DNS Gurus
Cached · just now
89/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 11
AWS CloudFront logo AWS CloudFront AppDynamics logo AppDynamics Google AdSense logo Google AdSense Google Analytics logo Google Analytics Google Conversion Tracking logo Google Conversion Tracking Google DoubleClick logo Google DoubleClick Google Fonts logo Google Fonts Google Search logo Google Search Google Tag Manager logo Google Tag Manager OneTrust logo OneTrust Sectigo logo Sectigo

Certificate Information

Subject
CN=webmail.lumos.net
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36
Valid From
April 21, 2026
Valid Until
November 05, 2026 18 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
D6:FB:B8:FC:85:B8:6E:33:E1:C9:AB:19:E2:B8:DC:EF:52:01:DB:4C:BD:66:57:63:38:98:01:95:CA:18:8B:38
Alternative Names
3 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
AWS CloudFront logo
Basic
default-src; font-src; frame-src; +4 more Analyze
Content-Security-Policy-Report-Only
Google DoubleClick logo
Basic
default-src; font-src; frame-src; +8 more Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
accelerometer=(), camera=(), geolocation=(); +8 more
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'

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