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Cloudflare reports Perplexity’s unauthorized web crawling

Cloudflare claims Perplexity is bypassing security measures to access blocked sites.

August 4, 2025 at 05:51 PM
blur Cloudflare says Perplexity’s AI bots are ‘stealth crawling’ blocked sites

Cloudflare's report highlights concerns over Perplexity's web crawling practices.

Cloudflare accuses Perplexity of ignoring site restrictions

A new report from Cloudflare claims that Perplexity is bypassing restrictions designed to prevent its AI bots from accessing blocked websites. According to Cloudflare, Perplexity's AI crawlers are falsely identifying themselves to avoid detection and continue their data collection. This follows previous incidents where Perplexity had trouble with paywalls and site restrictions. Customers of Cloudflare reported that Perplexity's bots still accessed their sites despite explicit prohibitions in their robots.txt files. Cloudflare conducted tests showing that when they blocked Perplexity, the crawlers disguised their identities as common browsers like Google Chrome. Cloudflare estimates that this unauthorized activity affects millions of requests daily across a vast number of websites. Perplexity has dismissed Cloudflare's claims as a publicity stunt, suggesting they stem from misunderstandings regarding the company's practices. The ongoing tensions reflect broader concerns about the role of AI in web content scraping and ownership, prompting Cloudflare to take action against unauthorized crawlers.

Key Takeaways

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Cloudflare claims Perplexity bypasses web restrictions.
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Perplexity allegedly disguises its crawling identity.
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Previous accusations have been made against Perplexity.
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Cloudflare tests confirmed unauthorized access attempts.
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Responses to AI crawling are becoming increasingly urgent.
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Ethics and regulations surrounding AI use are debated.

"Cloudflare received complaints from customers about Perplexity’s bots."

This highlights the ongoing issues website owners face with unauthorized scraping.

"Perplexity uses stealth methods to access blocked sites, according to Cloudflare."

This raises significant concerns about web security and content rights.

"Perplexity spokesperson described Cloudflare’s claims as a publicity stunt."

This reflects the defensiveness of AI companies facing scrutiny.

"Cloudflare allows websites to request payments from AI companies for crawling."

This policy shift underscores the growing tensions around AI scraping.

The rising tensions between Cloudflare and Perplexity highlight a critical concern among website owners about the ethics of AI crawlers. With the increasing power of AI technology, entities like Perplexity are pushing boundaries, leading to debates on digital ethics and intellectual property. Cloudflare's proactive stance against unauthorized scraping reflects a growing urgency in online security and content ownership. As AI becomes entrenched in digital practices, clearer regulations and guidelines will be necessary to create a balanced environment for information sharing and protection. This issue is likely to escalate, prompting both technological and legal responses.

Highlights

  • Perplexity is accused of masquerading as legitimate browsers.
  • Cloudflare calls out Perplexity for stealth crawling practices.
  • The clash between AI and web content ownership grows more intense.
  • AI technologies challenge existing norms of data access.

High risk of backlash from the AI community

The accusations against Perplexity raise sensitivities around AI ethics, potentially provoking negative reactions from industry stakeholders.

This conflict raises important questions about AI's impact on web content rights.

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