DNS Gurus
Cached · just now
95/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 2
Google Trust logo Google Trust Ketch logo Ketch

Certificate Information

Subject
CN=opt-out.nylas.com
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
May 05, 2026
Valid Until
August 03, 2026 87 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
A9:62:39:B8:8F:24:0F:0C:66:8B:0F:D7:80:27:F1:DB:F5:60:3E:F1:74:27:4A:A3:66:D6:50:1C:03:1A:86:8B
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
Ketch logo
Good
default-src; script-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
strict-origin-when-cross-origin
Permissions-Policy
Present
camera=(), microphone=(), geolocation=(); +1 more
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
opt-out.nylas.com