SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
syntec-numerique.fr
SSL/TLS Certificate
SSL/TLS Certificate for syntec-numerique.fr
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- *.fr-3.platformsh.site
- Valid from
- Jul 6, 2026
- Valid until
- Oct 4, 2026 (30 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 052A34D6996F0BFAB8B5DA53DC8B482D8A97
- SHA-256 fingerprint
- 04:A4:C2:EE:63:ED:78:6E:AC:AD:5A:0B:84:E5:A4:78:D1:C4:B3:A0:6B:F9:06:77:E0:50:36:D6:C6:B1:17:B2
- Chain
- YR2 → 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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DNS changes
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TLS certificate
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