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 0ffice-365.de

Valid
Issued by (CA)
Google Trust Services
Subject
0ffice-365.de
Valid from
Jun 24, 2026
Valid until
Sep 22, 2026 (51 days remaining)
Public key
EC 256-bit
Serial
96C3BE0996076FF81399968C52A41C4A
SHA-256 fingerprint
9C:1B:0B:F3:63:AD:87:EA:5F:F8:F7:1D:48:B2:D7:36:95:7D:19:6A:E0:89:0D:74:84:D0:88:90:BC:2F:46:83
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.0ffice-365.de, 0ffice-365.de

Certificate Authority Authorization (CAA)

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

Never get surprised by 0ffice-365.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch 0ffice-365.de 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.