SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
razor-blade.net
SSL/TLS Certificate
SSL/TLS Certificate for razor-blade.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- razor-blade.net
- Valid from
- Oct 28, 2026
- Valid until
- Jan 26, 2027 (83 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060C222A9E326A761A29A278BA4CEB915BF5
- SHA-256 fingerprint
- F4:51:4D:D2:7D:FC:57:39:49:17:A4:13:E4:FC:FB:77:E5:C5:BD:6B:03:FB:DC:0C:2A:A7:D6:11:32:08:1E:BF
- 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.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 6, 2026.
Never get surprised by razor-blade.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch razor-blade.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.