SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aptima-nsc.com
SSL/TLS Certificate
SSL/TLS Certificate for aptima-nsc.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- aptima-nsc.com
- Valid from
- Jun 27, 2026
- Valid until
- Sep 25, 2026 (51 days remaining)
- Public key
- EC 256-bit
- Serial
- 0554F43A3C43226F54F61EA14147781661EB
- SHA-256 fingerprint
- C4:83:C9:65:FD:7A:F7:F6:C2:D4:CF:11:AF:04:EF:E9:5E:82:03:53:AF:A1:7C:34:33:83:E7:96:D4:1B:64:86
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by aptima-nsc.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch aptima-nsc.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.