DNS Gurus
Cached · just now
93/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 4
Let's Encrypt logo Let's Encrypt BootstrapCDN logo BootstrapCDN Google Fonts logo Google Fonts Report URI logo Report URI

Certificate Information

Subject
CN=reucon.com
Issuer
C=US, O=Let's Encrypt, CN=YR1
Valid From
July 13, 2026
Valid Until
October 11, 2026 59 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7A:10:0A:5F:25:41:1A:4A:AE:AC:B0:68:6C:81:BF:A8:96:8A:3C:94:65:EE:67:7B:17:2E:A1:68:B6:4A:5A:E1
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=315360000; includeSubDomains; preload
Content-Security-Policy
Google Fonts logo
Basic
default-src; connect-src; font-src; +5 more Analyze
Content-Security-Policy-Report-Only
Basic
script-src; report-uri Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • • 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

2 domains
reucon.com *.reucon.com