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Use case

Stop scrapers and AI crawlers from taking your content for free

Bots read your pages, copy your pricing and archives, and feed AI models, all before a human visitor ever shows up in your analytics.

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Why it matters

39% of the top 1M sites

already see AI bot traffic, but only 2.98% actively block it. robots.txt does not settle it alone: 30% of AI bot scrapes ignore it outright, and OpenAI's ChatGPT-User agent still reached 42% of the sites that had blocked it.

Read the research
How it works against you

What the traffic looks like

  • A browser, not a script

    Puppeteer, Playwright and Selenium drive a real Chromium instance, so the page renders exactly as it would for a person, just thousands of times a minute.

  • A different IP on every request

    Residential proxy networks route each request through a real home connection, so no single IP address gives the pattern away.

  • A crawler name anyone can claim

    Setting a user agent to Googlebot costs one line of code. Nothing about the rest of the request has to come from Google.

How Centinel closes it

What runs against this traffic

  • Crawler identity checks

    More than 1,500 known crawlers are matched by identity, and the ones that declare themselves are checked against the IP ranges their operators publish.

    Googlebot keeps its access. Anything wearing its name does not.

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  • Invisible signal collection

    467 properties are measured inside the page before any protected content is sent.

    Catches a scraping tool on the first request, without a CAPTCHA your visitors have to solve.

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  • A price on the traffic you don't block

    Verified AI agents can be allowed, rate-limited, or billed per request instead of only allowed or blocked.

    Turns crawler traffic you would otherwise serve for free into a line you control.

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Start with your site

Want to see what reaches your site?

A site audit shows the crawler families reaching your domain and the pages where you may need more control.