A blog owner explains why visitors may encounter anti-crawler blocking on their site, attributing it to old browser user agents used by high-volume crawlers gathering data for LLM training. The page addresses issues with feed aggregators like Inoreader and Feedly that fetch content with outdated user agents, and warns about archive services using suspicious crawling patterns.
Cloudflare's default security settings inadvertently blocked legitimate API clients using Python and Perl libraries, returning 403 errors before payment terms could be presented. The company identified seven configuration issues including Browser Integrity Check, Bot Fight Mode, and AI Crawl Control that prevented paying agents from accessing their paid API endpoints across all three zones.
AgentReady is a tool that checks whether AI assistant crawlers can access and read website content by making real GET requests with each crawler's user-agent and evaluating seven weighted criteria. Users can display a self-contained SVG badge on their site showing their accessibility grade for AI assistants.