SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-ok.com.ua
SSL/TLS Certificate
SSL/TLS Certificate for 1-ok.com.ua
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- 1-ok.com.ua
- Valid from
- Sep 2, 2026
- Valid until
- Dec 1, 2026 (37 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05ACF82276C27C6AECA0E1D3B528D3B989FC
- SHA-256 fingerprint
- 11:AA:00:F1:07:B2:82:82:8F:E8:85:03:A2:27:F4:8E:58:AA:37:8C:64:02:AC:1C:EA:13:23:7F:8A:E1:BB:ED
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 18, 2026.
Never get surprised by 1-ok.com.ua's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-ok.com.ua 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.
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