CleanTalk Anti-Spam. Spam Firewall & Bot protection vs hCaptcha for WP

Trusted by over 200,000 websites and rated among the top anti-spam solutions for WordPress in 2026. No CAPTCHAs, no puzzles, and no visitor friction — just automatic spam blocking for forms, comments, registrations, subscriptions, and fake orders. Powered by a global spam detection network that includes over 1,078,000 websites and helps stop spam before it reaches your website. Install it in less than 30 seconds and start protecting your site immediately. Superpowers Stops spam comments. Stops spam registrations and logins. Stops spam contact emails. Stops fake orders eCommerce sites and online stores. Antispam for bookings. Antispam subscriptions. Stops spam surveys, polls. Stops spam in WooCommerce. Antispam for Search Form. Real-time email validation. Check if an email is real or fake. Checks and removes the existing spam comments and spam users. Blocking disposable & temporary emails. Block messages by languages, countries, networks and stop words. Public reviews It’s more than just a tool to combat spam; it’s an integral component that enhances the overall quality and performance of your website. techbusinessnews.com.au Improve Your Security WordPress Spam Protection With CleanTalk Anti-Spam The Hacker News. Compare reCAPTCHA & Akismet VS CleanTalk CleanTalk vs Google reRECAPTCHA CleanTalk vs Akismet Free trial then $12 per year CleanTalk is an anti-spam plugin which works with the premium Cloud Anti-Spam service cleantalk.org. This plugin as a service https://developer.wordpress.org/plugins/wordpress-org/detailed-plugin-guidelines/#6-software-as-a-service-is-permitted 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. Contact Form 7 Antispam Plugin extends spam protection for Contact Form 7 (CF7). It can be used with any other third-party spam filters. How to protect your Contact Form 7 using CleanTalk Anti-Spam plugin Contact Form by WPForms Antispam 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. Antispam for WooCommerce & fake orders filter Anti-spam by CleanTalk filters spam registrations, spam reviews, and fake orders for WooCommerce (any eCommerce plugin as well). The plugin is fully compatible with WooCommerce 2.1+ and online stores. Many other great contact, signups and all kind of forms that supported by Anti-Spam plugin by CleanTalk Asgaros Forum Avada Forms AWeber form builder Awesome Support – WordPress HelpDesk & Support Plugin Back In Stock Notifier for WooCommerce | WooCommerce Waitlist Pro bbPress by John James Jacoby Brave Popup Builder – Popup, Optins, Lead Generation, Survey & Interactive Content Brevo – Email, SMS, Web Push, Chat, and more by Brevo Calculated Fields Form Chatway Live Chat – AI Chatbot, Customer Support, FAQ & Helpdesk Customer Service & Chat Buttons Contact Form Clean and Simple Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress Contact Form Plugin by Fluent Forms Ninja forms Contact Form by Supsystic Contact Form Email Constant Contact Forms Comments – wpDiscuz By AdvancedCoding Customer Reviews for WooCommerce Floating Chat Widget: Contact Chat Icons, Telegram Chat, Line Messenger, WeChat, Email, SMS, Call Button – Chaty Forminator Forms – Contact Form, Payment Form & Custom Form Builder Easy Digital Downloads – eCommerce Payments and Subscriptions made easy eForm – WordPress Form Builder Elementor – Build, Design & Manage Forms From One Place Elfsight Blocks for Elementor — 80+ Widgets Events Manager – Calendar, Bookings, Tickets, and more! By Marcus (aka @msykes) Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI FiboSearch – Ajax Search for WooCommerce Flamingo Fluentbooking.com Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder GeoDirectory – WP Business Directory Plugin and Classified Listings Directory GiveWP – Donation Plugin and Fundraising Platform gravityforms.com – Powerful data capture fueled by Gravity Forms Gwolle Guestbook Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms HivePress – Business Directory, Listings & Classified Ads Plugin HubSpot All-In-One Marketing – Forms, Popups, Live Chat Hustle – Email Marketing, Lead Generation, Optins, Popups JetFormBuilder — Dynamic Blocks Form Builder Jetpack – WP Security, Backup, Speed, & Growth Jotform – Online Forms — Customizable Payment, Contact, Quiz, Survey Form Builder Kadence Blocks — Page Builder Toolkit for Gutenberg Editor Kali Forms (Free & Pro) — Contact Form & Drag-and-Drop Builder Klaviyo Kulahub Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages Leaky Paywall LearnPress – WordPress LMS Plugin for Create and Sell Online Courses Lead Form Builder & Contact Form By ThemeHunk Login & Register Customizer – Popup | Slider | Inline | WooCommerce MailChimp Forms by MailMunch MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc. My Sticky Elements – All-in-one Sticky Floating Contact Form, Call, Click to Chat, and 50+ Social Icon Tabs MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor Newsletter – Send awesome emails from WordPress by Stefano Lissa Newsletters by Tribulant Software Newsletters – MC4WP: Mailchimp for WordPress NEX-Forms – Ultimate Forms Plugin for WordPress by Basix Nextend Social Login and Register by Nextendweb Ninja forms by Kevin Stover Piotnet by piotnet.com Product Enquiry for WooCommerce (Now with AI Assistant) By WisdmLabs Quform by quform.com QuickCal by quickcal.co RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login By Metagauss Simple Registration for WooCommerce By Astoundify Smart Forms – when you need more than just a contact form By EDGARROJAS Strong Testimonials By WP Chill SureForms – Drag & Drop Contact Form & Form Builder, Payment Form, Survey, Quiz & Calculator By Brainstorm Force User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder By wpeverest Visual Form Builder By Matthew Muro WP Booking System – Booking Calendar By Roland Murg User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration By weDevs WS Form LITE – Drag & Drop Contact Form Builder By Mark Westguard Wufoo Shortcode By wronganswersonly WP User Frontend, UserPro WordPress Landing Pages ZeroBounce Email Verification & Validation By zerobounce Zoho Forms – Drag & Drop Form Builder for Websites – Contact Forms, Payment Forms, Order Forms & More By Zoho Forms Protection for the forms above works as a built-in feature of Anti-Spam by CleanTalk without requiring any additional actions from the user. Check existing comments for spam. Bulk spam comments removal. Spam comment Cleaner 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. Check existing users for spam. Bulk spam accounts removal. Spam users cleaner With the help of anti-spam by CleanTalk you can inspect through existing accounts to find and quickly delete spam users at once. For use this function, go to WP Console -> Users -> Check for spam. Also, you can export a list of spam users to the CSV. Private black lists for anti-spam service Automatically block comments and registrations from your private black IP/email address 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. Low false/positive rate This plugin uses multiple anti-spam tests to filter spam bots having as low false/positive rate as possible. 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. How does it work? The visitor enters to your web site. HTTP request data are being checked in the nearly 5.8 million of the identified spam bot IPs. 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: 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 https://cleantalk.org/help/anti-flood-and-anti-crawler By default, well-known good bots — including AI crawlers such as GPTBot (ChatGPT), ClaudeBot (Claude), Google-Extended (Gemini), and Copilot — are allowed. You can choose which of these bots to block individually in your private lists. Blocking a bot will stop the corresponding AI service from accessing your content. How to protect sites from spam bots without CAPTCHA? CleanTalk Anti-Spam protects websites from spam bots without using traditional CAPTCHA, reCAPTCHA, or other visitor challenges. Instead of showing CAPTCHA puzzles, the service uses behavioral analysis, invisible JavaScript tests, and a global spam database to detect spam automatically in the background. This CAPTCHA-free anti-spam protection works for contact forms, comments, registrations, and WooCommerce checkouts without creating friction for real visitors. By replacing CAPTCHA with automated spam detection, CleanTalk helps improve usability, accessibility, and conversion rates while still blocking spam effectively. 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 Real-time email validation. Is email real or Not. It is very important to be sure that the user used his real email address. Spambots very often use fake email addresses, i.e. which addresses do not exist. CleanTalk will check email addresses for existence in real time. Non-existing email addresses also entail several other problems for website owners. You can never contact them by email, the client will never receive any notifications from you (account activation letter, password recovery, email distribution, notifications, etc.), if you use email marketing for your clients, then a large number of nonexistent emails in the mailing list may result in your IP address being added to various blacklists of email servers. Improve your email list with email validation without fake emails. Blocking disposable & temporary emails Block fake and suspicious users with disposable & temporary emails to improve email delivery. So, it also prevents malicious activity, spam bots, and internet trolls. Stops Spam in Search Form Spam bots can use your search form to make a GET request with spam text. CleanTalk Anti-Spam has the option to protect your website search form from spam bots. Each time, the search generates a new page and if there are many requests, this can create additional load. So, under some conditions, spam searches can be indexed, which affects SEO, Anti-Spam protection for website search forms repels spam bots. If your search form gets data too often the CleanTalk Anti-Spam plugin will add a pause and increase it with each new attempt to send data. It saves your web server processor time. Spam protection allows you to not forbid indexation for the crawler bots if you really need it but simultaneously you will get protection from spam bots. You will always know what users were looking for on your site. 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. Email, Phones Address Encoder CleanTalk Anti-Spam offers a feature called “Encode contact data” that is designed to encode all email addresses on the website pages. Encoding email, phontes addresses increases the level of protection of contact data from being abused, parsed, getting spammed and used in spam mailing lists by bots and online criminals. To reveal the encoded email address simply click on it and it will be decoded instantly. Honeypot field The option helps to block bots. The honeypot field option adds a hidden field to the form. When spambots come to a website form, they can fill out each input field. Enable this option to make the protection stronger on these forms. Learn more about supported forms here.

The strongest CAPTCHA. Switch from reCAPTCHA and Turnstile for free. A built-in Migration Wizard helps you move from Google reCAPTCHA or Cloudflare Turnstile to hCaptcha in just a few clicks. hCaptcha is a drop-in replacement for reCAPTCHA that puts user privacy first. Need to keep out bots? hCaptcha protects privacy while offering better protection against spam and abuse. Help build a better web. hCaptcha for WP makes security easy with broad integration support, detailed analytics, and strong protection. Start protecting logins, forms, and more in minutes. Benefits Privacy First: hCaptcha is designed to protect user privacy. It doesn’t retain or sell personal data, unlike platforms that gather, own, and monetize global behavior. Better Security: hCaptcha offers better protection against bots and abuse than other anti-abuse systems. Easy to Use: hCaptcha is easy to install and use with WordPress and popular plugins. Broad Integration: hCaptcha works with WordPress Core, WooCommerce, Contact Form 7, Elementor, and over 60 other plugins and themes. Features Highlights Migration Wizard: Migrate from Google reCAPTCHA or Cloudflare Turnstile to hCaptcha in just a few clicks. Built-in Anti-Spam: Honeypot fields and minimum submit time catch bots before the hCaptcha challenge, reducing friction for real users. Detailed Analytics: Get detailed analytics on hCaptcha events and form submissions. AI-Ready Security: Selected security actions are exposed via the WordPress Abilities API for automation and AI-driven workflows. Pro and Enterprise: Supports Pro and Enterprise versions of hCaptcha. No Challenge Modes: 99.9% passive and passive modes in Pro and Enterprise versions reduce user friction. Protect Site Content: Protects selected site URLs from bots with hCaptcha. Works best with Pro 99.9% passive mode. Logged-in Users: Optionally turn off hCaptcha for logged-in users. Delayed API Loading: Load the hCaptcha API instantly or on user interaction for zero page loading impact. IP Access Control: Allowlist trusted IPs to skip hCaptcha and denylist abusive IPs to block form submissions. Country Access Control: Allowlist or denylist countries to control where hCaptcha protections apply. Multisite Support: Sync hCaptcha settings across a Multisite Network. Anti-Spam Honeypot Protection: A hidden field catches bots before they reach the hCaptcha challenge, reducing friction for real users. Minimum Submit Time: Blocks instant form submissions from automated scripts. IP Denylist: Block abusive IPs from submitting any protected form. Country Blocking: Restrict form submissions by country to stop region-specific spam campaigns. Customization Language Support: Supports multiple languages. Custom Themes: Customize the appearance of hCaptcha to match your site. Custom Themes Editor: Edit custom themes directly in the plugin. Login Compatibility: Compatible with all major hide login, custom login, and 2FA login plugins. Login Attempts: Protect your site from brute force attacks. Ease of Use Test Modes: Use hCaptcha in live and Pro/Enterprise test modes. Activation and Deactivation: Activate and deactivate plugins and themes with hCaptcha in one click. Forced Verification: Optionally force hCaptcha verification before form submission. Check Config: Check hCaptcha configuration before saving keys and settings. Auto-Verification: Automatically verify custom forms. Standard Sizes and Themes: Choose the size and theme of the hCaptcha widget. How hCaptcha Works The purpose of a CAPTCHA is to distinguish between people and machines via a challenge-response test and thus increase the cost of spamming or otherwise abusing websites by keeping out bots. To use this plugin, install it and enter your sitekey and secret in the Settings → hCaptcha menu after signing up on hCaptcha.com. hCaptcha Free lets websites block bots and other forms of abuse via humanity challenges. hCaptcha Pro goes beyond the free hCaptcha service with advanced machine learning to reduce the challenge rate, delivering high security and low friction along with more features like UI customization. hCaptcha Enterprise delivers a complete advanced security platform, including site-specific risk scores, fraud protection, and more to address both human and automated abuse. Privacy Notices hCaptcha is designed to comply with privacy laws in every country, including GDPR, LGPD, CCPA, and more. For example, hCaptcha has been certified under ISO 27001 and 27701 and is enrolled in the EU-US, UK-US, and Swiss-US Data Privacy Framework for GDPR compliance. Details are available at www.hcaptcha.com/certifications and www.hcaptcha.com/gdpr. With the default configuration, this plugin does not: track users by stealth; write any user’s personal data to the database; send any data to external servers; use cookies. Once you activate this plugin, the hCaptcha-answering user’s IP address and browser data may be sent to the hCaptcha service on pages where you have activated hCaptcha protection. However, hCaptcha is designed to minimize data used, process it very close to the user, and rapidly discard it after analysis. For more details, please see the hCaptcha privacy policy at: hCaptcha.com If you enable the optional plugin-local statistics feature, the following additional data will be recorded in your database: counts of challenge verifications per form only if you enable this optional feature: the IP address challenged on each form only if you enable this optional feature: the User Agent challenged on each form We recommend leaving IP and User Agent recording off, which will make these statistics fully anonymous. You can collect data anonymously but still distinguish sources. The hashed IP address and User Agent will be saved. If this feature is enabled, anonymized statistics on your plugin configuration, not including any end user data, will also be sent to us. This lets us see which modules and features are being used and prioritize development for them accordingly. Plugins, Themes, and Forms Supported WordPress Login, Register, Lost Password, Comment, and Post/Page Password Forms ACF Extended Form Affiliates Login and Register Forms Asgaros Forum New Topic and Reply Form Avada standard and multistep Forms Back In Stock Notifier Form bbPress New Topic, Reply, Login, Register, and Lost Password Forms Beaver Builder Contact and Login Forms Blocksy Companion Newsletter Subscribe, Waitlist, and Product Review Forms BuddyPress — Create Group and Registration Forms Classified Listing Contact, Login, Lost Password, and Listing Register Forms CoBlocks Form Colorlib Customizer Login, Lost Password, and Customizer Register Forms Contact Form 7 Cookies and Content Security Policy Customer Reviews for WooCommerce Review and Q&A Forms Divi Comment, Contact, Email Optin, and Login Forms Divi Builder Comment, Contact, Email Optin, and Login Forms Download Manager Form Droit Dark Mode Easy Digital Downloads Checkout, Login, Lost Password, and Register Forms Elementor Pro Form and Login Form Essential Addons for Elementor Login and Register Forms Essential Blocks Form Events Manager Booking Form Extra Comment, Contact, Email Optin, and Login Forms Fluent Forms, including Conversational, Multi-Step, and Login Forms Forminator Forms Formidable Forms GiveWP Form Gravity Forms Gravity Perks Nested Forms Icegram Express Form Jetpack Forms Kadence Form and Advanced Form LearnDash Login, Lost Password, and Register Forms Login/Signup Popup Login and Register Forms Mailchimp for WP Form MailPoet Form Maintenance Login Form MemberPress Login and Register Forms Ninja Forms Otter Blocks Forms Paid Memberships Pro Checkout and Login Forms Passster Protection Form Password Protected Form Profile Builder Login, Recover Password, and Register Forms Really Simple CAPTCHA Quform Forms Sendinblue Form Simple Download Monitor Form Simple Membership Login, Lost Password, and Register Forms Simple Basic Contact Form Spectra — WordPress Gutenberg Blocks Form Subscriber Form Support Candy New Ticket Form Theme My Login — Login, Lost Password, and Register Form Tutor LMS — Checkout, Login, Lost Password, and Register Form Ultimate Addons for Elementor Login and Register Forms Ultimate Member Login, Lost Password, and Member Register Forms UsersWP Forgot Password, Login, and Register Forms WooCommerce Login, Registration, Lost Password, Checkout, and Order Tracking Forms WooCommerce Germanized Return Request Form WooCommerce Wishlist Form Wordfence Security Login Form Wordfence Login Security Login Form WP Dark Mode WP Job Openings Form WPForms Form wpDiscuz Comment and Support Forms wpForo New Topic and Reply Forms Please note NOTE: This is a community-developed plugin. Your PRs are welcome. For feature requests and issue reports, please open a pull request. We also suggest emailing the authors of plugins you’d like to support hCaptcha: it will usually take them only an hour or two to add native support. This will simplify your use of hCaptcha and is the best solution in the long run. You may use native hCaptcha support if available for your plugin. Please check with your plugin author if native support is not yet available. However, the hCaptcha plugin provides a broader set of options and features so that you can use it with any form on your site. Instructions for popular native integrations are below: WPForms native integration: instructions to enable hCaptcha