~/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 151 more days.
── output ─────
- Issued to
- www.linkedin.com
- Issued by
- DigiCert Global G2 TLS RSA SHA256 2020 CA1
- Valid from
- 2026-03-19
- Valid until
- 2026-09-19 (151 days)
- TLS version
- TLSv1.3
- Cipher
- TLS_AES_256_GCM_SHA384
- Key
- RSA · 2048 bit
- Signature
- sha256WithRSAEncryption
- Forward secrecy
- yes
- Self-signed
- no
- Must-staple
- no
- SHA-256 fingerprint
- ED:13:BD:4D:79:7A:D3:4F:B6:BE:C1:6F:A9:8C:A2:91:4F:3B:53:F2:B0:45:EE:55:08:B9:D5:33:5F:7D:BE:36
- Serial
- 012C5B27A66AFC4D7A0C965C0B093C32
subject_alt_names · 39
www.linkedin.com
linkedin.com
rum5.perf.linkedin.com
exp4.www.linkedin.com
exp3.www.linkedin.com
exp2.www.linkedin.com
exp1.www.linkedin.com
rum2.perf.linkedin.com
rum4.perf.linkedin.com
rum6.perf.linkedin.com
rum17.perf.linkedin.com
rum8.perf.linkedin.com
rum9.perf.linkedin.com
afd.perf.linkedin.com
rum14.perf.linkedin.com
rum18.perf.linkedin.com
rum19.perf.linkedin.com
exp5.www.linkedin.com
realtime.www.linkedin.com
px.ads.linkedin.com
px4.ads.linkedin.com
dc.ads.linkedin.com
lnkd.in
px.jobs.linkedin.com
mid4.linkedin.com
lan.sdk.linkedin.com
www.linkedin-measure.com
status.linkedin.com
payment.www.linkedin.com
afd-wcs.www.linkedin.com
shm.www.linkedin.com
static.licdn.com
static-exp1.licdn.com
static-exp2.licdn.com
static-exp3.licdn.com
static-afd.licdn.com
rum22.perf.linkedin.com
cf.perf.linkedin.com
cf.grpc.linkedin.com
certificate_chain · 2 certs
[ leaf ]www.linkedin.com
151 days left
issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
2026-03-19 → 2026-09-19
[ inter ]DigiCert Global G2 TLS RSA SHA256 2020 CA1
1803 days left
issuer: DigiCert Global Root G2
2021-03-30 → 2031-03-29