SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
prefra.com
SSL/TLS Certificate
SSL/TLS Certificate for prefra.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- prefra.com
- Valid from
- Jul 29, 2026
- Valid until
- Oct 27, 2026 (89 days remaining)
- Public key
- EC 256-bit
- Serial
- 050BB45F17D22ED92D107475601E26932C73
- SHA-256 fingerprint
- 97:6A:9F:D9:F2:3A:A8:31:8C:3F:3E:E3:0D:20:71:E2:3E:E2:FF:89:64:41:AE:DD:90:06:A8:EC:8C:C7:B0:22
- 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.
This certificate has been served since Jul 23, 2026.
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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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