
Cloudflare Blocks Perplexity AI for Stealth Crawling and Rule Evasion
3 days ago
Perplexity uses stealth crawlers that change user agents and IPs to bypass no-crawl directives and ignore robots.txt files. Cloudflare blocked these undeclared crawlers after tests showed Perplexity accessed restricted content despite blocks. Unlike OpenAI, Perplexity evades detection and violates crawling norms. Cloudflare added rules to block such AI crawling, protecting customers and promoting transparent, respectful bot behavior.