Spam beveiliging, AntiSpam, FireWall door CleanTalk


Geen CAPTCHA, geen vragen, geen dieren tellen, geen puzzels, geen wiskunde en geen spambots. Universele AntiSpam plugin.

AntiSpam features

  1. Stops spam comments.
  2. Stops spam registrations.
  3. Stops spam contact emails.
  4. Stops spam orders.
  5. Stops spam bookings.
  6. Stops spam subscriptions.
  7. Stopt spam enquêtes, polls.
  8. Stopt spam in widgets.
  9. Stopt spam in WooCommerce.
  10. Controleert en verwijdert de bestaande spamreacties en spam gebruikers.
  11. Compatibel met mobiele gebruikers en apparaten.
  12. Compatibel met de algemene verordening inzake gegevensbescherming (AVG) (EU).
  13. Real-time e-mail validatie. Is e-mail echt of niet.
  14. Het blokkeren van wegwerp & tijdelijke e-mails
  15. Geen Spam – Geen Google Sancties. Geef uw SEO boost.
  16. Mobile friendly Anti Spam & FireWall.
  17. Stops spam in Search Form.
  18. Disable comments.
  19. Spam FireWall: Anti-Flood
  20. Spam FireWall: Anti-Crawler
  21. Hide «Website» field for comments

Public reviews

CleanTalk – Anti-Spam service op basis van de cloud om uw site botvrij te houden.
NewsWatch Review.

Using CleanTalk on WPLift was a great test as we receive huge amounts of spam.
Oliver Dale,

I know you have heard of a number of anti-spam plugins. But you must know, the cloud-based ones are the best regarding detection rate. They compare all the content in forms with their own algorithm to find out the legibility.

Het belangrijkste verkoopargument van CleanTalk is voor mij niet alleen de effectiviteit ervan. Het is het feit dat CleanTalk op de achtergrond werkt. Het zorgt er niet voor dat gebruikers door hoepels springen om een opmerking in te dienen of een formulier in te vullen.

Gratis proef dan $8 per jaar

CleanTalk is a free anti spam plugin which work with the premium Cloud AntiSpam service This plugin as a service

AntiSpam protection for comments

Native spam protection for WordPress, JetPack comments and any other comment plugins. The plugin moves spam comments to SPAM folder or you can set the option to ban spam comments silently. You can also enable the option in the plugin settings to auto-delete comments from SPAM folder.

Spam bots registrations filter

Spam filter for contact forms

Contact Form by WPForms spam filter

Plugin extends Contact Form by WPForms to provide spam protection. It filters spam submissions for each type of forms – simple contact form, marketing form, request a quote and etc.

Elementor Website Builder filter

Plugin extends spam protection for Elementor Website Builder. It filters spam submisssions and tested for contact form type.

Gravity forms spam filter

Plugin extends spam protection for Gravity forms. It filters spam submisssions for any type of forms.

Formidable Form Builder spam filter

Plugin extends spam protection for Formidable Form Builder. It filters spam submisssions for any type of forms – Contact Form, Survey & Quiz Forms.

Contact Form 7 spam filter

Plugin extends spam protection for Contact Form 7 (CF7). It can be used with any other third-party spam filters.

Ninja forms contact form spam filter

WooCommerce spam filter

Anti-spam by CleanTalk filters spam registrations and spam reviews for WooCommerce. The plugin is fully compatible with WooCommerce 2.1 and higher.

Antispamfilter voor nieuwsbrieven

Spam filter for theme contact forms

The plugin blocks spam emails via any theme (built-in ones included) contact forms. The plugin filters spam emails silently (without any error notices on WordPress frontend) in AJAX forms as well.

bbPress spam filter

Spambeveiliging voor alles over bbPress: logins, registraties, forums , onderwerpen en antwoorden.

Other spam filters

  • WordPress Landing Pages.
  • WP User Frontend, UserPro.
  • Any WordPress form (checkbox ‘Custom contact forms’).
  • Any submission to the site (checkbox ‘Check all POST data’)

Compatible with WordPress cache plugins

Controleer bestaande commentaren op spam. Bulk spam commentaar verwijderen. Spamcommentaar opschonen.

With the help of anti-spam by CleanTalk you can inspect through existing comments to find and quickly delete spam comments at once. To use this function, go to WP Console -> Comments -> Find spam comments.

Controleer bestaande gebruikers op spam. Bulk spamaccounts verwijderen. Spam gebruikers opschonen

Met behulp van anti-spam door CleanTalk kun je inspecteren via bestaande accounts om spam gebruikers in één keer te vinden en snel te verwijderen. Om deze functie te gebruiken, ga naar WP Console – > Users – > Check for spam. Ook kan je een lijst met spam gebruikers naar CSV exporteren.

Gebruikers blokkeren per land

Automatically block comments and registrations from the countries you have set a ban for. This option is useful in cases of manual spam protection and for protection enhancement. If your site is not intended for international audience and you do not expect comments/users from other countries.

Reacties blokkeren door “stop woorden”

You can block comments which contain “stop words” to enhance spam protection and messages with obscene words blocking. You can add particular words or phrases.

Private black lists for anti-spam service

Automatically block comments and registrations from your private black
IP/email address list. This option helps to strengthen the spam protection from a manual spam or block unwanted comments from users. You can add not only the certain IP addresses, but also a separate subnet to your personal black list.

Private black list for Spam FireWall

It allows you to add individual IP addresses and subnets to Spam FireWall. It
blocks the spam attacks from IP addresses which are not included in the SFW base yet. This option can help to block HTTP/HTTPS DDoS, SQL, brute force attacks and any others that made it through the HTTP/HTTPS. You can add not only the certain IP addresses, but also a separate subnet to your personal black list.

Hide «Website» field for comments

This option hides the «Website» field from standard WordPress comments forms. After that spammers won’t be able to send spam links using «Website» field in the bottom of the comments form.
This option is disabled by default and can be enabled in plugin Settings in your WordPress dashboard.

Low false/positive rate

This plugin uses multiple anti-spam tests to filter spam bots having as low false/positive rate as possible. Multiple anti-spam tests help to avoid false/positive blocks of the real website visitors even if one of the tests failed.

Hoe effectief is CleanTalk?

Het nauwkeurig blokkeren van spam is niet eenvoudig, maar CleanTalk heeft een zeer laag aantal Valse/Positieve scores. Hier zijn de actuele statistieken over valse positieven voor alle klanten.

  • Registraties – 0,004%
  • Reacties – 0,004%.
  • Contactformulieren – 0,006%
  • Bestellingen (WooCommerce) – 0.016%
  • Site zoeken – 0.001%

De statistieken zijn berekend op 28 augustus 2020 voor 2.5 miljoen aanvragen.

How CleanTalk improves SEO for your website?

So, you already know that the speed of the site has a direct impact on SEO.

CleanTalk works faster than most of the other anti-spam plugins. It is common knowledge that the faster your site loads, the better your customer experience is, the better your SEO will be, and the better your site will convert. Speed is becoming increasingly important in SEO, conversion and user experience. Today, site speed is one of the most important ranking factors on Google. A site that loads slowly will lose visitors and potential revenue.

There are different ways of improving your site’s loading performance. One important parameter for site performance is to install well-developed plugins from a reputable source.

Among anti-spam plugins CleanTalk AntiSpam is one of the fastest. Despite the
large plugin functionality, the developers have optimized the performance of
the plugin so that AntiSpam by CleanTalk is faster than most analogs. This contributes to the cloud service architecture, as all calculations take place in the cloud, not on the server, the server receives the finished result for further action.

How CleanTalk works?

  • A visitor writes a comment or registers
  • Anti-Spam by CleanTalk plugin sends action parameters into the CleanTalk cloud
  • Service analyzes the parameters
  • If this is a visitor, the comment will be published. If it’s a spam bot, then CleanTalk blocks this comment or registration.
  • Parameters are written to the spam log which can be viewed in the Control Panel service.

CleanTalk team has been developing a cloud antispam system for five years and has created a truly reliable anti-spam service designed for you to guarantee
your safety.

Spam attacks log

Service CleanTalk (this plugin is a client application for CleanTalk anti-spam service) records all filtered comments, registration and other spam attacks in the “Log of spam attacks” and stores the data in the log for up to 45 days. Using the log, you can ensure reliable protection of your website from spam and no false/positive filtering.

Spam FireWall

CleanTalk has an advanced option “Spam FireWall”. Spam FireWall allows blocking the most active spam bots before they get access to your website. It prevents spam bots from loading website pages so your web server doesn’t have to perform all scripts on these pages. Also it prevents scanning of pages of the website by spam bots. Therefore Spam FireWall significantly reduces the load on your web server. Spam FireWall also makes CleanTalk the two-step protection from spam bots. Spam FireWall is the first step and it blocks the most active spam bots. CleanTalk Anti-Spam is the second step and checks all other requests on the website in the moment of submitting comments/registers etc.

Spam FireWall is volledig compatibel met de meest populaire VPN-diensten.
Ook ondersteunt Spam FireWall alle zoekmachines Google, Bing, Yahoo, Baidu, MSN, Yandex, Yahoo, Baidu, Yandex en etc.

How Spam FireWall works?

  • The visitor enters to your web site.
  • HTTP-aanvraag gegevens worden gecontroleerd in de bijna 5,8 miljoen van de geïdentificeerde IP-adressen van spambots.
  • If it is an active spam bot, the bot gets a blank page, if it is a visitor then he receives a normal page. This process is completely transparent for the visitors.

All the CleanTalk Spam FireWall activity is being logged in the process of filtering.

Spam FireWall DDoS Protection

Spam FireWall kan HTTP/HTTPS DDoS-aanvallen beperken. Wanneer een indringer GET-aanvragen doet om je site aan te vallen, blokkeert Spam FireWall alle verzoeken van slechte IP-adressen. Je site geeft de indringer een speciale pagina met de beschrijving van de afwijzing van DDoS in plaats van de website pagina’s. Daarom helpt Spam FireWall om het CPU-gebruik van je server te verminderen.

Vertaald met

Spam FireWall: Anti-Flood & Anti-Crawler

Spam FireWall: Anti-Flood and Anti-Crawler options are intended for blocking unwanted bots, content parsing, shop goods prices parsing or aggressive website scanning bots. Learn more

No spam comments, no spam registrations, no spam contact emails, no spam trackbacks. CAPTCHA-free anti-spam for WordPress

Spam is one of the most irritating things. Spam rates are increasing every year and conventional anti-spam can no longer handle all spam bots. CleanTalk prevents and automatically blocks spam. You’ll be surprised how effective CleanTalk is in protecting from spam.

AntiSpam plugin info

CleanTalk is an all-in-one antispam solution for WordPress that protects login, comment, contact and WooCommerce forms at once. You don’t need to install separate antispam plugins for each form. It allows your blog to work faster and save resources. After installation you will forget about spam; your CleanTalk plugin will do all the work. You won’t have to deal with spam as CleanTalk does this for you automatically.

CleanTalk is a transparent antispam tool, we provide detailed stats of all incoming comments and logins. You can always be sure that there are no errors. We have developed a mobile app for you to see antispam stats wherever you want.

We have developed the antispam for WordPress that protects you from spam bots at the maximum level allowing you to provide your visitors a simple and convenient form of comments/registrations without annoying CAPTCHAs and puzzles. CleanTalk detects spam in multistage tests allowing us to block up to 99.998% of spam bots.
The anti-spam method offered by CleanTalk avoids inconvenient for communication methods (CAPTCHA, question-answer etc.), and offers to your site visitors a more comfortable one.

CleanTalk is a premium anti-spam service for WordPress, the plugin works with
our own CleanTalk Cloud Service. Anti Spam by CleanTalk offers a free trial, you can look at the pricing here. We provide anti-spam services at the highest level. To maintain this level we cannot afford to offer a free version of our service, as this will immediately affect the quality of the providing anti-spam protection. Paying for a year of anti-spam service, you save a lot more and receive:

  • Maximaal 99,998% bescherming tegen spam bots.
  • Time and resources saving.
  • Meer aanmeldingen/reacties/bezoekers.
  • Spambescherming van de verschillende sites tegelijk in verschillende CMS.
  • Gemakkelijk in installatie en gebruik.
  • Verkeerstijging en loyaliteit aan de gebruikers.
  • 24/7 technische ondersteuning.
  • Wis statistieken.
  • Spam FireWall.
  • No captcha (reCaptcha), puzzles, etc.
  • Free mobile app to control anti-spam protection on your website.

Additional features

  • Dagelijkse en wekelijkse gedetailleerde anti-spam rapporten: verkeer versus spam.
  • Apps for iPhone, Android to control anti-spam service, comments, signups, contacts, traffic and spam stats for the last 7 days.
  • AntiSpam apps for most popular CMS on

How to protect sites from spam bots without CAPTCHA?

The most popular anti spam method is CAPTCHA – the annoying picture with curved and sloping symbols, which are presented to the visitor to decipher and fill in. In is supposed that spam bots won’t discern these CAPTCHA, but a visitor will. CAPTCHA provokes great irritation, but if the visitor wants to comment, he has to fill in these symbols time after time, making mistakes and starting once again. Sometimes CAPTCHA reminds us of the doodles of a two year old child. For users with vision problems CAPTCHA is an insurmountable obstacle. Users hate captcha. Captcha for users means “hate”. Unreadable CAPTCHA stops about 80% of site visitors. After 2 failed attempts to decipher CAPTCHA 95% of visitors reject further attempts. At the sight of CAPTCHA and after input errors, many visitors leave the resource. Thus, CAPTCHA helps to protect the resource spam both from bots and visitors. CAPTCHA is not a panacea from spam. Doubts concerning the Need for CAPTCHA?

“Ultimately, CAPTCHAs are useless for spam because they’re designed to tell you if someone is ‘human’ or not, but not whether something is spam or not.” Matt Mullenweg

You do not have to work in IT to know what spam is. Besides piles of unwanted email, there are spam bots, or special software programs designed to act as human website visitors that post unwelcome messages over the Internet to advertise dubious services. More often than not spam messages do not even make sense. Similar to bacteria and virus mutations developing antibiotic resistance, spam bots are becoming more resilient in penetrating Internet firewalls and security layers.

CleanTalk’s features

Anti-Spam by CleanTalk with Spam FireWall is one of the fastest plugins that allows you to lower the server load. One of the important parameters for each webmaster is the speed of the site, so we make sure that our plugin consumes as few server resources as possible. The Cloud Service provides the advantage: all data processing takes place in the Cloud.

CleanTalk team has developed unique anti spam algorithms to assess visitors behavior. CleanTalk analyzes user behavior and the parameters of the filled forms. Our anti-spam module, being installed in your website, sends the behavior parameters of either a visitor or a spam bot. When these parameters are estimated, the anti spam service makes a decision – to post a message or to define it as spam and reject it. Based on these checks, the service forms its own list of email addresses used by spam bots.

The registrations of visitors are being checked in a similar manner. The service adds to the blacklist not just email addresses, but also IP addresses and domains of websites that promote themselves through spam mailing. All of this happens automatically and requires no action from the administration of the website. In 2.5 million queries the service makes a mistake in 40-45 cases, i.e. CleanTalk detects spam with 99.9982% accuracy. We constantly monitor these errors and make adjustments to our algorithms. Even with this exceptional accuracy our team is aiming to improve the figures over time.

All-in-one. CleanTalk protects form spam all forms instantaneously – comments, registrations, feedback, contacts. No need to install additional plugins for each form. You save resources and increase performance of your website.

Spam attacks log. Anti-Spam by CleanTalk records all filtered comments, registrations and other spam attacks in the “Log of spam attacks” and stores the data in the log for up to 45 days. Using the log, you can ensure reliable protection of your website from spam and experience no false/positive filtering.

With the help of anti-spam by CleanTalk you can check existing comments and users, to find and quickly delete spam comments at once. This allows administrators of websites to automatically check and identify spam bots, comments and users, which were not detected by conventional anti-spam tools. The existing comments and users checking process is performed in a database of the nearly 2 million identified spam bots. Detailed spam stats allows CleanTalk customers to fully control it.

CleanTalk has an advanced option “Spam FireWall”. This option allows you to block the most active spam bots before they get access to your website. It unloads you website pages when an attempt attack was made, so your web server won’t run unnecessary scripts on these pages. Also it prevents any scanning of website pages by spam bots. Subsequently Spam FireWall significantly reduces your webserver load. Spam FireWall can mitigate HTTP/HTTPS DDoS attacks. When an intruder makes GET requests to attack your website, Spam FireWall will block requests from bad IP addresses. Your website gives the intruder a special page with a description of DDoS rejection instead of the website pages. Spam FireWall can help to reduce the CPU usage of your server because of this reason.

“CleanTalk team has been developing a cloud spam protection system for five years and has created a truly reliable anti-spam service designed for you to guarantee your safety”.

Witte Label Modus

To switch the plugin work in the white-label mode you should set up a few settings on your main site in WordPress Multisite Network:

  1. Check setting “Enable White Label Mode”.
  2. Fill “Hoster API Key” field with key from CleanTalk’s hoster panel.
  3. Fill “Plugin name” field. It could be any name you want for the plugin.
  4. Save settings.

De plugin zal alles doet de rest.

Auto-Update CleanTalk AntiSpam

CleanTalk Dashboard stelt u in staat om de plugin automatisch bij te werken en meerdere websites te selecteren en de plugin in één keer bij te werken op alle sites met één klik of u kunt een automatische update instellen voor alle websites of afzonderlijke websites.

Opmerking: er is 24 uur vertraging voordat de automatische bijwerking begint. Deze vertraging maakt het mogelijk om problemen te vermijden. Alle updates die via het CleanTalk Dashboard handmatig worden uitgevoerd, zijn onmiddellijk uitvoerbaar.

Auto-update systeem zal werken vanaf CleanTalk AntiSpam versie 5.88.

Real-time e-mail validatie. Is e-mail echt of niet.

Het is erg belangrijk om er zeker van te zijn dat de gebruiker zijn echte e-mailadres gebruikt. Spambots gebruiken vaak valse e-mailadressen, d.w.z. welke adressen er niet bestaan.

CleanTalk zal het bestaan van e-mailadressen in real time controleren.

Ook niet-bestaande e-mailadressen brengen voor site-eigenaren een aantal andere problemen met zich mee.

  • Je kunt nooit per e-mail contact met hen opnemen,
  • de klant zal nooit meldingen van je ontvangen (activeringsbrief, wachtwoord herstel, e-mail distributie, meldingen, etc.),
  • als je e-mailmarketing voor je klanten gebruikt, kan een groot aantal niet-bestaande e-mails op de mailinglijst ertoe leiden dat je IP-adres wordt toegevoegd aan verschillende zwarte lijsten van e-mailservers.

Improve your email list with email validation without fake emails.

Het blokkeren van wegwerp & tijdelijke e-mails

Blokkeer nep- en verdachte gebruikers met tijdelijke e-mails om de aflevering van e-mails te verbeteren. Het voorkomt dus ook kwaadaardige activiteiten, spam bots en internettrollen.

Stops Spam in Search Form

Spam bots kunnen je zoekformulier gebruiken om een GET aanvraag te doen met spam tekst.
CleanTalk Anti-Spam heeft de mogelijkheid om je site zoekformulier te beschermen tegen spam bots. Elke keer genereert de zoekopdracht een nieuwe pagina en als er veel verzoeken zijn, kan dit een extra belasting veroorzaken. Dus, onder bepaalde voorwaarden, kunnen spam-zoekopdrachten worden geïndexeerd, wat van invloed is op SEO,

  • Spam FireWall blokkeert de toegang tot alle site pagina’s voor de meest actieve spambots. Het verlaagt de belasting en het verkeer van je webserver gewoon door dit te doen.
  • Anti-Spam protection for website search forms repels spambots.
  • Als je zoekformulier te vaak gegevens krijgt, zal de CleanTalk Anti-Spam plugin een pauze toevoegen en deze bij elke nieuwe poging om gegevens te verzenden verhogen. Het bespaart je webserver processor tijd.
  • Spam protection allows you to not forbid indexation for the crawler bots if you really need it but simultaneously you will get protection from spambots.

Je weet altijd waar gebruikers op je site naar op zoek waren.

Disable comments

This option disables comments on your site. You can choose one or several options:

  • Disable comments for posts
  • Disable comments for pages
  • Disable comments for media

When using Disables comments, existing comments will not be deleted and will remain on the pages.


  • Albanees (sq_AL) – met dank aan fjalaime
  • Frans (fr_FR) – met dank aan Gilles Santacreu
  • Spaans (es_ES) – met dank aan Andrew Kurtis en WebHostingHub


Tenminste WordPress 3.0. PHP 5 met CURL of file_get_contents() functie en de instelling ‘allow_url_fopen’ ingeschakeld. De plugin is volledig compatibel met PHP 7.

Max power, all-in-one, premium anti-spam WordPress plugin. No comments & registrations spam, no contact spam, protects any forms. Just install and forget spam.


  • AntiSpam-instellingen zijn gemakkelijk te gebruiken.
  • AntiSpam plugin rejected a spam bot at the CAPTCHA less registration form. The plugin provides explanation to visitor and websites about each rejected comment/registration of contact message.
  • Use AntiSpam analytics tool for each website in service Dashboard to have information about spam/legitimate stats.
  • Use AntiSpam log to control anti-spam plugin.
  • CleanTalk works faster than most of other anti-spam plugins.
  • The Dashboard with a map of most spam active countries per your account.
  • De plugin verwijdert/verwijdert de bestaande spamreacties en gebruikersaccounts.
  • CleanTalk's dashboard update link.
  • Automatische update bevestiging.
  • Site opties.
  • CleanTalk's dashboard.
  • SpamFireWall log.


Installatie instructies

  1. Download, install and activate ‘Anti-spam by CleanTalk’.

  2. Verkrijg toegangssleutel

  3. Enter Access key in the settings: WordPress console -> Settings -> Antispam by CleanTalk

  4. Do dummy spam comment (registration or contact message) with email You should see notice: Forbidden. Sender blacklisted.

  5. Done! The plugin is ready to use.

Videogids – Anti-Spam Plugin installatie in WordPress.

Important! To test spam protection you must post a dummy submissions as website visitor (use must logged out from WordPress console), because the plugin doesn’t filter submissions from WordPress administrators.

How can setup plugin in WPMU version?

In WordPress multisite version you can switch the plugin to use Global Access key. In this way the plugin doesn’t show any options to enter Access key in plugin settings and doesn’t show Trial banner in WordPress backend. To setup global CleanTalk access key for all websites in WPMS, define constant in your wp-config.php file before defining database constants:

define('CLEANTALK_ACCESS_KEY', 'place your key here');

Maak het voordat je de plugin activeert. Als de plugin al geactiveerd is, deactiveer hem dan en voeg de code toe en activeer hem opnieuw.
Nu zullen alle subsites deze toegangssleutel hebben.

Manage and control spam protection

Go to Dashboard at the or use Android, iPhone anti-spam app to manage and control spam protection.


Waarom spammen ze me?

Spammers want to get backlinks from your site to improve their site’s PageRank or redirect your visitors to malicious sites.This level of spam can damage your reputation with readers and commentators if you fail to tackle it. It is not uncommon for some WordPress websites to receive hundreds or even thousands of comments every week. However, by using a CleanTalk plugin, spam can be easily handled by your WordPress website.

Is the anti-spam protection safe for mobile visitors?

Yes, it is. The plugin doesn’t block mobile visitors as well as desktop website visitors. It uses several independent anti-spam tests to decrease the number of false outcomes and to have as low false-positive rate as possible. Multiple anti-spam tests help to avoid false/positive blocks for real website visitors even if one of the tests failed.

What does the plugin do with spam comments?

Spam comments are being moved to SPAM folder by default or you can set the option to ban spam comments silently.

How can I test the anti-spam protection?

Please use the email for comments, contacts or signups to see how the anti-spam protection works. Also you can see the logs for the last 7 days at the Control panel or look at the folder “Spam” for banned comments.

Is the plugin effective against spam bots?

The plugin Anti-Spam by CleanTalk stops up to 99.998% of spam comments, spam signups (registrations), spam contact emails, spam subscriptions, spam bookings or spam orders.

Beschermt de plugin tegen brute force, DoS-aanvallen en spamaanvallen?

Yes, it does. Please turn the option ‘Spam FireWall’ on in the plugin settings to protect your website from DoS/DDoS, XML-RPC attacks.

How does the plugin stop spam?

Let op – de acties van de beheerder worden NIET gecontroleerd.

The plugin uses several simple tests to stop spammers:

  1. JavaScript anti-spam test. 99% of spam bots don’t have full JavaScript functions support. So, the plugin has the code which can be run by normal visitor and can’t be run by the spam bot.
  2. Email, IP, domain spam activity list entries check. The plugin uses spam activity database online at, consisting of more than 20 billion spam activity records of IPs, Emails, Domains and ASN. If the sender’s IP or Email is in the database, the sender gets some spam scores. To reduce false/positive rate the plugin not only uses the blacklist test to ban spammers, the sender will be banned when and only when multiple spam tests have been failed.
  3. Comment submit time. Spam bots usually submit the info immediately after the page has been loaded, this happens because spam bots don’t actually fill the web form, they just send $_POST data to the blog. The normal visitor sends the data after several seconds or minutes.

Will the anti-spam plugin protect my theme?

Yes, it will. The Anti-spam by CleanTalk is compatible with any WordPress theme.

What about pingback, trackback spam?

De plugin geeft standaard pingbacks door zonder enige controle. Alle trackbacks worden geblokkeerd als de afzender spamactiviteit had.

Can I use CleanTalk with Akismet?

Sure, you can use CleanTalk with Akismet. In this case you will probably have higher false/positive rate (when legitimate comments/signups are being denied), but you will have stronger anti-spam protection on your website.

Is CleanTalk beter dan Akismet?

Please look at this features comparison here

Can I use CleanTalk to remove pending spam comments?

Yes, you can. The plugin has the option to test all pending comments via database of spam active IP/Email, found spam comments will be moved to Trash folder.

How does the plugin find spam in pending comments or registered accounts?

The plugin checks all non-spam comments in the blacklist database and shows you those senders who have spam activity on other websites.
There are some differences between blacklist database and API to protect you from spam bot registrations/comments online. Blacklists show all history of spam activity, but our API (which is used in spam tests) relies on other parameters too: last day of activity, number of spam attacks during the last days etc. These mechanisms help us to reduce the number of false outcomes. So, there is nothing strange, if some emails/IPs are not found by bulk comments/accounts test.

Om reacties te bekijken, ga naar hier:

WordPress console -> Comments -> Find spam comments

Om gebruikers te controleren, ga naar hier:

WordPress console -> Users -> Find spam users

Should I use other anti-spam tools (Captcha, reCaptcha and etc.)?

CleanTalk stops up to 99.998% of spam bots, so you can disable other anti-spam plugins (especially CAPTCHA-type anti-spam plugins). In some cases several anti-spam plugins could conflict with each other, so it would be better to use just one plugin.

Is de plugin compatibel met WordPress MultiUser (WPMU of WordPress-netwerk)?

Yes, the plugin is compatible with WordPress MultiUser. Each blog in multisite environment has individual anti-spam options for the protection from spam bots.

Na de installatie merkte ik dat het aantal spamaanvallen in de statistieken is toegenomen

There are a few reasons for this:

  • With the indexing of your web-site by the search systems, appearance of external links and better search results position, your web-site attracts more and more spambots.
  • Non-transparent protection systems like CAPTCHA or question/answer, that don’t have spam attacks stats, don’t let you see the whole picture, or the picture is incomplete.
  • Counting methods for spam attacks and spam bots are different for different systems, thus the diversity appears. We seek to provide detailed stats.

Why my dummy “spam” comment passed to the WordPress?

The plugin has several options to detect spam bots and humans. If you just post spammy text like this:

"I want to sell something", "Buy something here.." and etc

the comments will be passed, because the plugin detects sender as a human. So, use special email to test the anti-spam functionality or wait a few days to see how the plugin works.

Is it free or paid?

The plugin is free and distributed under the GPLv2 license.

CleanTalk anti-spam plugin works with a cloud base anti-spam service and this plugin is a Software as a service (SaaS).
CleanTalk it’s a free plugin that works with premium Cloud Anti-Spam service.

The fact that the plugin works with a premium type service is mentioned in the plugin annotation and in its WordPress catalog description.

We are ready to help you with any issue regarding CleanTalk. There are hundreds of environment compositions and we do our best to cover as many as possible.

Can I use CleanTalk with cache plugins?

Anti-spam by CleanTalk doesn’t use static HTML code in its templates, so all anti-spam functions work correctly with any WordPress cache plugins.

Does the plugin protect from spam bots if I use forms with third-party services?

Yes, it does. Plugin protects web-forms on your websites which send data to third-party servers (like MailChimp). To enable this protection set the option ‘Protect external forms’ in the plugin settings.

Is CleanTalk compatibel met Cloudflare?

CleanTalk is fully compatible with CloudFlare. Service doesn’t filter CloudFlares IP’s (AS13335) through blacklists database, so in this case plugin/service filters spam bots using other anti-spam tests.

Is CleanTalk compatible with a content delivery network (CDN)?

Yes, it is. CleanTalk works with any CDN system, i.e. CloudFlare, MaxCDN, Akamai.

Can I use CleanTalk functionality in my plugins?

Yes, you can. Just use following snippet:

    include_once( ABSPATH . '/wp-content/plugins/cleantalk-spam-protect/cleantalk.php' );
//for registration test:
$res=ct_test_registration("nickname", "", "");
//or for some other messages (contact forms, comments etc.)
$res=ct_test_message("nickname", "", "", "test message");

$res now contents array with two parameters:
* $res[‘allow’] – is request allowed (1) or not (0)
* $res[‘comment’] – comment for our server’s decision.

I see two loads of script cleantalk_nocache.js. Why do you use it twice?

This script is used for AJAX JavaScript checking. Different themes use different mechanisms of loading, so we use two methods for loading our script. If you absolutely know what you are doing, you can switch one of the methods off by defining constants in your wp-config.php file:

define('CLEANTALK_AJAX_USE_BUFFER', false); //false - don't use output buffering to include AJAX script, true - use it


define('CLEANTALK_AJAX_USE_FOOTER_HEADER', false); //false - don't use wp_footer() and wp_header() for including AJAX script, true - use it

Can I add exclusions for some pages of my site?

Yes, you can. There is a special setting in plugin settings.
You could use this guide to learn more:

Kan ik mijn persoonlijke gegevens niet naar CleanTalk servers sturen?

Yes, you can exclude your data. There is a special setting in plugin settings.
You could use this guide to learn more:

How to test Spam FireWall?

Use special IP in URL to test Spam FireWall. For example,

Attentie! De incognitomodus moet ingeschakeld zijn in je browser wanneer je een test doet. Om de incognitomodus in te schakelen druk je op Ctrl+Shift+N voor Chrome, Opera и Safari browsers; druk op Ctrl+Shift+P voor Firefox, Internet Explorer en Microsoft Edge. Een volledige handleiding voor het inschakelen van de Incognito modus vindt je hier:

How can I enter access key in WPMU version?

To set up global CleanTalk access key for all websites in WPMU, define constant in your wp-config.php file before defining database constants:

define('CLEANTALK_ACCESS_KEY', 'place your key here');

Now, all subsites will have this access key.

Why is CleanTalk faster and more reliable than stand-alone solutions?

All anti-spam checks are held in the cloud and don’t overload the web server. The cloud solutions have a huge advantage since the parameters are being compared with information from more than 100,000 websites.

I see a lot of blocked messages with the reason “Forbidden. Please enable JavaScript. Spam sender name.” in my logs

A lot of spam bots can’t perform JavaScript code, so it is one of the important checks and most of the spam bots will be blocked with the reason “Forbidden. Please enable JavaScript. Spam sender name.” All browsers can perform JS code, so real visitors won’t be blocked.

If you or some of your visitors have the error “Forbidden. Enable JavaScript.” please check JavaScript support in your browser and do this JavaScript test at this page:

If you think that there is something wrong in the messages blocking, let us know about it. Please submit a support request here:

Werkt de plugin met Varnish?

CleanTalk works with Varnish, it protects WordPress against spam, but by default the plugin generates a few cookies for the protection from spam bots and it also disables Varnish cache on pages where CleanTalk’s cookies have been stored. To get rid of the issue with cache turn off the option ‘Set cookies’ in the plugin settings.

WordPress console -> Settings -> CleanTalk -> Advanced settings

Now the plugin will protect WordPress comments, registrations and most of popular contact forms, but will not protect some of rarely used contact forms.

Does the anti-spam plugin work with Accelerated Mobile Pages (AMP)?

Yes, it does. But you have to turn off the SpamFireWall and the option ‘Use AJAX for JavaScript check’ in Advanced settigns of the plugin to be fully compatible with Accelerated Mobile Pages.

How to close renewal or trial notice in the WordPress backend?

To close the notice please save the plugin settings again or it will be closed automatically within 60 minutes after the renewal.

Ik gebruik PHP 4.2 versie en ik krijg fouten met betrekking tot JSON. Waarom gebeurt het?

СleanTalk ondersteunt niet langer PHP lager dan versie 5.2 omdat de ondersteuning code incompatibiliteit heeft met de PHP 7 versie. Upgrade je PHP. Als je dat niet kunt doen, laat het ons dan weten via een ondersteuning ticket hier:

Moet ik iets veranderen in de instellingen van de plugin of in mijn CleanTalk configuratiescherm wanneer ik mijn site van HTTP naar HTTPS of vice versa verander?

No. You don’t need to change anything in the plugin’s settings or in your CleanTalk Control Panel. The plugin will work regardless of the protocol.

How to use Anti-Spam Log?

The following possibilities are available for you in the Anti-Spam Log:

  • Time period for all spam records you want to see.

  • Filter spamrecords op hun status: elke status, geweigerd, toegestaan.

  • Filter spam records by your websites.

  • Filter spamrecords op land waar ze vandaan kwamen.

  • Filter spam records op IP-adres, e-mailadres of gebruikersnaam.

  • Beschikbare opties voor een specifiek record:

    • Details – see item 4 below.
    • Spam/Not Spam – press this string if our system made wrong decision and blocked or approved a registration, a comment ot a contact form submission. More about it here:
    • Delete – delete a record permanently.
    • Personal blacklists – go to your website Black&White Lists page.
    • Details opnemen: blokreden, hoofdtekst van het bericht, extra opgevangen gegevens.

Spam FireWall en AntiSpam – netwerken blokkeren

Anti-Spam – will blocks users from selected IP or network from using contacts/messages/registrations/comments forms.
Spam FireWall – will blocks users from selected IP or network from entering the website.

Please, read more here

Spam Comment Management

By default, all spam comments are placed in the spam folder, now you can change the way the plugin deals with spam comments:

  1. Move to the Spam folder. All spam comments will be placed to the folder “Spam” in the WordPress Comments section except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.

You can prevent the proliferation of Spam folder. It can be cleaned automatically using the option “Keep spam comments for 15 days.” Enable this option in the settings of the plugin: WordPress Admin Page -> Settings -> Antispam by CleanTalk -> Advanced settings -> enable “Keep spam comments for 15 days” -> Save Changes.

  1. Move to Trash. All spam comments will be placed to the folder “Trash” in the WordPress Comments section except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.

  2. Ban comments without moving to WordPress backend. All spam comments will be deleted permanently without going to the WordPress backend except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.

Welke reacties werden geblokkeerd en verbannen, kun je hier bekijken in het Anti-Spam-logboek:

To manage the actions with spam comments, go to the Control Panel, select the website you want to change the actions for and go to “Settings” under the name of the website.

Please, read more here:

Hoe rapporteer ik een gemiste spam-bot of een onjuiste filter?

If you think the service has missed a spam bot or improperly filtered visitor to the website, you may notify us via the Anti-spam control panel. To do this,
Log in to Control panel
Click the line “Log” under the name of your website.
When you mark a record as “SPAM”, its e-mail and IP-address will be added to your personal blacklist for your website.
When you mark a record as “Not SPAM”, its e-mail and IP-address will be added to your personal white list for your website.

Lees hier meer

Is de plugin snel?

We ontwikkelen een plugin om het zo geoptimaliseerd mogelijk te doen, CleanTalk verlaagt de responstijd in backend of frontend niet. De plugin verwerkt alleen POST aanvragen naar de WordPress core, het duurt minder dan 1 seconde om resultaten te retourneren.

Is de plugin AVG compatibel?

Yes, it is. Please read this article,

Controleer externe formulieren

Als je site formulieren heeft die gegevens naar externe bronnen sturen, kun je de optie “Externe formulieren beschermen” inschakelen. In dit geval, als de plugin vaststelt dat het huidige bericht spam is, zal je formulier actie tijdelijk worden vervangen door je huidige hostnaam om te voorkomen dat er valse gegevens naar een externe bron worden verzonden.


9 januari 2022
very good plugin to help me protect my website from spammer and spam bot
9 januari 2022
So glad I found the CleanTalk plugins for anti-spam and security. They work great and are simpler to use than Akismet, Captcha and others. They're more cost-effective too. I now have confidence that my WordPress sites are well protected against spam and security issues.
Lees alle 2.327 beoordelingen

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“Spam beveiliging, AntiSpam, FireWall door CleanTalk” is open source software. De volgende personen hebben bijgedragen aan deze plugin.


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5.170 Jan 13 2022

One integration added, CleanTalk pixel functionality fixed and minor issues fixed.

  • Mod: Added Ova Login Integration. Registrations under protection
  • Fix. Common. is_trackback() notice fixed.
  • Fix: Removed the exeption for Quick Contact Form from ct_contact_form_validate()
  • Fix: Moved the function apbct_settings__get_ajax_type() to cleantalk-pluggable.php to fix the plugin activation error via the CLI
  • Fix: Fixed errors in apbct-public.js
  • Fix: Cleared notice_incompatibility if SFW disabled
  • Fix. AC. Antibot cookie fixed.
  • Fix. Pixel. Auto mode fixed.
  • Fix. JS. Checking JS via ajax fixed.
  • Fix. Pixel. Getting pixel url from backend fixed.

Early changelogs look in changelog.txt