SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
shu-chan.net
SSL/TLS Certificate
SSL/TLS Certificate for shu-chan.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- shu-chan.net
- Valid from
- Oct 13, 2026
- Valid until
- Jan 11, 2027 (85 days remaining)
- Public key
- EC 256-bit
- Serial
- 05D94A4A255CCBD221F58CEEAFF7B945BB57
- SHA-256 fingerprint
- F9:35:15:B0:E9:B0:60:A8:09:4F:93:A1:7D:92:5A:FB:DC:11:68:BC:C3:AE:63:94:F5:73:35:4B:4E:2E:4E:BD
- Chain
- YE1 → 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.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 15, 2026.
Never get surprised by shu-chan.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch shu-chan.net 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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