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

9/21/2025, 10:03:17 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: R12
Serial (Decimal): 0x06BF80D445C74FCD3CE2B83DB6B299C8CA4F
Serial (Hex): 06BF80D445C74FCD3CE2B83DB6B299C8CA4F

Valid From: 2025-09-16 20:02:48

Valid Until: 2025-12-15 20:02:47

Signature: RSA-SHA256

Version: 3

CRL Revocation Status:

✅ Certificate not found in CRL (not revoked)

CRL size: 62761 bytes

CRL URL

http://r12.c.lencr.org/80.crl