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 1mannin-shogi.com

Valid
Issued by (CA)
GlobalSign nv-sa
Subject
www.1mannin-shogi.com
Valid from
Sep 13, 2026
Valid until
Mar 31, 2027 (173 days remaining)
Public key
RSA 2048-bit
Serial
0182607F2E6C0FA6258F9B52EBFA47DF
SHA-256 fingerprint
37:48:80:00:ED:B2:95:01:AD:0D:F4:4B:83:52:0C:7F:A9:CB:1A:23:05:71:43:E7:A0:DC:FC:32:21:67:49:A0
Chain
GlobalSign Atlas R46 AlphaSSL CA 2026 Q3 → GlobalSign Root R46
Subject Alternative Names (2)
1mannin-shogi.com, www.1mannin-shogi.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 Oct 4, 2026.

Never get surprised by 1mannin-shogi.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch 1mannin-shogi.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.