SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
teko-ag.ch
SSL/TLS Certificate
SSL/TLS Certificate for teko-ag.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- teko-ag.ch
- Valid from
- Jun 26, 2026
- Valid until
- Sep 24, 2026 (62 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05FC675B72F71BDEFEAF837820C38B38626D
- SHA-256 fingerprint
- DC:A1:80:01:72:E2:99:9B:66:4B:7A:09:69:EF:3A:EC:45:CB:24:5A:06:61:91:5C:F8:D7:FE:06:E5:01:BB:DD
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by teko-ag.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch teko-ag.ch continuously, notifying you the moment anything moves across all three signals:
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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