{hostname}: Inspect SSL/TLS certificate

API: networkcalc.com:networkcalc-api
Endpoint: /security/certificate/{hostname}
Response format: unknown
Auth: unknown
Method: GET
Last Status: 200
Latency: 700ms

Description

Retrieve and inspect the SSL/TLS certificate for a hostname or IP address.

Parameters (2)

hostname (string, path, required)

The hostname, domain name, or IP address to look up

port (integer, query, optional, default: 443)

Specify the TCP port to use on the remote host (default: 443)

Constraints: {'minimum': 0, 'maximum': 65535}

Examples (2)

Inspect SSL/TLS certificate openapi-spec
curl 'https://networkcalc.com/api/security/certificate/google.com'
import requests

resp = requests.get("https://networkcalc.com/api/security/certificate/google.com")
data = resp.json()
import zingu_apis

api = zingu_apis.api("networkcalc")
result = api.fetch("security/certificate/{hostname}")

for item in result:
    print(item)
const resp = await fetch("https://networkcalc.com/api/security/certificate/google.com");
const data = await resp.json();
Inspect SSL/TLS certificate probe-gate
curl 'https://networkcalc.com/api/security/certificate/google.com?port=443'
import requests

resp = requests.get(
    "https://networkcalc.com/api/security/certificate/google.com",
    params={
        'port': '443',
    },
)
data = resp.json()
import zingu_apis

api = zingu_apis.api("networkcalc")
result = api.fetch("security/certificate/{hostname}", port=443)

for item in result:
    print(item)
const resp = await fetch("https://networkcalc.com/api/security/certificate/google.com?port=443");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 17:04:39.592761 200 700ms
2026-04-16 01:32:23.400988 200 548ms
2026-04-16 01:00:39.973148 200 461ms
2026-04-15 02:47:50.921775 200 542ms
2026-04-15 00:35:05.705082 200 586ms
2026-04-14 03:56:54.793502 200 558ms
2026-04-14 02:23:19.762750 200 560ms
2026-04-12 14:30:41.239113 200 461ms
2026-04-12 13:17:44.839600 200 455ms
2026-04-10 01:26:30.019111 ERR
2026-04-10 00:13:41.436299 ERR
2026-04-09 03:26:18.570844 ERR
2026-04-09 00:14:30.741049 ERR
2026-04-03T11:21:14.693777 200 389ms