SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for pek-afs.com

Valid
Issued by (CA)
Let's Encrypt
Subject
pek-afs.com
Valid from
Sep 13, 2026
Valid until
Dec 12, 2026 (55 days remaining)
Public key
EC 256-bit
Serial
056EF24A9D14D452BE74F87C86A479AEB028
SHA-256 fingerprint
D9:75:B1:6E:E2:74:B4:B6:49:B4:5D:BB:9F:E7:EA:D3:E7:F0:31:BE:16:ED:AF:8C:8A:85:3C:2A:3D:BE:6E:A4
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.pek-afs.com, pek-afs.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

This certificate has been served since Sep 18, 2026.

Never get surprised by pek-afs.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch pek-afs.com continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.