SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for zimag.ru
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- zimag.ru
- Valid from
- Jan 9, 2024
- Valid until
- Apr 8, 2024 (expired 911 days ago)
- Public key
- RSA 2048-bit
- Serial
- 03FAD84F1896A937B6D76B36A01E6A960DD1
- SHA-256 fingerprint
- 58:63:F4:42:10:E7:07:D8:E8:3F:21:85:E4:94:B6:49:33:0E:2A:8C:99:92:22:D1:C3:45:27:B5:5A:05:BB:B6
- Chain
- R3 → 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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This is today's certificate. Turn on monitoring and we'll watch zimag.ru 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.
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