SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
act-s.com
SSL/TLS Certificate
SSL/TLS Certificate for act-s.com
Valid- Issued by (CA)
- Google Trust Services
- Subject
- act-s.com
- Valid from
- Aug 29, 2026
- Valid until
- Nov 27, 2026 (87 days remaining)
- Public key
- EC 256-bit
- Serial
- E066953D28C600AA13449EAFCD16FE19
- SHA-256 fingerprint
- D9:60:47:E0:C2:60:58:E5:09:B7:40:90:B8:41:BF:2B:21:03:58:7F:7A:45:13:F4:3A:42:CF:44:C8:68:B1:64
- Chain
- WE1 → GTS Root R4
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 Aug 9, 2026.
Never get surprised by act-s.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch act-s.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.