SSL/TLS certificate check

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GET https://api.api.sh/web/v1/ssl

1 credit / call web data try it in the playground →

Also the negotiated TLS version, cipher suite, key exchange group, ALPN protocol, HTTP version and status, and the HSTS header.

Every response includes credits_used: the credits this call cost.

Parameters

name	type	description
`domain`required	string	Host name (a URL works too). Example: `github.com`
`port`	integer	TLS port: 443 (default), 8443, 465, 993, 995, 636, 990, 5986, 2083, 2087 or 8883. Default: `443`

Every endpoint also takes fresh, raw, fields (see lean responses and caching).

Example

curl "https://api.api.sh/web/v1/ssl?domain=github.com" \
  -H "x-api-key: $APISH_KEY"

import os, requests

res = requests.get(
    "https://api.api.sh/web/v1/ssl",
    params={"domain": "github.com"},
    headers={"x-api-key": os.environ["APISH_KEY"]},
    timeout=120,
)
res.raise_for_status()
data = res.json()

const url = new URL("https://api.api.sh/web/v1/ssl");
url.searchParams.set("domain", "github.com");

const res = await fetch(url, { headers: { "x-api-key": process.env.APISH_KEY } });
if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);
const data = await res.json();

Response

A JSON object with the fields described above, plus raw (the source's own data), cached, fetched_at and credits_used. Errors return {"success": false, "error": "…"} with the HTTP status (see errors). A lookup that ran but found nothing (404) costs the price above; refused calls and errors on our side are free (what's charged).

The fastest way to see the full response is the playground: it runs this endpoint with your account and shows the exact JSON.