SSL Certificate Lookup

SSL Certificate Lookup API

SSL certificate lookup API allows you to fetch live streaming Secure Sockets Layer (SSL) certificate along with its complete SSL cert chain to provide up-to-date and consistent data.

500 free API credits. No credit card required.

"domainName": "whoisfreaks.com", "queryTime": "2022-11-24 06:59:05", "sslCertificates": [ { "chainOrder": "end-user", "authenticationType": "domain", "validityStartDate": "2022-09-30 05:33:58 UTC", "validityEndDate": "2022-12-29 05:33:57 UTC", "signatureAlgorithm": "SHA256-RSA", "subject": { "commonName": "whoisfreaks.com" }, "issuer": { "commonName": "R3", "organization": "Let's Encrypt", "country": "US" }, {...} }

Features

Up-to-Date

You can view the details of real time streaming SSL certificate, including public key, revocation status and expiration date.

Consistent

We parse SSL certificate chain data thoroughly to give details in JSON/ XML format. This API provides details about the server including, common name and certificate issuer.

Common Use Cases

Certificate Chain Monitoring

View the SSL certificates in your organization that are about to expire or already expired. Monitor unauthorized changes in SSL cert chain as they may point domain takeover.

Trust Badge

This API allows you to know which domains are trustworthy and which are not in the chain. In this way, you can check that any domain listed has a valid SSL certificate from a trusted root certificate authority.

Man-in-the-Middle and typosquatting attacks

To avoid being impersonated, it is important to check the SSL certificate validation type. This will help you identify self-signed certificates often used in man-in-the-middle and typosquatting attacks.

Data Enrichment

SSL certificate chain Lookup data can ease you security enrichment efforts which could help you to reveal potential inconsistencies that may translate to exploitable vulnerabilities in SSL cert chain.