Yevhen Leonidov

Aleksander Kinakh

Andrii Lukashevych

<p><strong>BotBlocker Security blocks 99% of automated attacks before WordPress even loads.</strong> No bloat, no slowdowns, no monthly fees for core protection.</p>
<p>If your site is hit by login brute force, spam comments, fake Googlebots, content scrapers, or XML-RPC floods, you are not alone: bots generate over 47% of all web traffic. Most security plugins react after WordPress boots, wasting CPU and memory on every bad request. <strong>BotBlocker stops them at the door.</strong></p>
<h4>Why site owners switch to BotBlocker</h4>
<ul>
<li><strong>Faster than the competition.</strong> Runs on early init through three interception layers, before themes and plugins load. Server load drops during attacks instead of spiking.</li>
<li><strong>Smarter CAPTCHA.</strong> 9 modes including Silent Auto-Verify – zero clicks for humans, hard wall for bots. Proprietary CAPTCHAs defeat AI-based solvers that crack reCAPTCHA for $2-3 per 1 000.</li>
<li><strong>Honest free version.</strong> Full firewall, all 9 CAPTCHA modes, full 2FA, full logging, full Multisite support. No nag screens, no crippled features.</li>
<li><strong>Privacy-first.</strong> No visitor data leaves your server. GDPR and CCPA compliant out of the box.</li>
<li><strong>Works with everything.</strong> Cloudflare, WP Rocket, LiteSpeed, WooCommerce, Elementor, multisite, IPv6, PHP 7.4 to 8.5.</li>
</ul>
<h4>🛡️ Core Firewall (Free)</h4>
<ul>
<li><strong>Three-Layer Architecture</strong> – intercepts traffic at wp-config.php (before WordPress), MU-plugin phase, and main shield. The first layer blocks known threats without loading WordPress at all, saving 30-100ms and 5-20MB RAM per blocked request.</li>
<li><strong>Web Application Firewall (WAF)</strong> with real-time rule updates via the BotBlocker Threat Defense Feed</li>
<li><strong>2 899 User-Agent signatures</strong> – largest blacklist among WordPress plugins – covering Scrapy, Selenium, Puppeteer, PhantomJS, curl, wget, Python, Java, Perl, and SQL injection tools</li>
<li><strong>Brute force protection</strong> with progressive lockouts – 5 attempts per 15 minutes, escalating bans for repeat offenders</li>
<li><strong>Anti-spam</strong> for comments, registration, contact forms – spammers blocked before they connect</li>
<li><strong>XML-RPC and REST API</strong> locked down by default with allowlist for trusted services</li>
<li><strong>Fake crawler detection</strong> via FCrDNS (dual-direction DNS verification), ASN tokens, and published IP ranges – 95% effective, impossible to spoof without controlling the provider’s DNS zone</li>
<li><strong>LLM / AI crawler management</strong> – allow or block GPTBot, ChatGPT-User, ClaudeBot, PerplexityBot, Bytespider via CIDR-verified IP ranges. Trusted crawlers verified, impersonators blocked.</li>
<li><strong>Country, ASN, IP range, User-Agent, Referer</strong> blocking rules with instant enforcement</li>
<li><strong>Cloudflare-aware</strong> real-IP resolution and origin bypass protection</li>
<li><strong>Full IPv6 support</strong> – separate tables and logic for IPv4 and IPv6, every feature works with both</li>
<li><strong>Live traffic monitor</strong> with attack map, country, ASN, device, browser, and exact block reason for every request</li>
<li><strong>Built-in caching</strong> via Redis and Memcached – free, auto-disable on connection failure</li>
</ul>
<h4>🔒 Login Security & 2FA (Free)</h4>
<ul>
<li><strong>Two-Factor Authentication</strong> compatible with Google Authenticator, Authy, 1Password, Bitwarden – TOTP standard with 10 backup codes</li>
<li><strong>9 CAPTCHA modes</strong>: Silent Auto-Verify, Single Button, Color CAPTCHA, Images CAPTCHA, Shapes CAPTCHA (60fps Canvas), Digits CAPTCHA, Hold Button CAPTCHA, plus Google reCAPTCHA v2 and v3</li>
<li><strong>Hybrid Mode</strong> – combine any internal CAPTCHA with reCAPTCHA v3 for two-layer invisible defense</li>
<li><strong>Hide login URL</strong> <em>(PRO)</em></li>
<li><strong>Configurable lockout durations</strong> with escalation for repeat offenders – failed CAPTCHA triggers short ban, repeated failure triggers 24-hour ban</li>
</ul>
<h4>💳 Payment Gateway Bypass (Free)</h4>
<p>Auto-detects 25+ e-commerce platforms (WooCommerce, Easy Digital Downloads, SureCart, MemberPress, Paid Memberships Pro, Give, Dokan, CartFlows, FunnelKit, and more) and 150+ payment providers (Stripe, PayPal, Mollie, Adyen, Braintree, Square, Razorpay, Klarna, Paddle, Authorize.Net, 2Checkout, YooKassa, LiqPay, and more). <strong>Webhooks, IPN callbacks, and payment notifications never get blocked.</strong> Four detection layers ensure zero false positives on payment traffic.</p>
<h4>📊 Visibility & Control (Free)</h4>
<ul>
<li>Visual dashboard with attack map, top offenders, blocked-vs-allowed ratio, world traffic map</li>
<li>Detailed event log with IP, country, ASN, User-Agent, and exact block reason – 54 unique event codes</li>
<li>Health Score gauge – 42 parameters across 3 categories, 5 security levels from Critical to Secure</li>
<li>3 security presets – Light, Strong, Full – one-click configuration</li>
<li>Setup Wizard – 8 steps from welcome to test attack, setup in under 5 minutes</li>
<li>8 interface languages – English, Deutsch, Español, Français, Polski, Русский, Українська + POT template</li>
<li>Configurable retention with timezone and DST awareness</li>
<li>Clean uninstall – drops all 16 tables, removes 40+ options, clears cron hooks. Zero leftover data.</li>
</ul>
<h4>🚀 PRO Adds (Premium / Pro / Ultimate)</h4>
<ul>
<li>Real-time cloud threat intelligence cross-checked against global databases – 5M+ attack IPs, hundreds of thousands of bot signatures, updated daily</li>
<li>Zero-day behavioral and heuristic detection – catches unknown attack patterns before signatures exist</li>
<li>VPN, Tor, proxy, ASN, and hosting reputation checks</li>
<li>Early Init Mode – filtering before WordPress Core loads, maximum resource savings during attacks</li>
<li>Hide Login URL addon – custom admin URL, hardened wp-login.php protection</li>
<li>Security Headers addon – HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy, X-Content-Type-Options</li>
<li>Speed Up WordPress addon – 14 frontend and server optimizations</li>
<li>Malware Scanner addon – 25 patterns scanning files + 7 database tables, detects webshells, eval injections, base64-obfuscated code hidden in wp_options and post_content</li>
<li>Priority support – 24-hour response time</li>
</ul>
<p>Four plans to match your traffic: <strong>Premium</strong> ($12/month, 25k cloud checks), <strong>Pro</strong> ($50/month, 100k cloud checks), <strong>Ultimate</strong> ($100/month, 250k cloud checks + emergency 24h support). Annual billing includes 1 month free. 30-day refund policy. Licensed per domain, billed securely via Freemius.</p>
<p><a href="https://botblocker.top/pricing/" rel="nofollow ugc">Compare plans <span aria-hidden="true" class="wp-exclude-emoji">→</span></a></p>
<h4>⚡ Performance & Compatibility</h4>
<ul>
<li><strong>Zero database queries</strong> for returning visitors – 9 runtime PHP files with SHA-256 integrity signatures, loaded via <code>include</code></li>
<li>Measured overhead: <strong>+3-15ms</strong> TTFB for cached visitors, <strong>+50-200ms</strong> for first-time PTR lookups, <strong>+2-4MB</strong> memory</li>
<li>Redis and Memcached support – free, auto-disables gracefully on connection failure</li>
<li><strong>Cache plugin compatibility</strong> – automatic <code>DONOTCACHEPAGE</code> and <code>Cache-Control: no-store</code> on verification pages. Works with WP Super Cache, W3 Total Cache, WP Rocket, LiteSpeed Cache, Hummingbird, WP Fastest Cache, Cache Enabler</li>
<li><strong>CDN and WAF compatibility</strong> – Cloudflare, Sucuri, Incapsula, AWS CloudFront, Fastly, KeyCDN, StackPath. Multi-header real-IP resolution (CF-Connecting-IP, X-Forwarded-For, X-Real-IP)</li>
<li><strong>DDoS Protection Compatibility</strong> – automatic detection of JS-challenges from DDoS-Guard, Stormwall, Qrator. HMAC-signed AJAX responses, Circuit Breaker with automatic retry and backoff. BotBlocker is the only WordPress plugin that works correctly behind aggressive DDoS protection without manual configuration.</li>
<li><strong>Multisite Support</strong> – network activation, per-site data, per-site cleanup. Free on all plans.</li>
<li><strong>PHP 7.4 – 8.5</strong> – tested across 7 PHP versions. <strong>WordPress 5.0 – 7.0+</strong>. Linux and Windows.</li>
<li>GDPR and CCPA compliant – no PII collected, technical parameters only, Legitimate Interest basis (Art. 6(1)(f))</li>
</ul>
<h4>🤝 Trusted by</h4>
<ul>
<li>3 000+ active installations</li>
<li>Translated into 8 languages</li>
<li>Tested up to WordPress 7.0 and PHP 8.5</li>
<li>Developed and maintained by GLOBUS.studio</li>
</ul>
<blockquote>
<p>“Replaced two security plugins and a CAPTCHA plugin with one. Site is faster and the spam stopped overnight.” – WordPress.org user</p>
</blockquote>
<h3>Privacy</h3>
<p>BotBlocker Security does <strong>not</strong> collect or process personal data of your visitors. All cloud analysis is performed on technical parameters only (IP, headers, User-Agent). No personally identifiable information is collected, stored, or transmitted to any external service.</p>
<h3>Support and Documentation</h3>
<ul>
<li>Product site: <a href="https://botblocker.top/products/" rel="nofollow ugc">https://botblocker.top/products/</a></li>
<li>Pricing and PRO plans: <a href="https://botblocker.top/pricing/" rel="nofollow ugc">https://botblocker.top/pricing/</a></li>
<li>Documentation: <a href="https://botblocker.top/docs/" rel="nofollow ugc">https://botblocker.top/docs/</a></li>
<li>Contact/support: <a href="https://botblocker.top/contacts/" rel="nofollow ugc">https://botblocker.top/contacts/</a></li>
<li>Community: <a href="https://botblocker.top/community/" rel="nofollow ugc">https://botblocker.top/community/</a></li>
</ul>
<h3>License</h3>
<p>This plugin is licensed under the GPLv2 or later. See LICENSE.txt for details.</p>
<h3>Credits & Authors</h3>
<p>BotBlocker Security is developed and maintained by GLOBUS.studio.</p>
<ul>
<li>Concept, architecture & code – Yevhen Leonidov: <a href="https://leonidov.dev/" rel="nofollow ugc">https://leonidov.dev/</a></li>
<li>Code, code review – Andrii Lukashevych</li>
<li>Code, translations – Aleksandr Kinakh</li>
</ul>
<p><strong>BotBlocker Security – The first line of defense for your WordPress site.</strong></p>


BotBlocker Security – Firewall & Bot Protection

Stop bots, brute force, spam, and fake crawlers before they reach WordPress. Three-layer firewall, 9 CAPTCHAs, FCrDNS, 2FA. Setup in 60 seconds.

TechGasp

pedroalves

<p><strong>Spam Master</strong> delivers powerful, real-time firewall and anti-spam protection for WordPress. Instantly block spam bots, brute force logins, fake registrations, comment spam, and malicious contact form submissions. Spam Master uses live RBL (real-time block lists) with millions of updated threats to keep your site secure.</p>
<p><strong>Key Features:</strong><br />
– Real-Time Spam Firewall (RBL/Blacklist)<br />
– Anti-bot, anti-flood, anti-crawler, brute force & DDoS protection<br />
– Compatible with WooCommerce, Contact Form 7, WPForms, BuddyPress, Gravity Forms, bbPress, Jetpack, Akismet, Ninja Forms, MailChimp, S2Member, MailPoet, Formidable, ConvertKit, ActiveCampaign, and any custom plugin or theme<br />
– No CAPTCHA, No JavaScript, No AJAX — fast and SEO-friendly<br />
– GDPR compliant & privacy-focused<br />
– Modular loading for optimal speed<br />
– IPv6 & PHP 8 ready</p>
<p><strong>Why Choose Spam Master?</strong><br />
– Blocks spam before it reaches your site<br />
– No annoying CAPTCHA or quizzes<br />
– Advanced honeypot fields for registrations, logins, comments, forms<br />
– Constant learning from millions of spam sources<br />
– Professional security logging, analytics & statistics<br />
– Whitelist management (safe emails/IPs exempted)<br />
– Customizable block messages</p>
<p><em>For full features, demo, docs, and support visit <a href="https://www.spammaster.org/" rel="nofollow ugc">Spam Master website</a>.</em></p>
<h4>Plugin Integrations</h4>
<ul>
<li><strong>WooCommerce:</strong> Block spam/fraudulent registrations, custom signatures</li>
<li><strong>BuddyPress:</strong> Stops spam registrations/logins, custom signatures</li>
<li><strong>Contact Form 7 & WPForms:</strong> Real-time scanning, honeypot & antibot protection</li>
<li><strong>Gravity Forms:</strong> Scans data before submission</li>
<li><strong>Akismet Compatibility:</strong> Marks missed spam</li>
<li><strong>Custom Forms/Themes:</strong> Works with any registration, comment, or contact form</li>
</ul>
<h4>Fast, Secure, SEO-Friendly</h4>
<p>Spam Master loads only what’s needed for security, keeping your site fast and optimized for Google PageSpeed and Lighthouse.</p>
<h4>How It Works</h4>
<p>Spam Master uses updated real-time block lists (RBL), spam buffer tech (for local speed), advanced honeypots, and learning heuristics to block millions of threats instantly.</p>
<h3>Privacy & GDPR</h3>
<p>Spam Master is developed by an EU company and fully complies with GDPR. No data is shared with third parties. <a href="https://www.spammaster.org/privacy-policy/" rel="nofollow ugc">Privacy Policy</a></p>
<h3>Try Online Demo</h3>
<ul>
<li><a href="https://www.spammaster.org/" rel="nofollow ugc">Spam Master Demo</a></li>
<li><a href="https://www.spammaster.org/search-threat/" rel="nofollow ugc">Search Threat Database</a></li>
<li><a href="https://www.spammaster.org/rbl-servers-status/" rel="nofollow ugc">RBL Cluster Status</a></li>
</ul>


Spam Master


I've tried to use this plugin for several years, but frequently something would go wrong and the author would tell me that there was nothing wrong, until I literally gave them a patch to fix the problem. This happened several times over the years.



More recently, they added a "firewall" feature which degrades performance and increases load on a server (because apparently a firewall should send blocked users a redirect to itself, so you then get 20+ requests to WP for a blocked page, instead of 1 successful request). Furthermore, my clients kept getting many reports from users that the website was inaccessible due to this "firewall".



After contacting the author, they didn't want to add anything in the UI to disable it, but they agreed to add a DB setting that would allow me to disable it. Another release a few weeks later, and they removed that option again, and then pretended we never agreed anything and refused to allow this dumb feature to be disabled.



So, after many years, I've completely given up on this, it will cause all sorts of problems over time and I can't recommend it at all anymore. All I wanted was a simple anti-spam plugin that worked without inline JS.


Includes a mandatory firewall that will block your users

Real-time firewall and anti-spam for WordPress. Block spam bots, comments, logins & registrations. No CAPTCHA, no slowdown.

BotBlocker Security – Firewall & Bot Protection vs Spam Master