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 healthhigh.com

Untrusted chain
Issued by (CA)
Let's Encrypt
Subject
healthhigh.com
Valid from
Jul 16, 2026
Valid until
Oct 14, 2026 (61 days remaining)
Public key
RSA 2048-bit
Serial
05EF3DEC5B2FBD3537EC71D0573A49FC1007
SHA-256 fingerprint
78:4A:8B:CE:B8:7E:69:7F:C4:3C:91:59:80:BB:C1:85:B4:AB:59:56:B2:59:CB:A5:1F:6B:C9:A9:D7:2E:B3:E5
Chain
YR2
Subject Alternative Names (2)
*.healthhigh.com, healthhigh.com

Certificate Authority Authorization (CAA)

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

Never get surprised by healthhigh.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch healthhigh.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.

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