Open
Cached
·
just now
94/100
SECURITY SCORE
Certificate Information
Subject
CN=*.dropboxbusiness.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
January 12, 2026
Valid Until
April 12, 2026
89 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
D3:53:D0:7C:5B:A5:AA:F8:67:CA:20:5C:02:CC:F8:28:E5:01:81:C0:36:49:7D:98:F2:63:CB:33:69:46:5C:BD
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
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Basic
frame-src; worker-src; media-src; +12 more
frame-src https://* dbapi-6: dbapi-7: dbapi-8: dropbox-client: itms-apps: itms-appss: blob: https://*:* ; worker-src https://www.dropbox.com/static/serviceworker/ https://www.dropbox.com/encrypted_folder_download/service_worker.js https://www.dropbox.com/service_worker.js blob: ; media-src https://* blob: ; font-src https://* data: ; script-src 'unsafe-eval' 'inline-speculation-rules' https://www.dropbox.com/static/api/ https://www.dropbox.com/pithos/ https://cfl.dropboxstatic.com/static/ https://www.dropboxstatic.com/static/ https://accounts.google.com/gsi/client https://canny.io/sdk.js https://www.paypal.com/sdk/js https://applepay.cdn-apple.com https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ 'unsafe-inline' ; child-src https://www.dropbox.com/static/serviceworker/ blob: ; object-src 'self' https://cfl.dropboxstatic.com/static/ https://www.dropboxstatic.com/static/ ; base-uri 'self' ; img-src https://* data: blob: ; style-src https://* 'unsafe-inline' 'unsafe-eval' ; frame-ancestors 'self' ; connect-src https://* ws://127.0.0.1:*/ws blob: wss://dsimports.dropbox.com/ ; default-src 'none' ; form-action 'self' https://www.dropbox.com/ https://dl-web.dropbox.com/ https://photos.dropbox.com/ https://paper.dropbox.com/ https://showcase.dropbox.com/ https://www.hellofax.com/ https://app.hellofax.com/ https://www.hellosign.com/ https://app.hellosign.com/ https://docsend.com/ https://www.docsend.com/ https://help.dropbox.com/ https://navi.dropbox.jp/ https://a.sprig.com/ https://selfguidedlearning.dropboxbusiness.com/ https://instructorledlearning.dropboxbusiness.com/ https://sales.dropboxbusiness.com/ https://accounts.google.com/ https://api.login.yahoo.com/ https://login.yahoo.com/ https://experience.dropbox.com/ https://pal-test.adyen.com https://2e83413d8036243b-Dropbox-pal-live.adyenpayments.com/ https://onedrive.live.com/picker https://www.salesforce.com/ https://app-sj01.marketo.com/ https://*:* ; report-uri https://www.dropbox.com/csp_log?policy_name=metaserver-whitelist
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • 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
Recommendations
- • Consider using critical flag (flags=128) for stricter CAA enforcement
- • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
- • Consider adding 'issuewild' records to control wildcard certificate issuance