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 plang-daichi.com

Valid
Issued by (CA)
Let's Encrypt
Subject
plang-daichi.com
Valid from
Nov 2, 2026
Valid until
Jan 31, 2027 (82 days remaining)
Public key
EC 256-bit
Serial
05DC12311208E6AE6236A2DE0989908A985A
SHA-256 fingerprint
D6:5D:CF:90:32:9B:57:80:A2:3D:0F:29:49:DE:E3:70:B4:69:6D:C1:BF:9F:B0:6F:6A:D8:E4:F1:28:72:1F:68
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
*.plang-daichi.com, plang-daichi.com

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 Nov 4, 2026.

Never get surprised by plang-daichi.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch plang-daichi.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.