Cloudflare "Just a moment..." / "Checking your browser" challenge loop (Verify you are human never finishes)
The Cloudflare challenge keeps reloading — the browser can’t pass it because cookies/JavaScript are blocked, the clock is wrong, or extensions interfere.
Just a moment...Checking your browser before accessingVerify you are human by completing the action belowneeds to review the security of your connection before proceedingChecking if the site connection is secure Meaning
Challenges need JavaScript and the cf_clearance cookie. Blocking third-party cookies, strict privacy extensions, outdated browsers, VPNs with bad reputation or wrong system time cause loops. Site owners with very high Security Level or Under Attack mode make it worse.
Common causes
- Cookies or JavaScript blocked
- Privacy/ad-block extensions
- VPN/IP with poor reputation
- Wrong device clock
- Owner’s Under Attack mode/high security level
⚡ Quick fix
- Enable cookies/JS, disable extensions, try a private window
- Turn off VPN; fix system time
- Owner: lower Security Level or add skip rules for trusted traffic
Detailed fix by platform
Cloudflare
# Security → Settings → Security Level / I'm Under Attack mode (owner side)
How to diagnose
- Browser — Works in another browser/profile?
- Network — VPN?
- Clock — Correct time?
🔧 Still not fixed?
Many errors look alike. If the steps above didn’t solve it, one of these is probably what you’re facing:
Similar errors
- 1005 Cloudflare Error 1005: Access denied — The owner of this website has banned the autonomous system number (ASN) your IP address is in
- 1006 Cloudflare Error 1006 / 1007 / 1008: Access denied — Your IP address has been banned
- 1009 Cloudflare Error 1009: Access denied — The owner of this website has banned the country or region your IP address is in
Most viewed in Cloudflare
Other ways to find it
Where this error sits
Origin: Edge & web server. Errors that are often confused with or caused by this one (click to open):
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Last updated 15 Oct 2026