Open
Cached
·
just now
94/100
SECURITY SCORE
Certificate Information
Subject
C=US, ST=California, L=San Francisco, O=Dropbox, Inc, CN=*.dropbox.com
Issuer
C=US, O=DigiCert Inc, CN=DigiCert TLS RSA SHA256 2020 CA1
Valid From
November 12, 2024
Valid Until
December 08, 2025
35 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
4B:01:6E:8A:C7:6E:52:8B:FC:48:72:BD:0E:FC:B0:9F:B7:B0:CC:5D:4D:0C:04:91:A2:35:BB:FE:B5:A6:3E:35
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
default-src; style-src; frame-ancestors; +12 more
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
amazonaws.com
digicert.com
letsencrypt.org
; validationmethods=dns-01;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/2079416047
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