SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sp-edukacja.pl
SSL/TLS Certificate
SSL/TLS Certificate for sp-edukacja.pl
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- sp-edukacja.pl
- Valid from
- Oct 10, 2026
- Valid until
- Jan 8, 2027 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0581EA2EE4BF6C9C2AD7608560D50B3545FD
- SHA-256 fingerprint
- 4F:85:AD:8E:38:1A:65:5E:A5:91:C7:53:92:B3:AF:89:3A:20:64:75:B9:CF:C7:C9:99:E7:DB:7B:F3:49:41:B0
- 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.
This certificate has been served since Sep 6, 2026.
Never get surprised by sp-edukacja.pl's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch sp-edukacja.pl 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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