SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tele-com.de
SSL/TLS Certificate
SSL/TLS Certificate for tele-com.de
Hostname mismatch- Issued by (CA)
- Sectigo Limited
- Subject
- mivb-x.tele-com.de
- Valid from
- Jul 8, 2025
- Valid until
- Aug 8, 2026 (15 days remaining)
- Public key
- RSA 2048-bit
- Serial
- A82CDE11200E3136A9FAA072FCA09D5B
- SHA-256 fingerprint
- 0C:41:72:33:8C:37:20:A8:C0:4E:3C:18:12:89:84:BB:22:08:B2:08:20:71:5C:70:DE:0C:C0:13:58:D2:A1:1C
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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.
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