DNS Gurus
Cached · just now
92/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Google Trust logo Google Trust

Certificate Information

Subject
CN=api.merge.dev
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
September 05, 2026
Valid Until
December 04, 2026 57 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
01:20:31:BE:A4:EC:36:D4:5D:06:12:C7:C1:33:B6:97:39:24:3D:28:3B:43:AF:C1:DD:3A:7C:E3:E2:78:89:0B
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
Present
max-age=15552000; includeSubDomains; preload
Content-Security-Policy
Strong
script-src; connect-src; img-src; +4 more Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
  • • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • • 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

1 domain
api.merge.dev