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 act-health-inc.com

Valid
Issued by (CA)
Let's Encrypt
Subject
act-health-inc.com
Valid from
Sep 8, 2026
Valid until
Dec 7, 2026 (49 days remaining)
Public key
RSA 2048-bit
Serial
0564A6FBE7E36669BC8D54A8D9CFDB332A75
SHA-256 fingerprint
BE:B0:CB:3C:63:50:53:A1:60:D0:3D:0C:B3:8F:30:E8:D5:49:D1:79:A6:05:BB:17:CE:66:04:0B:47:D3:D6:71
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.act-health-inc.com, act-health-inc.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 Sep 23, 2026.

Never get surprised by act-health-inc.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch act-health-inc.com continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.