NEW: CloudFlare says it detected Perplexity scraping and crawling websites that explicitly block it from scraping them.
Based on customers' complaints and its own experiments, the company says Perplexity is using "stealth" bots and changing its bots "user agent" to circumvent restrictions.

Perplexity accused of scraping websites that explicitly blocked AI scraping | TechCrunch
Internet giant Cloudflare says it detected Perplexity crawling and scraping websites, even after customers had added technical blocks telling Perplexity not to scrape their pages.

TechCrunch (techcrunch.com)