SSL Labs

SSL grades, certificate details and server grades

Qualys SSL Labs tests the security of public HTTPS servers.

Check ssl certificate

Check ssl certificate

Check a website’s SSL Labs HTTPS security grade, servers, certificate, protocols, and known weaknesses. Cached results from the last 72 hours are reused by default; a fresh assessment can take several minutes and may exceed the call time limit. Results are kept off public boards.

Your information

Website

Website domain or URL, for example https://github.com/about.

More options

Use CachedOptional

Reuse a report from the last 72 hours when available, for example true; set false to request a fresh test.

1 credit per completed run

The same inputs also work from your code or an AI assistant. See For developers.

Example results

A+ security grade

github.com, Tested Sep 28, 2026

Days until certificate expiry33

Certificate expiresNov 1, 2026

View full SSL Labs assessment

Known weaknesses

No known weaknesses reported.

Servers

Grade A+
140.82.112.3
View server assessment

Certificate and protocols

Certificate issuer: Sectigo Limited
Supported protocols: TLS 1.3, TLS 1.2

About the SSL Labs tool

SSL Labs (SSLLabs) returns HTTPS grades, server details, certificate information, supported protocols, and known weaknesses.

Check ssl certificate needs a website domain or URL and can reuse a report from the last 72 hours.

Built from ssllabs.com. Last checked Sep 29, 2026.

Actions

Check ssl certificate

1 credit

What you provide

Field	Type	Required	Description
Website`website`	Text	Required	Website domain or URL, for example https://github.com/about.Example: github.com
Use Cached`use_cached`	Yes or no	Optional	Reuse a report from the last 72 hours when available, for example true; set false to request a fresh test.

What you get

Field	Type	Description
Domain`domain`	Text	Website domain that was tested.Example: github.com
Servers`servers`	List	Server addresses and grades.
Grade`servers[].grade`	Text	Example: A+
Ip Address`servers[].ip_address`	Text	Example: 140.82.112.3
Results Page Link`servers[].results_page_link`	Text	Example: https://www.ssllabs.com/ssltest/analyze.html?d=github.com&hideResults=on&s=140…
Test Date`test_date`	Date	Example: 2026-09-28
Overall Grade`overall_grade`	Text	Lowest SSL Labs grade across the tested servers.Example: A+
Known Weaknesses`known_weaknesses`	List
Days Until Expiry`days_until_expiry`	Number	Example: 33
Results Page Link`results_page_link`	Text	Example: https://www.ssllabs.com/ssltest/analyze.html?d=github.com&hideResults=on
Certificate Issuer`certificate_issuer`	Text	Example: Sectigo Limited
Supported Protocols`supported_protocols`	List
Certificate Expiry Date`certificate_expiry_date`	Date	Example: 2026-11-01

Example result

For Website: github.com

JSON

{
  "domain": "github.com",
  "servers": [
    {
      "grade": "A+",
      "ip_address": "140.82.112.3",
      "results_page_link": "https://www.ssllabs.com/ssltest/analyze.html?d=github.com&hideResults=on&s=140.82.112.3"
    }
  ],
  "test_date": "2026-09-28",
  "overall_grade": "A+",
  "known_weaknesses": [],
  "days_until_expiry": 33,
  "results_page_link": "https://www.ssllabs.com/ssltest/analyze.html?d=github.com&hideResults=on",
  "certificate_issuer": "Sectigo Limited",
  "supported_protocols": [
    "TLS 1.3",
    "TLS 1.2"
  ],
  "certificate_expiry_date": "2026-11-01"
}

For developers

Call it from your code with one request. Change the values in input to run it on new data. To get an API key, open Developers at the bottom of Studio, turn on Developer mode and go to API keys.

cURL

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 180 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@ssl-labs",
  "visibility": "public",
  "operation": "check_ssl_certificate",
  "version": 1,
  "input": {
    "website": "github.com"
  },
  "response": {
    "format": "json"
  }
}'

What you can do with it

Compare HTTPS grades across a website’s servers
Review certificate expiry dates and issuers
Identify supported protocols and known weaknesses
Track certificate expiry dates for monitored websites

Questions about SSL Labs

Can I run it with my own inputs?

Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant.

Can I call this SSL Labs tool as an API?

Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back.

How much does it cost?

Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit.

Do I need a SSL Labs account?

No. You only need a Fous account.

How current is the data?

Fous gets the data from ssllabs.com when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 29, 2026.