SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
spark-edu.com
SSL/TLS Certificate
SSL/TLS Certificate for spark-edu.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- mail.spark-edu.com
- Valid from
- Jul 18, 2026
- Valid until
- Oct 16, 2026 (32 days remaining)
- Public key
- EC 384-bit
- Serial
- 051A1AC5E60D7EC76A891CD5377C8D585A49
- SHA-256 fingerprint
- D5:E4:A4:DF:A3:4A:2C:76:80:ED:EB:EB:38:5B:BC:7B:38:05:FB:6D:B8:87:19:A8:2C:25:E5:43:78:92:DE:67
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by spark-edu.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch spark-edu.com 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.