Open
Cached
·
just now
90/100
SECURITY SCORE
Certificate Information
Subject
CN=nextcloud.com
Issuer
C=US, O=Let's Encrypt, CN=E7
Valid From
January 14, 2026
Valid Until
April 14, 2026
83 days
Public Key
ECDSA
384 bit
(P-384)
Strong
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
8F:C8:3B:87:7F:63:E3:EF:E9:96:F6:30:2A:18:63:5C:D3:6A:BA:C4:45:7C:29:A9:F4:4C:99:CA:CC:62:CC:C0
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
Excellent
max-age=63072000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; script-src; connect-src; +7 more
default-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: https://ams.wpml.org ttps://www.paypal.com/ https://www.paypalobjects.com/ https://dataguard.azureedge.net https://stats.nextcloud.com/ https://cdn.matomo.cloud https://*.stripe.com https://nextcloud.matomo.cloud https://ajax.googleapis.com/ https://www.youtube.com; connect-src 'self' https://www.paypal.com https://*.stripe.com https://dataguard.azureedge.net https://my.dataguard.de https://stats.nextcloud.com/ https://*.wpml.org https://cdn.matomo.cloud https://nextcloud.matomo.cloud https://ipinfo.io/json; img-src 'self' data: *.openstreetmap.org https://www.paypalobjects.com https://t.paypal.com/ https://dataguard.azureedge.net https://*.nextcloud.com https://*.w.org https://secure.gravatar.com https://i.ytimg.com https://i.vimeocdn.com https://nextcloud.matomo.cloud; style-src 'unsafe-inline' 'self' https://dataguard.azureedge.net https://*.wpml.org https://nextcloud.matomo.cloud; font-src 'self' data: https://nextcloud.matomo.cloud; media-src 'self' https://www.youtube.com https://download.nextcloud.com; frame-src 'self' blob: https://www.paypal.com https://www.youtube.com https://www.youtube-nocookie.com https://player.vimeo.com https://*.nextcloud.com https://*.stripe.com https://www.openstreetmap.org https://nextcloud.matomo.cloud; worker-src 'self' blob: https://stats.nextcloud.com https://cdn.matomo.cloud; frame-ancestors 'self' https://nextcloud.matomo.cloud
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • 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