DNS Gurus
Cached · just now
95/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 8
Let's Encrypt logo Let's Encrypt Active incidents AMP logo AMP Cloudflare logo Cloudflare Active incidents Cloudflare CDN logo Cloudflare CDN Cloudflare Turnstile logo Cloudflare Turnstile Cloudflare Web Analytics logo Cloudflare Web Analytics Google Fonts logo Google Fonts Google Hosted Libraries logo Google Hosted Libraries

Certificate Information

Subject
CN=beta.mailercloud.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
April 19, 2026
Valid Until
July 18, 2026 69 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
2D:D9:A3:84:82:36:A4:FE:6E:6B:18:3B:F2:C1:20:60:78:CA:BF:22:AC:B8:CA:8B:89:09:AA:5C:39:59:DE:F8
Alternative Names
1 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
Cloudflare Web Analytics logo
Good
default-src; img-src; style-src; +7 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
no-referrer-when-downgrade
Permissions-Policy
Present
geolocation=(), microphone=(), camera=()
Recommendations
  • • Strengthen CSP by removing 'unsafe-eval'

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
beta.mailercloud.com