~/tools / ssl-checker

SSL Checker

Check SSL certificate expiry, chain validity, TLS version and cipher. Catches expired certs, weak crypto and chain issues.

[ OK ] Valid for 84 more days.

── output ─────

Issued to: x.com
Issued by: E8
Valid from: 2026-04-28
Valid until: 2026-07-27 (84 days)
TLS version: TLSv1.3
Cipher: TLS_AES_256_GCM_SHA384
Key: EC (prime256v1) · 256 bit
Signature: ecdsa-with-SHA384
Forward secrecy: yes
Self-signed: no
Must-staple: no
SHA-256 fingerprint: 8F:EE:26:AB:58:8F:AA:EC:62:14:25:DC:35:A6:87:8A:C1:F1:0C:03:08:E4:BF:D2:BC:B4:2B:07:F7:86:8D:65
Serial: 052D8ECAB4AA034E36AE378A3F082B941F01

subject_alt_names · 5

*.live.x.com *.watch.x.com *.x.com cdn.syndication.x.com x.com

certificate_chain · 2 certs

[ leaf ]x.com

84 days left

issuer: E8

2026-04-28 → 2026-07-27

[ inter ]E8

313 days left

issuer: ISRG Root X1

2024-03-13 → 2027-03-12

// Save x.com → we'll run this daily and alert on changes. /signup →