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 spa-planet.site

Valid
Issued by (CA)
Let's Encrypt
Subject
www.spa-planet.site
Valid from
Sep 18, 2026
Valid until
Dec 17, 2026 (74 days remaining)
Public key
RSA 2048-bit
Serial
052064D6C40B5DE03015F476A37259C927B3
SHA-256 fingerprint
30:6E:00:AA:F1:66:E0:30:9B:56:A9:81:0C:4A:D3:C5:7F:8F:FF:85:7F:E9:9B:DD:02:F6:EF:08:3F:E7:8D:99
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
spa-planet.site, www.spa-planet.site

Certificate Authority Authorization (CAA)

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

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This is today's certificate. Turn on monitoring and we'll watch spa-planet.site 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.

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