SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ec2-3-39-7-200.ap-northeast-2.compute.amazonaws.com
SSL/TLS Certificate
SSL/TLS Certificate for ec2-3-39-7-200.ap-northeast-2.compute.amazonaws.com
Self-signed- Issued by (CA)
- ip-172-31-13-42.ap-northeast-2.compute.internal
- Subject
- ip-172-31-13-42.ap-northeast-2.compute.internal
- Valid from
- Jan 25, 2022
- Valid until
- Jan 23, 2032 (2005 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 38C1A3416AF4ADBF3AC08C8D03D1B6EE02131037
- SHA-256 fingerprint
- A4:70:BC:4D:3E:0C:0D:A7:03:97:48:D5:CA:CA:86:5A:6B:05:FF:C0:EA:59:C4:42:1D:C4:F9:BD:72:67:07:CB
- Chain
- ip-172-31-13-42.ap-northeast-2.compute.internal
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ec2-3-39-7-200.ap-northeast-2.compute.amazonaws.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ec2-3-39-7-200.ap-northeast-2.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.