SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
edu-penza.ru
SSL/TLS Certificate
SSL/TLS Certificate for edu-penza.ru
Untrusted chain- Issued by (CA)
- The Ministry of Digital Development and Communications
- Subject
- *.edu-penza.ru
- Valid from
- Jul 20, 2026
- Valid until
- Jul 20, 2027 (295 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 2B88A8F98A814394B0C5F9D896DA8321
- SHA-256 fingerprint
- 2C:34:5A:EE:5C:ED:70:20:81:6D:86:21:BF:AD:9C:22:62:D5:5C:86:A1:EA:66:7A:31:03:87:3C:95:0C:2F:A7
- Chain
- Russian Trusted Sub CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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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