SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tms-it.net
SSL/TLS Certificate
SSL/TLS Certificate for tms-it.net
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- www.tms-itdienst.at
- Valid from
- Sep 5, 2026
- Valid until
- Dec 4, 2026 (89 days remaining)
- Public key
- EC 256-bit
- Serial
- 066CAC508A530D8A4C606D2D4487A8FF9C9D
- SHA-256 fingerprint
- DA:51:E3:27:70:D0:9C:3A:98:C5:A1:7E:93:41:2E:AB:AF:60:0D:A3:DC:AF:83:88:53:7D:BF:23:DE:3C:0C:CC
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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.
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