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 office-planet.net

Valid
Issued by (CA)
Let's Encrypt
Subject
office-planet.net
Valid from
Jun 28, 2026
Valid until
Sep 26, 2026 (40 days remaining)
Public key
RSA 2048-bit
Serial
058D4B7E6EBE30A677D35562736BE8F16E72
SHA-256 fingerprint
A6:05:73:53:5F:BF:93:ED:B2:3F:50:81:4D:0B:89:8B:CB:0F:30:D7:2C:C2:C6:46:F9:57:BA:55:72:76:40:2E
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.office-planet.net, office-planet.net

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 Aug 11, 2026.

Never get surprised by office-planet.net's certificate expiring

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

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, DNSSEC, CNAME 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.