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SSL Issuance & Renewal Debugger

Inspect CAA, challenge routes and DNS records behind certificate issuance failures.

One public HTTP(S) URL. Credentials and private addresses are refused.

Optional actual token, not a private key.

Optional HTTP response body or DNS TXT value to compare.

One server job runs at a time. Private reports last up to 24 hours; the shared history retains at most 500 finished jobs. Download evidence you need to keep. Jobs have a three-minute execution budget; limits may stop a complex page earlier.

Verify a domain for origin checks, browser actions or webhook delivery

Publish the unique value in a DNS TXT record or a small file on your HTTPS website. Verification lasts 24 hours in this browser session.

Results

Submit a job to collect evidence. Its actual queue state will appear here.

Your recent jobs

No history loaded. Refresh to view jobs from this browser session.

What you can investigate

Inspect CAA, challenge routes and DNS records behind certificate issuance failures. Review the affected endpoint or page, the measurement time and the suggested next action before changing your site.

Scope and privacy

Inputs and results are encrypted in our database and tied to this browser’s private ownership cookie. Only public destinations are allowed. Reports last up to 24 hours within the shared 500-report history; private recovery backups have a separate lifetime.

Results describe the listed endpoints and this measurement time. DNS and certificate preflights are bounded observations; they do not certify worldwide availability, reproduce every certificate-authority decision or independently validate the complete DNSSEC trust chain.

Read the data-retention details

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