DNS Gurus
Cached · just now
95/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 8
Google Trust logo Google Trust Firebase logo Firebase Google API JS Client logo Google API JS Client Google Cloud Functions logo Google Cloud Functions Google Fonts logo Google Fonts Google Search logo Google Search Google Static File Front End logo Google Static File Front End Google Cloud logo Google Cloud

Certificate Information

Subject
CN=firebaseapp.com
Issuer
C=US, O=Google Trust Services, CN=WR4
Valid From
July 20, 2026
Valid Until
October 18, 2026 71 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
41:1A:A9:F5:A1:0A:E3:6C:32:69:52:DF:66:A5:16:11:47:55:A8:3A:03:C9:81:A5:A6:3B:77:0E:AC:52:93:26
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=31556926; includeSubDomains; preload
Content-Security-Policy
Google Fonts logo
Good
default-src; script-src; style-src; +8 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
geolocation=(), microphone=(), camera=(); +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

2 domains
firebaseapp.com *.firebaseapp.com