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 takken-ube.com

Valid
Issued by (CA)
Let's Encrypt
Subject
takken-ube.com
Valid from
Oct 4, 2026
Valid until
Jan 2, 2027 (77 days remaining)
Public key
RSA 2048-bit
Serial
0646DD22A2FF0EA2847DFD78F8C1ED7B9929
SHA-256 fingerprint
8A:65:3B:6C:9F:B5:43:52:EC:3B:83:7A:68:E8:D4:27:EE:D0:CB:79:93:90:B0:9E:A2:01:23:FF:A0:66:9B:BE
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
takken-ube.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 Oct 12, 2026.

Never get surprised by takken-ube.com's certificate expiring

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

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.