Invisible Anti-Spam & CAPTCHA vs BotBlocker Security – Complete security platform

BotBlocker Security is a complete security platform that blocks 99% of attacks before WordPress loads. Firewall, bot detection, rate limiting, CAPTCHA, 2FA, analytics, notifications, tools – one plugin replaces your entire security stack: no need for separate firewall, CAPTCHA, 2FA, and anti-spam plugins. No bloat, no monthly fees for core protection. 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. BotBlocker stops them at the door – then gives you the analytics, alerts, and tools to understand exactly what it blocked and why. Because BotBlocker intercepts traffic before themes and plugins run, it also shields vulnerabilities in your entire plugin and theme stack. Zero-days in contact form plugins, unpatched slider code, outdated e-commerce extensions – attackers never reach the vulnerable code. BotBlocker is your first and last line of defense, every day. Why site owners switch to BotBlocker Faster than the competition. Runs on early init through three interception layers, before themes and plugins load. Server load drops during attacks instead of spiking. Zero database queries for returning visitors – 11 pre-generated PHP files with SHA-256 integrity, loaded via native include. One plugin, full security stack. Firewall, CAPTCHA, 2FA, anti-spam, rate limiting, bot detection – BotBlocker covers virtually every security need a WordPress site has. Most users uninstall 2-3 separate plugins after switching. PRO adds malware scanning, security headers, speed optimization, and behavioral analysis – still one plugin. Smarter bot detection. 2,899 User-Agent signatures – largest blacklist among WordPress plugins – plus 2,800+ additional bot signatures. 13 header checks including AdBlock detection, incognito mode detection, Canvas/WebGL fingerprinting, and device API verification. Anti-detect scoring with 9 weighted signals catches headless Chrome, Puppeteer, Selenium, and PhantomJS even when they spoof user-agent strings. Smarter CAPTCHA. 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. Honest free version. Full firewall, all 9 CAPTCHA modes, full 2FA, full logging, full Multisite, Redis/Memcached, shortcodes, command palette, Telegram alerts, visual analytics, 15 diagnostic tools. No nag screens, no crippled features. Privacy-first. No visitor data leaves your server. GDPR and CCPA compliant out of the box. Works with everything. Cloudflare, WP Rocket, LiteSpeed, WooCommerce, Elementor, multisite, IPv6, PHP 7.4 to 8.5. 🛡️ Core Firewall (Free) Three-Layer Architecture – intercepts traffic at wp-config.php (before WordPress), MU-plugin phase, and main shield. Known threats are blocked before WordPress, plugins, or themes load – saving 30-100ms and 5-20MB RAM per blocked request. Zero-day attacks on other plugins never reach the vulnerable code. Web Application Firewall (WAF) with real-time rule updates via the BotBlocker Threat Defense Feed 2,899 User-Agent + 2,800+ bot signatures – largest blacklist among WordPress plugins, covering Scrapy, Selenium, Puppeteer, PhantomJS, curl, wget, Python, Java, Perl, SQL injection tools Brute force protection with progressive lockouts – 5 attempts per 15 minutes, escalating bans Rate Limiting – sliding window velocity per IP. 30 req/min triggers CAPTCHA; 50/min blocks IP for 10 min. Subnet aggregation catches distributed attacks. Floor protection prevents false positives. Anti-spam for comments, registration, contact forms XML-RPC and REST API locked down by default with allowlist for trusted services HTTP method-level hardening – CONNECT and TRACE blocked (XST attack prevention). OPTIONS handled for CORS preflight. Fake crawler detection via FCrDNS (dual-direction DNS verification), ASN tokens, and published IP ranges – 95% effective, impossible to spoof without controlling the provider’s DNS zone. LLM / AI crawler management – allow or block GPTBot, ChatGPT-User, ClaudeBot, PerplexityBot, Bytespider via CIDR-verified IP ranges (1,435 synced from cloud). Country, ASN, IP range, User-Agent, Referer blocking rules with instant enforcement. ASN database: 3.6M verified records. Geo-blocking with visual country selector and import/export. Cloudflare-aware real-IP resolution and origin bypass protection TLS fingerprinting (JA3/JA4) – detects bots by TLS handshake signature, cross-validates against User-Agent. 189 signatures. Opt-in, requires server module. RKN (Roskomnadzor) blocking – 852 CIDR ranges, cloud-synced, auto-updated with self-healing tamper recovery Full IPv6 support – separate tables and logic for IPv4 and IPv6 Live traffic monitor with attack map, country, ASN, device, browser, block reason Built-in caching via Redis and Memcached – free, auto-disable on connection failure 🔍 Bot Detection & Anti-Detect (Free) 13 HTTP header checks run on every visitor, catching bots others miss: Empty User-Agent / UA Anomalies / Empty Accept-Language PTR/DNS Mismatch – forward/reverse DNS mismatch, impossible to fake Geo vs Language Mismatch – language claimed differs from visitor’s country Incognito/Private Mode detection AdBlock/uBlock detection in visitor’s browser Canvas & WebGL Fingerprinting – JS consistency verification WhatsApp Preview / OPTIONS Preflight – legitimate traffic whitelisted Anti-Detect Challenge Page activates when header checks raise suspicion – silent browser fingerprinting before any CAPTCHA appears: 9 weighted signals: navigator (×2), fake plugins (×3), font rendering (×2), WebGL (×2), Chromium properties (×3), JS jitter, touch events (×2), language (×3), incognito (×2) Critical signal combinations trigger immediate block Cookie capability test + sessionStorage retry counter HMAC-signed responses resist DDoS provider interference Circuit Breaker: 3 failures → 30-second cooldown → auto-retry CAPTCHA appears only if auto-verification fails 🎯 CAPTCHA System – All 9 Modes Free 9 CAPTCHA modes, all free: Silent Auto-Verify (recommended – zero clicks, silent JS fingerprint check), Simple Button, Color Buttons, Image CAPTCHA (5 packs: Eagle, Horse, Raccoon, Dog, Cat), reCAPTCHA v2 (+ Button), Dynamic Shapes (60fps Canvas, 25 combinations), Dynamic Digits, Hold Button (hold in the green zone). Hybrid Mode – internal CAPTCHA + invisible reCAPTCHA v3, two-layer defense DDoS Resilience Mode – HMAC-signed responses prevent forged challenge bypass Session Token Verification – cookie-less fingerprint for restricted hosting CAPTCHA Diagnostics – failure reason codes (token decrypt, transient, hash, mode mismatch) Image Delivery: Inline Base64 (single request, recommended) or Separate Requests (cache-friendly) 🔒 Login Security & 2FA (Free) Two-Factor Authentication (Google Authenticator, Authy, 1Password, Bitwarden) – TOTP, 10 backup codes 9 CAPTCHA modes on login, registration, lost password, and custom forms Hybrid Mode – internal CAPTCHA + reCAPTCHA v3 two-layer invisible defense on login Hide login URL (PRO) Configurable lockout escalation – failed CAPTCHA = short ban, repeat = 24-hour ban 💳 Payment Gateway Bypass (Free) 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, YooKassa, LiqPay and more), plus form plugin webhooks (Contact Form 7, WPForms, Gravity Forms, Ninja Forms, Fluent Forms). Four detection layers – 198 path patterns, 227 query keys, 360 action names, 114 signature headers – ensure zero false positives. Webhooks, IPN callbacks, and payment notifications never get blocked. 📊 Visibility & Control (Free) Visual dashboard – KPI cards (Requests, Blocked, Search engines passed, Protection score), hourly bar chart, donut charts (Hosting, Device, Browser, OS) Dashboard social proof card – live WordPress.org rating, installs count, ratings, link to WP.org (cached 12h) Inline IP rule widget – add IP allow/block rules via AJAX. Bulk import with 4 one-click buttons (IPv4/IPv6 whitelist/blacklist) Protection Status Checklist – per-feature toggles with “Enable remaining” bulk action Health Score gauge – 44 parameters, 3 categories, 5 levels from Critical (<25) to Secure (≥85), real-time updates 3 security presets – Light, Strong, Full – one-click configuration. Plus Default for new installs Setup Wizard – 8 steps, under 5 minutes ⌘K Command Palette – Ctrl+K / ⌘K on any admin page to search every setting, tab, and action. 30+ quick-action shortcuts. Near-zero-click configuration Interactive analytics – 8 KPI metrics, donut charts, traffic line chart, world map, top IPs and countries rankings 55 diagnostic event codes across 12 log categories – exact block reason for every decision Detailed event log – IP, country, ASN, User-Agent, browser, OS, device, exact block reason 17 interface languages – English, Deutsch, Español, Français, Polski, Русский, Українська, العربية, עברית, Italiano, 日本語, 한국어, Nederlands, Português, Svenska, Türkçe, 中文 + POT Admin page header bar – “Blocked today: X · Total: Y” on every admin page Admin bar toolbar node – protection status + Dashboard + Settings links Configurable retention with timezone/DST awareness, Daily Summary with incremental aggregation X-Robots-Tag control – SEO directives (noindex, nofollow, noarchive, nosnippet, noimageindex, notranslate, unavailable_after) on blocked/challenge pages – no search engine indexing of security barriers Clean uninstall – drops 17 tables, 40+ options, 22+ transients, 12 cron hooks, MU-plugin files, uploads/botblocker/. Departure feedback dialog. Zero leftover data 📬 Notifications & Alerts (Free) Email reports – daily / twice-weekly / monthly security summaries. Critical server load warnings and Cloud API expiry alerts. Telegram Bot integration (add-on) – weekly security summaries via @BotFather: requests, allowed, blocked, suspicious, search/fake bots, timezone, protection mode, security score, block rate. Connection test button. Add-ons → Telegram Notifications. Admin Dashboard Alerts (8 types) – cloud lost, missing runtime files, API expired, hits exhausted, ASN/addon update failed, addon incompatible, cache incompatibility 🧩 Shortcodes & Developer Tools (Free) 20 shortcodes for frontend dashboards, client portals, and status pages. * WP Connectors (WordPress 6.7+) – native WordPress Connector on the Connections admin page * Custom verification endpoint (bbcs-verify) – decoupled from permalink structure * WordPress Admin → Tools → Site Health → Info integration * Plugin update changelog injection – changelog displayed in the plugin update screen * Floating support widget – submit support tickets from dashboard without leaving site 🔧 Tools & Diagnostics (Free) 15 maintenance and diagnostic actions built into the admin panel: Export Data & Settings Full JSON backup of settings, rules, IP lists Import Data & Settings Restore from JSON backup Reinstall Database Factory-reset all BotBlocker tables Repair & Optimize DB WordPress database repair and optimization Clear All Visitor Data Purge hits, counters, and statistics Clear Transients Remove expired WordPress transients Update ASN Database Download latest 3.6M-record ASN geolocation database Update RU-Gov List Download latest 852-range RKN CIDR blocklist Sync LLM Providers Refresh 1,435 AI crawler IP ranges from cloud Clear Visitor Cookies Reset all BotBlocker cookies – forces re-verification Reset URL Rewrite Rules Fix 404 errors after permalink changes Clear Object Cache Flush WordPress + Redis/Memcached caches Site Health Open WordPress Site Health diagnostic Clear Debug Log / Download Debug Log Purge or download wp-content/debug.log 🚀 PRO Adds (Premium / Pro / Ultimate) Cloud Threat Intelligence – 5M+ attack IPs cross-checked globally. Zero-day behavioral and heuristic detection catches unknown attack patterns before signatures exist. VPN, Tor, proxy, ASN, hosting reputation checks. Early Init Mode – filtering before WordPress Core loads via wp-config.php boot code. Saves 30-100ms and 5-20MB RAM per blocked request. Multisite-aware, auto-disables if Cloud API inactive. Self-healing runtime files. Hide Login URL – custom admin URL slug. Four behaviors on default URL: 403, 404, home redirect, custom redirect. Reserved slug detection prevents page conflicts. Security Headers – MU-plugin deployment before plugins load. HSTS, CSP with custom domain whitelist, X-Frame-Options, X-Content-Type-Options, Permissions-Policy. Auto-detects reCAPTCHA Google + BotBlocker API domains in CSP. Speed Up WordPress – 14 frontend and server optimizations: disable emojis, jQuery Migrate, dashicons, global styles, embeds, RSS feeds, XML-RPC, hide WP version, shortlinks, self-pingbacks. Malware Scanner – 25+ detection patterns: eval() chains, base64 obfuscation, injected scripts, webshell markers. Deobfuscation preprocessor. Scans files (core, plugins, themes, uploads, custom paths) + database (posts, wp_options, users, cron). Truth Source comparator. Scheduled background scanning (hourly to 5 days). Severity: Critical to Info. Confidence: Review to Confirmed. HTTPS Protocol – HTTP→HTTPS 301 redirect. Mixed content auto-fix via output buffering. SSL detection behind 7 proxy headers (Cloudflare, load balancers). Cookie Alert – lightweight first-party cookie consent banner. Custom text, policy link, button label, position, theme, custom CSS. WP accessibility: aria-label, role attributes. 1-year cookie lifetime. Behavioral Analysis Engine – 3-layer AI bot detection. Free: RPM velocity + subnet pressure. Pro: multi-signal scoring (velocity, URI diversity, session depth, timing, referer consistency). Reputation: IP/subnet tracking with lazy decay. 3 quick presets. Cron Jobs – advanced WordPress cron management, monitoring, and debugging Truth Source – file integrity verification against known-good WordPress core, plugin, theme references. Detects modified, added, missing files. Per-file and wildcard ignores. Scheduled background scanning. XMLRPC Tunnel – secure XML-RPC via IP-allowlisted endpoints. IPv4/IPv6/CIDR/wildcard entry formats. Multi-header real-IP resolution. Auto-block non-allowlisted access. Priority support – 24-hour response time Four plans to match your traffic: Premium ($12/month, 25k cloud checks), Pro ($50/month, 100k cloud checks), Ultimate ($100/month, 250k cloud checks + emergency 24h support). Annual billing includes 1 month free. 30-day refund policy. Licensed per domain via Freemius. Compare plans → ⚡ Performance & Compatibility Zero database queries for returning visitors – 11 runtime PHP files with SHA-256 integrity, loaded via include Measured overhead: +3-15ms TTFB for cached visitors, +50-200ms first-time PTR lookups, +2-4MB memory 100+ configurable settings without affecting performance Redis and Memcached support – free, auto-disables gracefully on connection failure Cache plugin compatibility – automatic DONOTCACHEPAGE and cache-bypass headers (Cache-Control: no-store, X-LiteSpeed-Cache-Control: no-cache, X-Accel-Expires: 0, CDN-Cache-Control: no-store, private, Surrogate-Control: no-store, max-age=0) covering PHP caches, Nginx, CDN edge, and surrogate caches in one pass. Works with WP Super Cache, W3 Total Cache, WP Rocket, LiteSpeed, Hummingbird, WP Fastest Cache, Cache Enabler, Swift Performance. CDN and WAF compatibility – Cloudflare, Sucuri, Incapsula, AWS CloudFront, Fastly, KeyCDN, StackPath. Multi-header real-IP resolution (CF-Connecting-IP, X-Forwarded-For, X-Real-IP) DDoS Protection Compatibility – auto-detects JS-challenges from DDoS-Guard, Stormwall, Qrator. HMAC-signed AJAX responses, Circuit Breaker with retry/backoff. The only WordPress plugin that works correctly behind aggressive DDoS protection without manual configuration. Fatal Error Hive Mode – during PHP fatal errors from other plugins or themes, renders an emergency page instead of a white screen, preserving the security barrier. Multisite Support – network activation, per-site data, settings, cleanup. Free on all plans. PHP 7.4 – 8.5, tested across 7 versions. WordPress 5.1 – 7.0+. Linux and Windows. 50+ OS versions detected – Windows 95–11, macOS, Android, iOS, Chrome OS, Linux distros, HarmonyOS, Fire OS, KaiOS, Tizen, FreeBSD, gaming consoles 50+ browsers identified – Opera, Edge, Vivaldi, Brave, Samsung Internet, UC Browser, Yandex, DuckDuckGo, Tor, Headless Chrome, Lynx/ELinks, and more GDPR and CCPA compliant – no PII, technical parameters only, Legitimate Interest basis (Art. 6(1)(f))

Spam protection your visitors never see. No image grids, no “I’m not a robot” checkbox, no puzzles, nothing to click. Your visitors just hit Send — while their browser silently solves a tiny cryptographic challenge (proof-of-work) in a few milliseconds. Real humans never notice. Mass-spam bots either fail the challenge or have to burn so much computing power per message that spamming your site stops being worth it. Every form, out of the box. WordPress logins, registrations and comments, WooCommerce checkout and reviews, and virtually every form plugin — Contact Form 7, Elementor Pro Forms, WPForms, Gravity Forms, Ninja Forms, Fluent Forms, Formidable and dozens more (full list below). One plugin protects all of them, and the most popular builders are detected and configured automatically on activation. Truly universal — not a list of integrations Most anti-spam tools protect only the form plugins they ship an integration for. If your builder is not on their list — or you use a hand-coded form, a theme’s built-in form, or three different builders on one site — you are on your own. This plugin works differently: it recognizes submissions by their signature — the characteristic fields and actions of the request itself — instead of hooking into specific form plugins. That is why it covers any form: Popular builders are recognized automatically: their signatures ship with the plugin and are pre-configured on activation. Everything else — custom-coded forms, exotic builders, legacy themes — you teach the spam check yourself in under a minute: turn on direct analysis mode, submit the form once, click save. Done. No code, no waiting for the developer to add your builder. And because no integration code is involved, nothing breaks when your form builder updates. In practice that solves two everyday problems: Real sites mix. A typical site has comments, a contact form from one builder, a newsletter signup from another, WooCommerce reviews — protecting each with its own anti-spam solution means more plugins, more settings pages, more things that can conflict. Here, one plugin covers the whole site. Designers and agencies standardize. If you build sites for clients, you can install the same proven plugin on every project — no matter which form stack the client uses (or switches to later). One tool to know, one place to look when something needs attention. Why “invisible” wins Every CAPTCHA interaction costs you real visitors: an extra click here, an unreadable image there, “select all traffic lights” on a phone screen — and the contact request or sale is gone. This plugin flips the deal: instead of making humans prove themselves, it makes the device pay. The visitor’s browser proves it is a real, JavaScript-running client by doing a moment of invisible computation. Zero friction for people, real costs for bots. Self-contained and featherweight Everything runs on your own web server — there is no external service in the loop. That is not just a privacy nicety, it is an operational one: Nothing external can fail. No third-party API whose outage, rate limit or latency silently breaks your forms. Your spam protection is exactly as available as your site. Nothing external slows you down. No remote scripts, no extra DNS lookups or connections — your PageSpeed and Core Web Vitals stay untouched. Tiny footprint. A few kilobytes of JavaScript and lean server code; runs fine on shared hosting, staging environments and even intranets without internet access. Why not just use … Google reCAPTCHA, hCaptcha or Turnstile? They require an account and API keys, load scripts from external servers (hello, consent banners) and still challenge real users when in doubt. This plugin needs no keys, makes no external requests and never challenges anyone. Akismet? Sends the content of every submission to an external service for analysis, and commercial sites need a subscription. Here, everything stays on your own server. Honeypot fields and time checks? Modern bots skip honeypots routinely, and browser autofill loves to fill them by accident. Proof-of-work attacks the economics of spam instead of playing hide-and-seek. And they all share one structural limit: they protect the forms they ship an integration for. This plugin protects the forms you actually have (see “Truly universal” above). Key features Invisible — zero user interaction, ever Protects everything: logins, registrations, comments, WooCommerce, every form builder — even hand-coded custom forms No account, no API keys, no external services — install and you are done Brute-force protection for logins, with optional Fail2Ban log support Adaptive under-attack mode: the challenge automatically gets harder for everyone while a spam wave is running, and relaxes afterwards Your choice per site: block spam, deliver it flagged, or just collect it in a spam inbox and watch Teach it live: unrecognized custom form? Direct analysis mode adds it with one click, straight from the live page Lightweight: a few KB of JavaScript, no render-blocking, no layout shift Privacy-friendly by design: no cookies, no sessions, no tracking, no data leaves your server, IP addresses are only stored as hashes — GDPR/DSGVO/RGPD-friendly without a consent banner Free Setup Guide Works with WordPress: Login, Registration, Password Reset, Comments WooCommerce: Checkout, Login, Registration, Password Reset, Comments, Product Reviews Form and page builders: Elementor Pro Forms, Contact Form 7, Fluent Forms, Jetpack Forms, Divi Forms, WPForms, Forminator, Thrive Architect & Thrive Apprentice, Gravity Forms, Formidable Forms, Mailchimp for WordPress Forms, BuddyPress Registration Form, bbPress Create Topic & Reply Forms, Ultimate Member Forms, wpDiscuz Custom Comments Form, Easy Digital Downloads Forms, Paid Memberships Pro Forms, MemberPress Forms, WP-Members Forms, WP User Frontend Forms, CheckoutWC & Flux Checkout, Ninja Forms, Everest Forms, WS Forms, Quform, Otter Blocks, Typeform, NEX-Forms, Bit Form, Form Maker, Funnelforms, Mailjet, Jotform, Page Builder, Metform, Calculated Fields Form, JetFormBuilder, weForms, Responsive Contact Form Builder, Zoho Forms, Smart Forms, Kali Forms, Happyforms, ApplyOnline, Subscribe Forms, FormCraft, Advanced Forms, CRM Perks Forms, Tripetto, Formstack, BuddyForms, vcita, Easy Form Builder, SimpleForm Anything not on the list can be added in minutes with the built-in analysis modes — no code required.