SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
aitek-international.com
SSL/TLS Certificate
SSL/TLS Certificate for aitek-international.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- aitek-international.com
- Valid from
- Jul 4, 2026
- Valid until
- Oct 2, 2026 (68 days remaining)
- Public key
- EC 256-bit
- Serial
- 058822D6FB8826CFE5402EE7D4FD7A4F9DAE
- SHA-256 fingerprint
- 5D:19:79:DD:C6:F8:BC:B6:C1:AA:E2:BC:3B:57:73:B0:7F:2E:75:AA:9C:4D:F4:B4:44:1E:CA:01:02:80:3B:C7
- 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.
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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.
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