SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
swayeur.fr
SSL/TLS Certificate
SSL/TLS Certificate for swayeur.fr
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- swayeur.fr
- Valid from
- Oct 2, 2026
- Valid until
- Dec 31, 2026 (58 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06DC1399E93E629C8E902FF91F5A87368BF9
- SHA-256 fingerprint
- 92:B3:0E:77:25:C3:C5:C3:12:9A:7A:88:C6:DF:82:E0:C6:96:85:B9:E3:A7:F8:4A:89:A7:09:E9:55:B0:47:78
- 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.
This certificate has been served since Oct 18, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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