SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tst-architekten.ch
SSL/TLS Certificate
SSL/TLS Certificate for tst-architekten.ch
Valid- Issued by (CA)
- Google Trust Services
- Subject
- tst-architekten.ch
- Valid from
- Jun 7, 2026
- Valid until
- Sep 5, 2026 (41 days remaining)
- Public key
- EC 256-bit
- Serial
- ECDE27F6E72445BA13CA9874B8A3BB37
- SHA-256 fingerprint
- C1:F9:EB:9A:D6:80:F4:4B:20:14:29:FB:83:86:AA:17:A5:8B:52:8F:15:6F:FB:3A:92:31:9A:DA:DD:4E:3C:97
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by tst-architekten.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch tst-architekten.ch 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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