SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for u-for.com

Valid
Issued by (CA)
Let's Encrypt
Subject
*.u-for.com
Valid from
Sep 15, 2026
Valid until
Dec 14, 2026 (67 days remaining)
Public key
RSA 2048-bit
Serial
0675633664A04089C340EC61BBB1F3C56297
SHA-256 fingerprint
59:58:03:49:C9:8E:26:BD:B3:14:96:B4:77:E0:25:62:6E:E9:63:F4:EB:32:A5:E5:18:37:0A:02:F2:F8:60:3A
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.u-for.com, u-for.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

We've observed 1 previous certificate for this host. This certificate has been served since Sep 30, 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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