GoWebAnalyze

Analysis help

Why an analysis can fail

GoWeb analyzes what a real browser can safely access and render. Some sites block automated rendering, require security checks, reject validation requests, or hide content behind overlays.

GoWeb does not bypass security checks, CAPTCHAs, private pages, or restricted content. When a scan fails, the reason is often part of how the target website protects, redirects, or renders public pages.

Security verification or bot challenge

  • SECURITY_CHALLENGE_DETECTED
  • CAPTCHA_DETECTED
  • ACCESS_BLOCKED

The website displayed a security verification, CAPTCHA, Cloudflare challenge, or bot protection page. GoWeb cannot inspect the real page content in this case.

What you can do

  • Try another public page from the same website.
  • If you own the website, test in an environment where aggressive bot protection is disabled.
  • Allow trusted test or crawler traffic only if appropriate.
  • Do not expect GoWeb to bypass CAPTCHA or security checks.

HTTP 416 — request rejected by the website

  • HTTP_416

HTTP 416 means the website or its CDN rejected the type of request used during validation or rendering. Some hosting platforms, CDNs, or security configurations respond strangely to HEAD, range, preflight, or automated requests.

This does not mean GoWeb only supports certain website builders.

What you can do

  • Try the canonical URL, usually the homepage with https://.
  • Remove unnecessary paths or tracking parameters.
  • If you own the site, check CDN and security rules, including whether HEAD, range, or preflight requests are blocked.
  • Try again later if the CDN temporarily rejected the request.

Forbidden or access denied

  • HTTP_403
  • ACCESS_DENIED

The website refused access to the automated browser or backend request.

What you can do

  • Check bot protection, firewall rules, region restrictions, or login requirements.
  • Scan a public page that does not require authentication.

Not found

  • HTTP_404
  • URL_NOT_FOUND

The URL does not exist, redirects to a missing page, or is not publicly accessible.

What you can do

  • Check spelling.
  • Use the public homepage.
  • Make sure the page is live.

Timeout or rendering failed

  • RENDER_TIMEOUT
  • RENDER_FAILED
  • URL_NOT_REACHABLE

The page took too long to load, the server could not be reached, or the browser could not complete rendering.

What you can do

  • Try again.
  • Check page performance.
  • Scan a simpler public page.
  • Make sure DNS and SSL are working.

Unsafe or private URL

  • INVALID_URL
  • UNSAFE_URL
  • PRIVATE_URL_BLOCKED

GoWeb blocks localhost, private IPs, internal network addresses, and unsafe URLs for security.

What you can do

  • Use a public HTTPS URL.

Screenshot or storage issue

  • SCREENSHOT_UPLOAD_FAILED

The analysis may have run, but screenshot storage failed.

What you can do

  • Retry.
  • Contact support if it repeats.

Next step

Try a public page that a browser can reach.

Analyze a websiteContact support