DNS Gurus
Cached · just now
87/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 7
Google Cloud Storage logo Google Cloud Storage Google Fonts logo Google Fonts Google Static File Front End logo Google Static File Front End Pendo logo Pendo Sectigo logo Sectigo Sentry logo Sentry Google Cloud logo Google Cloud

Certificate Information

Subject
CN=mailfilter.myrootnet.nl
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36
Valid From
February 16, 2026
Valid Until
February 16, 2027 292 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
3B:7B:0E:0D:27:89:25:79:DE:04:2A:B4:14:1C:82:4C:8E:44:F7:B6:4F:37:8D:CE:50:75:79:C9:74:C9:9C:38
Alternative Names
5 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
Present
max-age=15552000
Content-Security-Policy
Google Cloud Storage logo
Basic
default-src; script-src; style-src; +4 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
no-referrer
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • 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