Discontinued
This API no longer responds. Our last check on 2026-07-31 found no working endpoint — the service appears to have shut down or moved. The documentation, code samples and score below are kept for reference only; do not build against this API. See working Security APIs →
Overview
The Mozilla TLS Scanner API lets you check the TLS/SSL configuration of any public domain. It tests for common security issues like weak cipher suites, certificate problems, and protocol misconfigurations. This is a great tool for learning what makes HTTPS connections secure or vulnerable.
Beginner Tip
Submit a scan with a POST request, then poll the GET endpoint with the returned scan ID until the scan status is "finished" — results usually arrive within 10-30 seconds.
Available Data
The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.
Example Response
Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.
{
"status": "success",
"data": {
"result": "Data from Mozilla tls scanner",
"description": "Mozilla observatory tls scanner",
"timestamp": "2025-01-15T10:00:00Z"
}
} Field Reference
id Unique scan ID used to retrieve results. target The domain name that was scanned. status Current scan status: "pending", "running", or "finished". has_tls Whether the target supports TLS/HTTPS. cert_id Internal ID for the TLS certificate found on the target. analysis List of analyzer results detailing specific TLS checks and their pass/fail status. Implementation Example
Calls a real endpoint of this API. Replace any placeholder credentials with your own key.
const url = "https://tls-observatory.services.mozilla.com/api/v1/run?target=example.com";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data); What Can You Build?
Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.
Common Errors & Troubleshooting
Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.
Metadata Score Breakdown
Estimated from metadata — endpoint not independently tested
Metadata estimate · endpoint not independently tested
Technical Specifications
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