Certificate Chain Deep Dive

Comprehensive certificate chain validation and CRL revocation analysis.

HTTPS://

Try these examples:

✅ Valid Chain ❌ Revoked Certificate ⚠️ Incomplete Chain

incomplete-chain.badssl.com

1/1/2026, 11:37:32 pm UTC

Certificate Chain Validation

❌ Certificate chain has issues that may prevent browsers from trusting it.

Issues:

  • Missing intermediate certificate(s) - browsers may not be able to build complete trust chain

Warnings:

  • Server should include intermediate certificates in the certificate bundle

Certificate Details

End Entity

Leaf Certificate
Download PEM
Subject: *.badssl.com
Issuer: R13
Serial (Decimal): 0x05DC9AF9BF1470EE26709C0983763002CC82
Serial (Hex): 05DC9AF9BF1470EE26709C0983763002CC82

Valid From: 2025-11-18 20:02:47

Valid Until: 2026-02-16 20:02:46

Signature: RSA-SHA256

Version: 3

CRL Revocation Status:

✅ Certificate not found in CRL (not revoked)

CRL size: 248100 bytes

CRL URL

http://r13.c.lencr.org/3.crl