SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
mu-architecture.fr
SSL/TLS Certificate
SSL/TLS Certificate for mu-architecture.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mu-architecture.fr
- Valid from
- Sep 18, 2026
- Valid until
- Dec 17, 2026 (36 days remaining)
- Public key
- EC 256-bit
- Serial
- 05857235C02CC986B7077C410181224B4702
- SHA-256 fingerprint
- F2:4D:22:A6:65:76:D5:DF:2C:12:D5:93:8A:9B:56:04:40:23:95:49:E5:0E:5D:3A:BF:76:EE:33:B4:75:07:D7
- Chain
- YE2 → 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.
This certificate has been served since Oct 11, 2026.
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Uptime
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DNS changes
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TLS certificate
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