DNS Gurus
Cached · just now
90/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 6
Let's Encrypt logo Let's Encrypt Google Fonts logo Google Fonts Mapbox logo Mapbox Mixpanel logo Mixpanel Okta logo Okta Sentry logo Sentry

Certificate Information

Subject
CN=hello.teads.net
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
March 15, 2026
Valid Until
June 13, 2026 62 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B7:61:DF:B2:F6:BF:6F:66:EC:84:04:5A:63:9F:41:32:C1:50:E3:7D:C0:E0:AB:CE:66:E8:36:57:EB:4A:F7:A6
Alternative Names
1 domains

Security Configuration

TLS Protocols
TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=315360000; includeSubDomains
Content-Security-Policy
Google Fonts logo
Good
default-src; connect-src; script-src; +5 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Strengthen CSP by removing 'unsafe-eval'
  • • 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

Subject Alternative Names

1 domain
hello.teads.net