DNS Gurus
Cached · just now
90/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 7
Ketch logo Ketch Let's Encrypt logo Let's Encrypt Google Analytics logo Google Analytics Google Tag Manager logo Google Tag Manager HubSpot logo HubSpot HubSpot Analytics logo HubSpot Analytics PostHog logo PostHog

Certificate Information

Subject
CN=*.ngrok-free.dev
Issuer
C=US, O=Let's Encrypt, CN=YE2
Valid From
July 27, 2026
Valid Until
October 25, 2026 40 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
9F:8F:38:77:F3:12:CB:48:E4:D8:D0:50:B5:C7:B7:0F:61:44:F1:C3:18:12:D7:EC:29:9C:32:79:3A:27:49:85
Alternative Names
2 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
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Ketch logo
Basic
script-src; base-uri; object-src; +2 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
strict-origin-when-cross-origin
Permissions-Policy
Present
camera=(), microphone=(), geolocation=()
Recommendations
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking

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

2 domains
ngrok-free.dev *.ngrok-free.dev