What is Cloudflare error code 1010 and how do I fix it?

Cloudflare error 1010 means the website owner has blocked your request because your browser’s signature failed Cloudflare’s Browser Integrity Check. The site treats your client as a bot or as an unwanted browser fingerprint, and access is denied at the edge before the request reaches the origin.

Fix it as an end user

Disable any VPN, proxy, or privacy extension before retrying. These rewrite headers and JavaScript surface in ways the integrity check flags. Clear cache and cookies, or open the site in an incognito window. If it still fails, switch to a stock build of Chrome or Firefox.

If none of that works, the owner has explicitly blocklisted your fingerprint and only they can lift it. Cloudflare support cannot override a customer’s security settings, so look up the domain in the Whois database and contact the owner directly.

Fix it as a scraper

Default Selenium, Puppeteer, and Playwright leak a fingerprint that Cloudflare detects through JavaScript checks (navigator.webdriver, missing plugins, headless-specific timings). Retrying with the same client will keep returning 1010.

Two options actually work. Patch the leaks with a stealth driver such as undetected-chromedriver or playwright-stealth, which override the obvious tells. Or hand the request to a scraping API that rotates fingerprints and handles the integrity check for you, for example HasData’s Web Scraping API. Both bypass the block by changing what Cloudflare sees, not by retrying harder.