SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dialog-telekom.at
SSL/TLS Certificate
SSL/TLS Certificate for dialog-telekom.at
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.dialog-telekom.at
- Valid from
- Jan 28, 2026
- Valid until
- Feb 9, 2027 (200 days remaining)
- Public key
- RSA 2048-bit
- Serial
- E52286E502BA713DD7CCA830EAA92344
- SHA-256 fingerprint
- 53:97:41:03:60:C0:3C:C6:51:7D:5E:9E:98:5A:E9:69:C6:06:64:51:CB:BC:AC:88:2C:01:EC:C5:19:7A:E1:6D
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority → AAA Certificate Services
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by dialog-telekom.at's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dialog-telekom.at 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.
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