SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dasse-construction.fr
SSL/TLS Certificate
SSL/TLS Certificate for dasse-construction.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dasse-construction.fr
- Valid from
- Jul 6, 2026
- Valid until
- Oct 4, 2026 (61 days remaining)
- Public key
- EC 384-bit
- Serial
- 05CB9B98F9F5269E790E44CF5396BC38979A
- SHA-256 fingerprint
- D6:EF:E8:17:4C:F6:E5:BB:D5:BF:72:01:96:7C:44:97:28:A7:D5:0E:5A:7B:53:0F:10:D4:A1:D0:46:06:8D:9B
- Chain
- YE1 → Root YE → ISRG Root X2 → 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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