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 box-look.org

Valid
Issued by (CA)
Let's Encrypt
Subject
box-look.org
Valid from
Oct 1, 2026
Valid until
Dec 30, 2026 (74 days remaining)
Public key
EC 256-bit
Serial
06E2C920D2666EEC0BD49E1B9F96301B57FB
SHA-256 fingerprint
67:C5:01:D7:35:D1:25:F2:41:F2:F9:1E:C6:97:9A:47:A4:92:51:01:A0:DD:83:20:46:1B:C6:0C:25:37:43:91
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
box-look.org, www.box-look.org

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 Oct 3, 2026.

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

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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