DNS Gurus
Cached · just now
93/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 2
Let's Encrypt logo Let's Encrypt Report URI logo Report URI

Certificate Information

Subject
CN=probely.com
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
April 22, 2026
Valid Until
July 21, 2026 78 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
6B:BC:27:D8:06:0C:7B:C1:57:02:AF:90:2D:9B:87:70:FD:F1:32:71:47:20:0B:80:24:03:19:57:78:A7:97:2E
Alternative Names
17 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=31536000; includeSubDomains; preload
Content-Security-Policy
Report URI logo
Basic
default-src; script-src; report-uri 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
Present
microphone=(), camera=(), geolocation=(self "https://probely.com")
Recommendations
  • • 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