DNS Gurus
Open Cached · just now
75/100 SECURITY SCORE

Certificate Information

Subject
CN=*.a.run.app
Issuer
C=US, O=Google Trust Services, CN=WR2
Valid From
October 27, 2025
Valid Until
January 19, 2026 63 days
Public Key
ECDSA 256 bit (P-256) Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
88:2A:6B:05:FA:2D:2A:E8:A5:70:3C:99:F0:13:9F:DE:7E:B3:64:65:F9:43:68:51:36:97:BA:5E:B4:A2:BD:67
Alternative Names
100 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
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • 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

100 domains
run.app *.a.run.app *.africa-south1.run.app *.asia-east1.run.app *.asia-east2.run.app *.asia-northeast1.run.app *.asia-northeast2.run.app *.asia-northeast3.run.app *.asia-south1.run.app *.asia-south2.run.app *.asia-southeast1.run.app *.asia-southeast2.run.app *.asia-southeast3.run.app *.australia-southeast1.run.app *.australia-southeast2.run.app *.europe-central2.run.app *.europe-north1.run.app *.europe-north2.run.app *.europe-north3.run.app *.europe-southwest1.run.app *.europe-west1.run.app *.europe-west10.run.app *.europe-west12.run.app *.europe-west15.run.app *.europe-west2.run.app *.europe-west3.run.app *.europe-west4.run.app *.europe-west5.run.app *.europe-west6.run.app *.europe-west8.run.app *.europe-west9.run.app *.me-central1.run.app *.me-central2.run.app *.me-west1.run.app *.northamerica-northeast1.run.app *.northamerica-northeast2.run.app *.northamerica-south1.run.app *.southamerica-east1.run.app *.southamerica-west1.run.app *.us-central1.run.app *.us-central2.run.app *.us-east1.run.app *.us-east4.run.app *.us-east5.run.app *.us-east7.run.app *.us-south1.run.app *.us-west1.run.app *.us-west2.run.app *.us-west3.run.app *.us-west4.run.app *.us-west8.run.app *.africa-south1.mtls.run.app *.asia-east1.mtls.run.app *.asia-east2.mtls.run.app *.asia-northeast1.mtls.run.app *.asia-northeast2.mtls.run.app *.asia-northeast3.mtls.run.app *.asia-south1.mtls.run.app *.asia-south2.mtls.run.app *.asia-southeast1.mtls.run.app *.asia-southeast2.mtls.run.app *.asia-southeast3.mtls.run.app *.australia-southeast1.mtls.run.app *.australia-southeast2.mtls.run.app *.europe-central2.mtls.run.app *.europe-north1.mtls.run.app *.europe-north2.mtls.run.app *.europe-north3.mtls.run.app *.europe-southwest1.mtls.run.app *.europe-west1.mtls.run.app *.europe-west10.mtls.run.app *.europe-west12.mtls.run.app *.europe-west15.mtls.run.app *.europe-west2.mtls.run.app *.europe-west3.mtls.run.app *.europe-west4.mtls.run.app *.europe-west5.mtls.run.app *.europe-west6.mtls.run.app *.europe-west8.mtls.run.app *.europe-west9.mtls.run.app *.me-central1.mtls.run.app *.me-central2.mtls.run.app *.me-west1.mtls.run.app *.northamerica-northeast1.mtls.run.app *.northamerica-northeast2.mtls.run.app *.northamerica-south1.mtls.run.app *.southamerica-east1.mtls.run.app *.southamerica-west1.mtls.run.app *.us-central1.mtls.run.app *.us-central2.mtls.run.app *.us-east1.mtls.run.app *.us-east4.mtls.run.app *.us-east5.mtls.run.app *.us-east7.mtls.run.app *.us-south1.mtls.run.app *.us-west1.mtls.run.app *.us-west2.mtls.run.app *.us-west3.mtls.run.app *.us-west4.mtls.run.app *.us-west8.mtls.run.app