Open
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just now
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SECURITY SCORE
Certificate Information
Subject
CN=gitlab.io
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
October 12, 2025
Valid Until
January 10, 2026
65 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
AA:A7:2C:B5:FC:7B:B2:04:30:F7:A4:5D:22:1E:8B:DA:2B:90:AF:B1:58:DB:6B:9A:5B:65:AC:CC:8E:52:AE:36
Alternative Names
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=31536000
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
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • 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
Configured
(Restricts certificate issuance)
Current Issuer
Authorized
(Matches CAA policy)
Authorized CAs
ssl.com
comodoca.com
digicert.com
; cansignhttpexchanges=yes
globalsign.com
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
sectigo.com
Wildcard CAs
comodoca.com
digicert.com
; cansignhttpexchanges=yes
globalsign.com
letsencrypt.org
pki.goog
; cansignhttpexchanges=yes
ssl.com
Incident Reporting
mailto:[email protected]
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • You have authorized 7 CAs - consider limiting to only the CAs you actively use