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 msmschool.net

Valid
Issued by (CA)
Google Trust Services
Subject
msmschool.net
Valid from
Aug 27, 2026
Valid until
Nov 25, 2026 (47 days remaining)
Public key
EC 256-bit
Serial
F4E335C4DB54BA0D0E28607D472EE8DA
SHA-256 fingerprint
6D:4E:54:38:4C:89:D3:AF:7F:3B:D8:A7:35:76:C0:0E:5D:E2:7A:04:1A:B0:DA:75:A7:4F:F3:B1:A9:CA:C9:54
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.msmschool.net, msmschool.net

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 Sep 15, 2026.

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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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