SSL Verification Bypassed
The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.
Reason:
Expired Certificate - the server's certificate has expired
Open
Cached
·
just now
71/100
SECURITY SCORE
Certificate Information
Subject
CN=mail.mxfilter.net
Issuer
C=US, O=Let's Encrypt, CN=E5
Valid From
February 09, 2025
Valid Until
May 10, 2025
Expired
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
F9:4F:06:1C:4D:67:F9:A0:93:B6:4A:79:D2:3A:15:2A:8F:08:AC:F5:F6:8A:CC:9D:E2:BC:47:FD:00:A5:35:A4
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Good
default-src; frame-src; script-src; +6 more
default-src 'self';frame-src 'self' *.youtube.com youtu.be *.smartertools.com docs.google.com;script-src * 'unsafe-inline';font-src * 'unsafe-inline' data:;img-src * 'unsafe-inline' data: blob:;style-src * 'unsafe-inline';media-src *;frame-ancestors 'self';connect-src *;
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Strengthen CSP by removing 'unsafe-eval'
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports