prefab.ioSSL Check Results
56
days until expiration
TLSv1.3
TLS_AES_256_GCM_SHA384
Let's Encrypt
2048 bits
0516F6FC5DEF92B144D610D8CA021BE9E09E
DC:B9:D5:13:21:59:57:07:C5:83:69:81:D8:37:2F:61:89:CE:12:66
54:F2:4C:E9:5F:8B:4E:01:B8:D2:42:17:BF:94:D6:0F:35:78:8C:05:EF:5F:D7:65:F5:F0:F0:1B:D3:36:61:C8
Security Score
Excellent security configuration
R12
56 days
Dec 23, 2025
Mar 23, 2026
Security Analysis
Secure
Secure
Want continuous monitoring?
Get instant alerts when certificates expire or encounter issues.
Certificate History
No historical data found
SSL Security Best Practices
Automate Renewals
Forgotten certificates cause downtime. Use Let's Encrypt or professional monitoring to automate the renewal process.
Use Strong Protocols
Always prefer TLS 1.3 or 1.2. Disable older, vulnerable protocols like SSL 3.0, TLS 1.0, and TLS 1.1 on your server.
Monitor Transparency
Keep an eye on Certificate Transparency (CT) logs to ensure no unauthorized certificates are issued for your domain.
Frequently Asked Questions
Everything you need to know about prefab.io's security status.
Q:When does prefab.io's SSL certificate expire?
prefab.io's certificate expires on March 23, 2026, which is in 56 days.
Q:Who issued the certificate for prefab.io?
It was issued by Let's Encrypt. This issuer is recognized by all major browsers.
Q:Is the connection to prefab.io safe?
Yes, the certificate is valid, meaning communication with prefab.io is encrypted and secure.
Q:Can I monitor this domain for free?
Yes! You can register at GuardSSL to get automatic alerts before prefab.io's certificate expires, preventing any downtime.