SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
frei-denken.ch
SSL/TLS Certificate
SSL/TLS Certificate for frei-denken.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- frei-denken.ch
- Valid from
- Aug 6, 2026
- Valid until
- Nov 4, 2026 (58 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06E164E25843B43FA60B709B5A7D25B5FA08
- SHA-256 fingerprint
- 34:38:CB:2A:5D:9A:D7:91:9F:60:6D:4E:4C:F4:C9:06:FE:B8:72:E3:74:E4:C9:96:7B:67:A2:C9:BF:2D:B5:51
- 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.
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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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