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 dr-thiem.com

Valid
Issued by (CA)
Google Trust Services
Subject
dr-thiem.com
Valid from
Oct 18, 2026
Valid until
Jan 16, 2027 (89 days remaining)
Public key
EC 256-bit
Serial
1390F169D0ACE22713BB4511187E56FD
SHA-256 fingerprint
15:B1:10:C7:37:9A:51:E7:1F:A4:CC:19:BC:AA:A8:74:D8:F0:C9:82:10:A2:AC:E0:E4:8E:7E:EC:0C:40:78:03
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.dr-thiem.com, dr-thiem.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 Oct 17, 2026.

Never get surprised by dr-thiem.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch dr-thiem.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.