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OpenBotAuth helps publishers control automated access from AI crawlers and agents. It verifies requests using RFC 9421 HTTP Message Signatures (via a configurable verifier) and applies per-site or per-post policies like allow, deny, teaser previews, and 402 payment-required responses. It also publishes AI-friendly endpoints like llms.txt, a JSON feed, and per-post Markdown.
Instead of blocking all bots or allowing unrestricted access, you can:
<ul>
<li>See AI bot traffic – Local-only analytics showing which bots are crawling your site</li>
<li>Verify bot identity using cryptographic signatures (RFC 9421)</li>
<li>Show teasers to unverified bots (first N words)</li>
<li>Rate limit bot access per agent</li>
<li>Whitelist/blacklist specific bots</li>
</ul>
<h4>Key Features</h4>
<ul>
<li>Bot Traffic Analytics – See which AI bots (GPTBot, ClaudeBot, PerplexityBot, etc.) are visiting your site</li>
<li>Signature Verification – Verifies RFC 9421 HTTP Message Signatures using Ed25519 cryptography</li>
<li>Content Teasers – Show first N words to unverified bots with customizable per-post settings</li>
<li>Rate Limiting – Per-agent rate limits with configurable time windows</li>
<li>Access Control – Whitelist/blacklist with wildcard pattern matching</li>
<li>Local Analytics – Visual dashboard with charts, stats cards, and decision breakdowns (no external tracking)</li>
<li>AI-Ready Endpoints – Serve llms.txt, JSON feed, and markdown for AI crawlers</li>
<li>Tabbed Admin Interface – Clean organization with Analytics, AI Endpoints, and Configuration tabs</li>
</ul>
<h4>AI-Ready Endpoints</h4>
OpenBotAuth provides machine-readable endpoints for AI systems:
<ul>
<li>/llms.txt – Standardized AI feed discovery (also at /.well-known/llms.txt)</li>
<li>/.well-known/openbotauth-feed.json – JSON list of all published posts</li>
<li>/.well-known/openbotauth/posts/{ID}.md – Per-post markdown content</li>
</ul>
Configure which post types to include (posts, pages, or custom types) and set the feed limit (up to 500 items). All data is served locally from your WordPress database. No external tracking or telemetry. Only published, non-password-protected posts are exposed.
<h4>How It Works</h4>
<ol>
<li>AI agent signs HTTP request with its private key (RFC 9421 signature)</li>
<li>WordPress plugin extracts signature headers and sends them to a verifier service</li>
<li>Verifier fetches agent’s public key from registry and verifies signature</li>
<li>Plugin applies policy: allow full content, show teaser, require payment, or deny</li>
</ol>
<h4>External Service Disclosure</h4>
This plugin connects to an external verifier service. When a signed bot request is received, the plugin sends the following data to your configured verifier URL via <code>wp_remote_post</code>:
<ul>
<li>HTTP method (GET, POST, etc.)</li>
<li>The accessed URL (including query string, if present)</li>
<li>HTTP signature headers (Signature, Signature-Input, Signature-Agent)</li>
<li>Additional HTTP header values explicitly listed in the Signature-Input header (e.g., content-type, accept, user-agent)</li>
</ul>
Privacy protection: Sensitive headers (cookies, authorization, proxy-authorization, www-authenticate) are NEVER forwarded, even if present in the request. If a bot’s signature covers a sensitive header, verification will fail with a clear error.
No WordPress user accounts or personal data is transmitted. Only the headers explicitly covered by the bot’s signature are forwarded to enable cryptographic verification. Note that the URL may include query parameters depending on your site’s structure.
You can: 
* Use the hosted verifier at <code>https://verifier.openbotauth.org/verify</code> 
* Self-host the verifier service (see documentation) 
* The verifier service may log requests server-side depending on your configuration
Analytics are local-only. Decision counts (allow/teaser/deny/pay/rate_limit) and bot traffic observations (User-Agent based) are stored in your WordPress database. No analytics data is sent to external servers.
For more information, please review our <a href="https://openbotauth.org/terms" rel="nofollow ugc">Terms of Service</a> and <a href="https://openbotauth.org/privacy" rel="nofollow ugc">Privacy Policy</a>.
<h3>Developer Hooks</h3>
<h4>Filters</h4>
openbotauth_policy 
Modify policy before applying:
<pre><code>add_filter('openbotauth_policy', function($policy, $post) {
 if ($post->post_type === 'premium') {
 $policy['price_cents'] = 1000;
 }
 return $policy;
}, 10, 2);
</code></pre>
<h4>Actions</h4>
openbotauth_verified 
Triggered when a bot is verified:
<pre><code>add_action('openbotauth_verified', function($agent, $post) {
 error_log("Bot {$agent['jwks_url']} accessed post {$post->ID}");
}, 10, 2);
</code></pre>
openbotauth_payment_required 
Triggered when 402 is returned:
<pre><code>add_action('openbotauth_payment_required', function($agent, $post, $price) {
 // Track payment requests
}, 10, 3);
</code></pre>
<h4>AI Endpoint Filters (v0.1.2+)</h4>
openbotauth_should_serve_llms_txt 
Disable llms.txt endpoint (e.g., when using Yoast):
<pre><code>add_filter('openbotauth_should_serve_llms_txt', '__return_false');
</code></pre>
openbotauth_should_serve_feed 
Disable JSON feed endpoint:
<pre><code>add_filter('openbotauth_should_serve_feed', '__return_false');
</code></pre>
openbotauth_should_serve_markdown 
Disable markdown endpoints:
<pre><code>add_filter('openbotauth_should_serve_markdown', '__return_false');
</code></pre>
openbotauth_feed_item 
Modify feed items:
<pre><code>add_filter('openbotauth_feed_item', function($item, $post) {
 $item['custom_field'] = get_post_meta($post->ID, 'my_field', true);
 return $item;
}, 10, 2);
</code></pre>
openbotauth_markdown_content 
Post-process markdown output:
<pre><code>add_filter('openbotauth_markdown_content', function($markdown, $post) {
 return $markdown . "\n\n---\nCopyright notice here";
}, 10, 2);
</code></pre>

OpenBotAuth – AI Crawler Access Control

Verify AI crawlers with HTTP Signatures and enforce allow/deny/teaser policies; also serves llms.txt and AI-ready feeds.

Rupok

WPDeveloper

ThinkRank Team

<a href="https://thinkrank.ai/" rel="nofollow ugc">ThinkRank</a> is an AI-native SEO plugin designed for WordPress that helps you create better content and optimize your website for search engines. Unlike other SEO plugins, ThinkRank leverages artificial intelligence to provide intelligent content suggestions, comprehensive SEO analysis, and automated optimization recommendations.
<h4>Key Features (Always Free)</h4>
<h4>AI-Powered Content Tools</h4>
<ul>
<li>AI Content Brief Generator – Create comprehensive content outlines with competitor analysis and gap identification</li>
<li>AI Metadata Generation – Auto-generate SEO-optimized titles and meta descriptions with SERP preview</li>
<li>Real-time SEO Score Calculator – 13-factor algorithm with actionable improvement suggestions</li>
<li>Competitor Analysis – Analyze competitor content structure, keywords, and SEO strategies</li>
<li>SERP Preview – Live preview of how your content appears in search results</li>
</ul>
<h4>Essential SEO Management</h4>
<ul>
<li>Site Identity Management – Complete site-wide SEO configuration (Basic Info, Title Formats, Breadcrumbs, Hero & Branding, Business Info)</li>
<li>Schema Manager – Organization schema, website markup, and structured data management with deployment validation</li>
<li>Social Media Optimization – Open Graph, Twitter Cards, Facebook, LinkedIn, and Pinterest integration with real-time preview</li>
<li>Performance Monitoring – Core Web Vitals tracking, PageSpeed insights, and technical SEO diagnostics</li>
<li>Analytics Integration – Google Analytics 4, Search Console, and AI-powered insights with intelligent reporting</li>
</ul>
<h4>Crawling & AI Indexing</h4>
<ul>
<li>Robots.txt Management – AI-optimized robots.txt generation, validation, and automatic sitemap integration</li>
<li>XML Sitemap Generation – Multiple sitemap types (Basic, Complete, E-commerce, Segmented) with AI content optimization</li>
<li>LLMs.txt for AI – Specialized file for AI search engines and LLM indexing with automated generation</li>
<li>AI Search Optimization – Prepare your content for next-generation AI-powered search engines</li>
</ul>
<h4>Analytics & Intelligence</h4>
<ul>
<li>SEO Analytics Dashboard – Traffic analysis, organic search performance, and keyword opportunity identification</li>
<li>AI-Powered Insights – Natural language explanations and optimization recommendations</li>
<li>PageSpeed Insights Integration – Real-time Core Web Vitals, technical SEO diagnostics, and improvement opportunities</li>
<li>Intelligent Reporting – Automated alerts, trend analysis, and actionable recommendations</li>
</ul>
<h4>Technical Features</h4>
<ul>
<li>Post/Page Integration – Seamless metabox integration for all content types with real-time optimization</li>
<li>Multi-AI Provider Support – Works with OpenAI (GPT-4o), Claude (Claude 3.7 Sonnet), and Google Gemini (Gemini 2.5 Flash) with intelligent model selection</li>
<li>Local SEO – Business information, operating hours, location data, and local schema markup</li>
<li>Your API Key Control – Complete cost transparency and control with your own AI provider keys</li>
</ul>
<h4>Your API Key, Your Control</h4>
ThinkRank uses your own AI API keys, giving you: 
– Complete cost transparency and control 
– No monthly subscription fees for the core plugin 
– Unlimited usage based on your AI provider plan 
– Enhanced privacy – your data stays between you and your chosen AI provider
<h4>Perfect For</h4>
<ul>
<li>Content Creators & Bloggers – AI-powered content briefs and SEO optimization</li>
<li>E-commerce Store Owners – Product SEO optimization and performance monitoring</li>
<li>SEO Professionals & Agencies – Comprehensive SEO management with client reporting</li>
<li>WordPress Developers – Technical SEO tools and performance diagnostics</li>
<li>Local Businesses – Local SEO optimization with business information management</li>
<li>Enterprise Websites – Advanced analytics, schema management, and AI indexing</li>
<li>Anyone wanting to improve their content’s search visibility – User-friendly interface with AI guidance</li>
</ul>
<h4>Technical Excellence</h4>
Built with modern WordPress development standards: 
– PHP 8.0+ with strict typing 
– React 18+ admin interface 
– WordPress 6.0+ compatibility 
– Security-first approach with proper sanitization and nonce verification 
– Performance optimized with intelligent caching
<h3>Privacy</h3>
This plugin does not send any data to third parties except to the AI provider you configure (OpenAI, Anthropic, or Google AI) when you explicitly use AI features. API keys are stored in your database and are not transmitted to us. No telemetry is collected by ThinkRank.

ThinkRank – AI SEO Assistant (LLMs, Schema, Metadata, Sitemaps, GA4)

AI SEO for WordPress: content briefs, metadata, schema, sitemaps, GA4 & Search Console, PageSpeed, and actionable insights.

OpenBotAuth – AI Crawler Access Control vs ThinkRank – AI SEO Assistant (LLMs, Schema, Metadata, Sitemaps, GA4)