SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
vizavi-edu.bg
SSL/TLS Certificate
SSL/TLS Certificate for vizavi-edu.bg
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- vizavi-edu.bg
- Valid from
- Oct 18, 2026
- Valid until
- Jan 16, 2027 (66 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05905CF6FA03C0E61175D0975A3614524FC6
- SHA-256 fingerprint
- 99:AA:FE:32:2E:3B:00:5B:E5:DC:54:EE:C2:14:7B:21:AA:BF:62:13:06:9B:FF:7F:16:81:09:DB:BD:AA:35:12
- Chain
- YR2 → 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 Nov 9, 2026.
Never get surprised by vizavi-edu.bg's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch vizavi-edu.bg 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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