SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
atsem-2021.fr
SSL/TLS Certificate
SSL/TLS Certificate for atsem-2021.fr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.atsem-2021.fr
- Valid from
- May 19, 2026
- Valid until
- Nov 29, 2026 (40 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 43E445846B7331929B1EB5CBBA1922A3
- SHA-256 fingerprint
- F3:D7:52:B6:3E:BB:73:F8:3A:EF:D5:33:FF:20:49:00:71:71:CA:DD:E5:53:CC:6C:E6:51:FA:97:3D:C5:72:B5
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 2, 2026.
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Uptime
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DNS changes
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TLS certificate
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