SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-16-170-215-92.eu-north-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-16-170-215-92.eu-north-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- guita.io
- Valid from
- Jul 2, 2026
- Valid until
- Sep 30, 2026 (68 days remaining)
- Public key
- EC 256-bit
- Serial
- 053F64254A8EBA0A0F2D9F250E9A465F1E13
- SHA-256 fingerprint
- B7:4F:64:EC:A4:5F:C4:0A:36:C8:C2:15:79:05:B9:8A:7C:8B:B7:F0:D8:DE:EB:08:34:92:4A:C9:94:E0:30:E9
- Chain
- YE1 → 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 ec2-16-170-215-92.eu-north-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-16-170-215-92.eu-north-1.compute.amazonaws.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.