Cached · just now
25 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Present
max-age=31557600
Content-Security-Policy
Basic
default-src; script-src; object-src; +9 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
  • Increase HSTS max-age to at least 1 year and add includeSubDomains
  • Improve CSP by adding more specific directives and removing 'unsafe-inline'
  • Consider adding Permissions-Policy to control browser features

Performance Headers

3 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close
Vary
Performance
Cookie,Accept-Encoding

Caching Headers

5 headers
Age
Caching
505048
Cache-Control
Caching
no-store, no-cache, must-revalidate, max-age=0
Etag
Caching
"1767107892"
Expires
Caching
Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified
Caching
Tue, 30 Dec 2025 15:18:12 GMT

Content Headers

3 headers
Content-Language
Content
de
Content-Length
Content
132920
Content-Type
Content
text/html; charset=UTF-8

Server Headers

0 headers
No server headers found

CORS Headers

0 headers
No CORS headers found

Cookies Headers

0 headers
No cookies headers found

Other Headers

8 headers
Alt-Svc
Other
h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400
Date
Other
Mon, 05 Jan 2026 14:10:06 GMT
Link
Other
<https://www.kelio.de/>; rel="alternate"; hreflang="de-DE", <https://www.kelio.be/fr/>; rel="alternate"; hreflang="fr-BE", <https://www.kelio.be/nl/>; rel="alternate"; hreflang="nl-BE", <https://www.kelio.ch/fr/>; rel="alternate"; hreflang="fr-CH", <https://www.kelio.ch/de/>; rel="alternate"; hreflang="de-CH", <https://www.kelio.nl>; rel="alternate"; hreflang="nl-NL", <https://www.kelio.co.uk>; rel="alternate"; hreflang="en-GB", <https://www.kelio.es>; rel="alternate"; hreflang="es-ES", <https://www.kelio.com/fr/>; rel="alternate"; hreflang="fr-FR", <https://www.kelio.com/>; rel="alternate"; hreflang="en", <https://www.kelio.com/fr/>; rel="alternate"; hreflang="x-default"
Version
Other
7
X-Cache
Other
HIT
X-Cache-Hits
Other
0
X-Served-By
Other
cache-iad-kcgs7200040-IAD
X-Timer
Other
S1767622206.400990,VS0,VE2

Recommendations

Enable compression (gzip/brotli) to improve performance