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 basehair.jp

Valid
Issued by (CA)
Let's Encrypt
Subject
basehair.jp
Valid from
Jul 25, 2026
Valid until
Oct 23, 2026 (72 days remaining)
Public key
RSA 2048-bit
Serial
06EEC3367DD9BF72A2739A005EE1080E598D
SHA-256 fingerprint
46:78:D7:AC:32:63:17:A3:08:A2:C2:55:44:8C:9C:35:A4:E1:DF:21:77:AE:90:D9:39:FC:BD:87:DB:0E:65:38
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
basehair.jp, www.basehair.jp

Certificate Authority Authorization (CAA)

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

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This is today's certificate. Turn on monitoring and we'll watch basehair.jp continuously, notifying you the moment anything moves across all three signals:

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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