SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-52-53-112-38.us-west-1.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-52-53-112-38.us-west-1.compute.amazonaws.com
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- cansend.net
- Valid from
- Nov 11, 2026
- Valid until
- Feb 9, 2027 (86 days remaining)
- Public key
- EC 256-bit
- Serial
- 056ED74B32F573A51BDD0AE9F45D61E5D4B0
- SHA-256 fingerprint
- AC:04:08:4B:BB:A9:C1:B5:14:B1:EC:6F:F8:FE:35:AD:AC:1B:EB:CD:2F:1B:D3:81:17:7E:B4:C3:59:DC:D1:7E
- 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 ec2-52-53-112-38.us-west-1.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-52-53-112-38.us-west-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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.