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<!doctype html><html class="no-js" lang="en"><head><meta charset="utf-8"><meta http-equiv="x-ua-compatible" content="ie=edge"><meta name="wot-verification" content="c2e6d3c018445b29774e" ><meta name="google-site-verification" content="UUrWN-ztXH5yDfWBVAJKls9otr9OLjSekJW_NjeuzxU"><title>Spam Firewall by Cleantalk</title><script src="/assets/js/googtag_new.js"></script> <meta name="viewport" content="width=device-width, initial-scale=1"><meta name="description" content="CleanTalk SpamFireWall to Block Spam Traffic on Your Websites"><meta name="keywords" content="load, firewall, traffic, ip, block, email, spamfirewall" ><link href="/webpack/dist/critical.min.css?v=08_08_24" rel="stylesheet preconnect"><script src="/prettify/run_prettify.js" defer></script><script src="/tinymce/custom/prism.js" defer></script><link rel="apple-touch-icon" sizes="180x180" href="/favicons/apple-touch-icon.png"><link rel="icon" type="image/png" sizes="32x32" href="/favicons/favicon-32x32.png"><link rel="icon" type="image/png" sizes="16x16" href="/favicons/favicon-16x16.png"><link rel="manifest" href="/favicons/site.webmanifest"><link rel="mask-icon" href="/favicons/safari-pinned-tab.svg" color="#5bbad5"><meta name="msapplication-TileColor" content="#da532c"><meta name="theme-color" content="#ffffff"><script> let ct_lang = 'en'; let ipHref = '/blacklists/'; let ct_trustNumber = ''; let ct_headerHeight = 80; let ct_ip = '8.222.208.146'; const scriptPostSrc = '012532053887660339914:n8xyq2vbiic'; const googleContainerID = 'GTM-NZKWWB8'; let review_record_ip = ''; let email_domain = ""; let spam_check_record = ""; let record_type = ""; let record_found = ""; let url_lang_prefix = ''; let no_data = 'No data'; let check_bot = ''; let api_url = '/my-ip'; let ip = ''; let undedined_text = ''; let network_id = ''; let blacklisted_text = 'Blacklisted'; let notinlist_text = 'Not in list'; let js_yes = 'Yes' let thanks_text = '<p class="title-2 mb-16 article__flapper">Thank you for your feedback.</p><p>Please share this article in social media</p>'; let help_text = '<p class="title-2 mb-16">We are very sorry. How can we improve the article?</p>'; let langfaq = '' == '' ? 83 : 85; let chartmonths = ''; let chartvalues = ''; let bannerLimit = 0; let barChartData = { labels: chartmonths, datasets: [ { label: "Spam active", strokeColor: "#CC3300", pointColor: "#CC3300", data: chartvalues }, ] } </script> <script src="/webpack/dist/critical.bundle.min.js?v=03_09_24-1" defer></script><script src="/webpack/dist/main.bundle.min.js?v=14_11_24-1" defer></script><link rel="preload" href="/webpack/dist/main.min.css?v=08_08_24" as="style" onload="this.onload=null;this.rel='stylesheet'"><noscript><link rel="stylesheet" href="/webpack/dist/main.min.css?v=19_09_24"></noscript></head><body><noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-NZKWWB8" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <header class="header container--full-width sticky--top header--with-submenu" data-dc-component="header"> <div class="header__row"> <div class="logo"> <a href="/" title="cleantalk"> <svg class="logo__icon"> <use href="/assets/img/icons.svg?v27-08-24#icon-cleantalk"></use> </svg> <svg class="logo__text icon"> <use href="/webpack/dist/sprite.svg?v27-08-24#icon-cleantalk-logo"></use> </svg> </a> </div> <button type="button" class="button--reset hide-desktop google-search__button" data-dc-header-ref="lens"> <svg class="icon size-24"> <use href="/webpack/dist/sprite.svg#icon-search"></use> </svg> <span class="visually-hidden">google search trigger</span> </button> <button type="button" class="button--reset hide-desktop header__burger-button size-24" data-dc-header-ref="trigger"> <svg class="icon size-24"> <use href="/webpack/dist/sprite.svg#icon-menu"></use> </svg> <span class="visually-hidden">burger navigation</span> </button> <nav class="nav__container" data-dc-header-ref="menu"> <div class="nav__inner"> <button type="button" class="button--reset nav__close hide-desktop size-24" data-dc-header-ref="navclose"> <svg class="size-24 icon"> <use href="/webpack/dist/sprite.svg#icon-close"></use> </svg> <span class="visually-hidden">close navigation</span> </button> <ul class="nav__list" id="header-menu"> <li class="nav__item nav__item--main"> <a class="nav__link" href="/features">Features</a> </li> <li class="nav__item nav__item--dropdown nav__item--main accordion is-collapsed" data-dc-component="accordion"> <button class="nav__link accordion__trigger-btn" type="button" data-dc-accordion-ref="trigger[]" aria-haspopup="menu" aria-expanded="false">Solutions </button> <div class="accordion__content"data-dc-accordion-ref="content"> <ul class="accordion__menu menu__container" role="menu"> <li class="menu__li-title"><h6 class="menu__title">Anti-Spam for websites</h6></li> <li><a class="menu__item" href="/wordpress-anti-spam-plugin">Anti-Spam plugin for WordPress</a></li> <li><a class="menu__item" href="/anti-spam-plugins-for-websites">Anti-Spam plugins for any CMS</a></li> <li class="menu__li-title"><h6 class="menu__title">Security for websites</h6></li> <li><a class="menu__item" href="/wordpress-security-malware-firewall">Security plugin for WordPress</a></li> <li><a class="menu__item" href="/universal-security-plugin-for-websites">Security plugin for any CMS</a></li> <li><a class="menu__item" href="//l.cleantalk.org/website-malware-removal">Malware Removal</a></li> <li class="menu__li-title"><h6 class="menu__title">Blacklists</h6></li> <li><a class="menu__item" href="/blacklists">Blacklists Database</a></li> <li><a class="menu__item" href="/email-checker">Email Checker</a></li> <li class="menu__li-title"><h6 class="menu__title">Other services for websites</h6></li> <li><a class="menu__item" href="https://doboard.com" target="_blank">doBoard - Project management software <i class="fa fa-external-link" aria-hidden="true"></i></a></li> <li><a class="menu__item" href="/ssl-certificates/cheap-positivessl-certificate">SSL Certificates</a></li> <li><a class="menu__item" href="/uptime-monitoring">Uptime Monitoring</a></li> <script> document.addEventListener('DOMContentLoaded', function() { let currentUrl = window.location.pathname; let menuItems = document.querySelectorAll('.menu__item'); menuItems.forEach(function(item) { let menuItemUrl = item.getAttribute('href'); if (currentUrl === menuItemUrl) { item.classList.add('disabled'); item.setAttribute('rel', 'nofollow'); } }); }); </script> </ul> </div> </li> <li class="nav__item hide-desktop"> <a class="nav__link" href="/help/introduction">Getting started</a> </li> <li class="nav__item hidden"> <a class="nav__link" href="/cleantalk-anti-spam-firewall">SpamFireWall</a> </li> <li class="nav__item nav__item--main"> <a class="nav__link" href="/price-anti-spam">Pricing</a> </li> <li class="nav__item nav__item--last"> <a class="nav__link" href="/help">Help</a> </li> </ul> <ul class="nav__list nav__list--second hide-desktop"> <li class="nav__item hidden"> <a class="nav__link" href="https://cleantalk.org/blacklists">Find spam bot</a> </li> <li class="nav__item nav__item--second-order"><a class="nav__link nav__link--blue nav__link--mobile-center text--no-wrap" href="/my" rel="nofollow">Sign in</a></li> <li class="nav__item tablet-pr-16 tablet-pl-16"><a class="button button--submit button--h-40 button--side-p-16 text--no-wrap" href="/register" rel="nofollow">Create account</a></li> </ul> </div> </nav> <div class="nav__item nav__item--with-search not-inited" id="search_icon" data-dc-header-ref="search"> <div class="google-search__container"> <svg class="google-search__icon icon" id="google_search_run"> <use href="/webpack/dist/sprite.svg#icon-search"></use> </svg> <ul class="google-search" id="search_ul"> <li><div class="gcse-search" id="gcse-search" data-enableAutoComplete="false"></div> </li> </ul> <svg class="google-search__close hide-desktop size-24 icon" data-dc-header-ref="close"> <use href="/webpack/dist/sprite.svg#icon-close"></use> </svg> <button class="google-search__trigger" data-dc-header-ref="loader">Search</button> </div> </div> <ul class="nav__list nav__list--second hide-tablet"> <li class="nav__item hidden"> <a class="nav__link" href="https://cleantalk.org/blacklists">Find spam bot</a> </li> <li class="nav__item nav__item--second-order"><a class="nav__link nav__link--blue nav__link--mobile-center text--no-wrap" href="/my" rel="nofollow">Log in</a></li> <li class="nav__item tablet-pr-16 tablet-pl-16"><a class="button button--submit button--h-40 button--side-p-16 text--no-wrap" href="/register" rel="nofollow">Create account</a></li> </ul> </div> </header> <main class="main main--with-subnav" > <div class="subnav__container"> <div class="container--full-width container--mobile-scroll"> <ul class="subnav__list"> <li><a class="subnav__link" href="/help/introduction">Anti-Spam for WebSites</a></li> <li><a class="subnav__link" href="/blacklists">Spam IP/Email Database</a></li> <li><a class="subnav__link" href="/help/api-spam-check">Spam IP/Email Blacklists API</a></li> <li><a class="subnav__link" href="/my-ip/">My IP Info </a></li> </ul> </div> </div> <div class="container--full-width article"><ol class="breadcrumb__list" itemscope itemtype="https://schema.org/BreadcrumbList"><li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb__item"><a itemprop="item" href="/"><span itemprop="name">Home</span></a><meta itemprop="position" content="1"></li><li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb__item"><a itemprop="item" href="/help"><span itemprop="name">Help</span></a><meta itemprop="position" content="2"></li><li itemprop="itemListElement" itemscope itemtype="https://schema.org/ListItem" class="breadcrumb__item"><span itemprop="name">Spam Firewall by Cleantalk</span><meta itemprop="position" content="3"></li></ol><div class="main-grid main-grid--align-top main-grid--full-height" data-dc-component="article"><div class="main-grid__col--width-9/12 article__container" data-dc-article-ref="content"><article id="article" rel="article-53" class="article__content pb-36 tablet-pb-16"><h1 style="text-align: center;">CleanTalk SpamFireWall to Block Spam Traffic on Your Websites</h1> <p style="text-align: center;"> </p> <p>The CleanTalk SpamFireWall manages and filters all inbound HTTP traffic to protect websites from spam bots and to reduce the load on the web servers. SpamFireWall is an additional and free option in the CleanTalk anti-spam plugins. <br /><br />This solution to minimize in-house development and maintenance as much as possible while reducing the load on servers. You can be up and run within 60 seconds. Blocks of Spam Bots before it reaches your web server. <br /><br /></p> <div> <h2 style="text-align: center;">How It Works</h2> </div> <p>Unlike other anti-spam solutions, CleanTalk SpamFireWall is able to reduce the load placed on your existing web server. The reporting allows administrators to control the process and to be sure of the accuracy of the work. <br /><br /></p> <ul> <li>Our servers use the cloud-based technology of all websites to fight spam.</li> <li>The visitor enters to your website.</li> <li>HTTP request data is checked for the nearly 2 million of certain IP spambots</li> <li>If it is an active spam bot, it will get a blank page, if it is a visitor then it proceeds to the site. That is completely transparent to the visitors.</li> <li>Parameters are written to the log which can be viewed in the CleanTalk Dashboard.</li> </ul> <p> </p> <p style="text-align: center;"><picture> <source srcset="/images/SFW_an_en.webp" type="image/webp" /> <img title="SpamFireWall analytics in CleanTalk Dashboard" src="https://s3.amazonaws.com/cleantalk-screenshots/help/SFW_an_en.webp" alt="SpamFireWall analytics" width="900" height="459" /> </picture></p> <p style="text-align: center;"> </p> <div> <h2 style="text-align: center;">SpamFireWall Log</h2> </div> <p>All the CleanTalk SpamFireWall activity is being logged in the process of filtering. You will always have information about an IP address, date and time of each block spam attack.</p> <p> </p> <p style="text-align: center;"><picture> <source srcset="/images/SFW_log_en.webp" type="image/webp" /> <img title="SpamFireWall logs" src="https://s3.amazonaws.com/cleantalk-screenshots/help/SFW_log_en.webp" alt="SpamFireWall logs" width="900" height="455" /> </picture></p> <p style="text-align: center;"> </p> <h3 style="text-align: center;">CleanTalk SpamFireWall options</h3> <p style="text-align: center;"> </p> <p style="text-align: center;"> </p> <div> <h2 style="text-align: center;">How SpamFireWall Can Help Reduce the Load on Web Server</h2> </div> <p>Since spam bots are blocked before they have access to your site, it can significantly reduce the load on your server. SpamFireWall allows blocking the most active spam bots before they get access to a website. It prevents the loading of pages of the website by spam bots, so your web server doesn't need to perform all scripts on these pages. Also, it prevents scanning of pages of the website spambots. Therefore SpamFireWall significantly can reduce the load on your web server. <br /><br />CleanTalk offers a risk-free 7-day evaluation of its services. Be up and running in 60 seconds!</p> <p> </p> <p>To test if SpamFireWall is working just add /?sfw_test_ip=10.10.10.10. Example <strong><a href="http://www.yoursitename.domain/?sfw_test_ip=10.10.10.10" rel="nofollow">www.yoursitename.domain/?sfw_test_ip=10.10.10.10</a>  </strong>(you must see blocking screen)</p> <p>Attention! You should test SFW with incognito mode switched on. To enable incognito mode press Ctrl+Shift+N for Chrome, Opera and Safari browsers; press Ctrl+Shift+P for Firefox, Internet Explorer and Microsoft Edge. A full guide to enable Incognito mode is here: <a href="https://www.wikihow.com/Activate-Incognito-Mode" rel="nofollow">https://www.wikihow.com/Activate-Incognito-Mode</a></p> <p> </p> <div> <h2 style="text-align: center;">Anti-Flood and Anti-Crawler options</h2> </div> <p>In addition to checking IPs through SpamFireWall blacklists, these options help to protect the website from not blacklisted bots.</p> <p><strong>Anti-Flood</strong> - If any IP exceeds the number of requests per 1 minute which was set in the option it will get the CleanTalk blocking screen for 30 seconds.</p> <p><strong>Anti-Crawler</strong> - shows the CleanTalk blocking screen for bots detected by additional parameters.</p> <p>You can read more about these options <a title="Anti-flood and anti-crawler options" href="/help/anti-flood-and-anti-crawler" rel="nofollow">here</a>.</p> <p> </p> <p><a class="btn btn-lg btn-primary" href="/cleantalk-anti-spam-firewall">Learn more about Spam Firewall</a>  or <a class="button --blue create_button" href="/register" rel="nofollow">Create an account</a></p> <div style="text-align: center;"> </div> <p> </p> <p> </p> <div class="row"> <div class="col-xs-12 col-sm-5 col-sm-offset-1 col-md-4 col-md-offset-2 text-center" style="margin-bottom: 1em;"><a class="btn btn-lg btn-primary col-xs-12" href="/register">Create an account</a></div> <div class="col-xs-12 col-sm-5 col-md-4 text-center"><a class="btn btn-lg btn-primary col-xs-12" href="/my">Your CleanTalk Dashboard</a></div> </div></article><div class="article__form pb-72 tablet-pb-28" data-dc-component="helpful"><script>window.twttr = (function(d, s, id) {var js, fjs = d.getElementsByTagName(s)[0],t = window.twttr || {};if (d.getElementById(id)) return t;js = d.createElement(s);js.id = id;js.src = "https://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, "script", "twitter-wjs"));let u = window.location.href;let t = 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