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 zenra-n.com

Valid
Issued by (CA)
Let's Encrypt
Subject
aqsrv06.aqusys.jp
Valid from
Sep 6, 2026
Valid until
Dec 5, 2026 (60 days remaining)
Public key
RSA 2048-bit
Serial
0608063BA49B3B2F3826E1CD023EC6DD1405
SHA-256 fingerprint
D0:06:B2:43:1C:C1:AB:33:16:91:EC:3A:3F:BA:3A:AC:CA:F5:B4:DD:F2:9C:90:8A:B6:DA:ED:76:DC:2C:BA:EC
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (9)
aqsrv06.aqusys.jp, chikan-t.com, pururungang.com, www.chikan-t.com, www.pururungang.com, www.zenra-f.com, www.zenra-n.com, zenra-f.com, zenra-n.com

Certificate Authority Authorization (CAA)

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

Never get surprised by zenra-n.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch zenra-n.com 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.

Monitor this certificate free

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