Open
Cached
·
just now
17
Headers
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
Performance Headers
3 headers
Connection
Performance
close
Transfer-Encoding
Performance
chunked
Vary
Performance
accept-encoding
Caching Headers
1 headers
Last-Modified
Caching
Thu, 05 Feb 2026 14:58:13 GMT
Content Headers
1 headers
Content-Type
Content
text/html
Server Headers
1 headers
Server
Server
cloudflare
CORS Headers
0 headers
No CORS headers found
Cookies Headers
0 headers
No cookies headers found
Other Headers
5 headers
Cf-Cache-Status
Other
DYNAMIC
Cf-Ray
Other
9cae9220ccae2fdf-IAD
Date
Other
Sun, 08 Feb 2026 22:30:19 GMT
Nel
Other
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
Other
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=n6Uv79RHBu4xy%2BixzJT2fRJLr975Mfk997COnak9vL9dl%2Bcuvh6y%2FcWodJVrTwpAoaOpDsOMe12QYThkyeNOdb8XzHMqhaZHDq9rbqYuLeUlnij%2FVg%3D%3D"}]}
Recommendations
Enable compression (gzip/brotli) to improve performance
Add Cache-Control header to optimize caching