Open
Cached
·
just now
88/100
SECURITY SCORE
Certificate Information
Subject
CN=additioapp.com
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
December 30, 2025
Valid Until
March 30, 2026
54 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
89:21:6A:3D:E2:FF:BC:1A:BA:79:45:26:6E:42:54:FA:4C:27:19:25:96:1C:9F:8B:C7:7C:D9:E8:19:78:72:6C
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=15552000; includeSubDomains; preload
Content-Security-Policy
Basic
default-src; script-src; style-src; +9 more
default-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' blob: https://maps.googleapis.com https://www.gstatic.com https://js.stripe.com https://unpkg.com https://accounts.google.com https://alcdn.msauth.net https://appleid.cdn-apple.com https://cdn.announcekit.app https://apis.google.com https://statics.teams.cdn.office.net https://js.live.net https://www.google.com/recaptcha/ https://www.google.com/jsapi https://www.googleadservices.com https://www.youtube.com https://*.newrelic.com https://*.nr-data.net https://code.jquery.com https://*.firebasedatabase.app https://googleads.g.doubleclick.net https://*.intercom.io https://js.intercomcdn.com https://*.cloudflare.com; style-src 'self' 'unsafe-inline' https://accounts.google.com https://www.gstatic.com https://fonts.googleapis.com https://unpkg.com; img-src 'self' data: blob: https://*.amazonaws.com https://firebasestorage.googleapis.com https://www.google.com/images https://*.ytimg.com https://i.imgur.com gs://additio-messenger.appspot.com *.appspot.com https://*.googleusercontent.com https://*.additioapp.com https://*.gstatic.com https://*.cloudinary.com https://www.google.com https://www.google.es https://googleads.g.doubleclick.net https://*.googleapis.com https://*.intercomassets.com https://*.intercomcdn.com; font-src 'self' https://fonts.gstatic.com https://*.additioapp.com https://*.intercomcdn.com; media-src https://*.additioapp.com https://*.googleapis.com; frame-src 'self' https://js.stripe.com https://announcekit.app https://*.google.com https://*.amazonaws.com https://*.additioapp.com https://www.youtube.com https://*.firebasedatabase.app https://*.googleapis.com https://td.doubleclick.net https://*.cloudflare.com; frame-ancestors https://*.additioapp.com https://teams.microsoft.com https://*.teams.microsoft.com https://edubook-learning.com https://*.edebe.com https://*.pupil.ch https://*.pupil.schule; form-action 'self' https://announcekit.app; connect-src 'self' https: wss:; manifest-src 'self'; base-uri 'self'
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin
Permissions-Policy
Present
geolocation=(), camera=(), microphone=()
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
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