Dries Buytaert

HTTP Headers Analyzer

6 / 10
https://theloop27.weebly.com/
Website → CloudFlare → Browser
9 missing headers, 1 warnings, 0 notices
Header
Value
Explanation
date
sun, 22 dec 2024 19:44:44 gmt
The date and time at which the request was made. A browser uses it for age calculations rather than using its own internal date and time; e.g. when comparing against Max-Age or Expires.
content-type
text/html; charset=utf-8
The type of the message body, specified as a MIME type.
cf-ray
8f629bb70be2d647-iad
The cf-ray header provides a unique identifier for each request through Cloudflare. It's useful for troubleshooting and tracking requests in Cloudflare logs.
cf-cache-status
dynamic
Warning The dynamic status indicates that Cloudflare did not cache the requested HTML page, similar to a "cache miss". By default, Cloudflare caches static assets such as images, CSS, and JavaScript but excludes HTML due to its dynamic nature. To cache HTML content, change the 'Cache Level' setting from dynamic to cache everything in Cloudflare. This adjustment allows HTML pages to be cached, leveraging Cloudflare's global network for faster and more efficient content delivery.
server
cloudflare
strict-transport-security
missing Add a Strict-Transport-Security header. The Strict-Transport-Security header or HSTS header is used to instruct browsers to only use HTTPS, instead of using HTTP. It helps enforce secure communication.
content-security-policy
missing Add a Content-Security-Policy header. The Content-Security-Policy header helps browsers prevent cross site scripting (XSS) and data injection attacks.
referrer-policy
missing Add a Referrer-Policy header. When a visitor navigates from one page to another, browsers often pass along referrer information. The Referrer-Policy header controls how much referrer information a browser can share. This is important to configure when private information is embedded in the path or query string and passed onto an external destination.
permissions-policy
missing Add a Permissions-Policy header. Restrict access to device features like the camera, microphone, location, accelerometer and much more.
cross-origin-embedder-policy
missing Add a Cross-Origin-Embedder-Policy to specify how this page can be loaded by cross-origin resources.
cross-origin-opener-policy
missing Add a Cross-Origin-Opener-Policy header to opt-in into better browser isolation.
cross-origin-resource-policy
missing Add a Cross-Origin-Resource-Policy header to specify who can load this page.
x-frame-options
missing Add a X-Frame-Options header. The X-Frame-Options header prevents this URL from being embedded in an iframe. This protects against clickjacking attacks. Alternatively, set a Content-Security-Policy header with a frame-ancestor directive.
x-permitted-cross-domain-policies
missing Add a X-Permitted-Cross-Domain-Policies header to prevent Flash, Adobe Reader and other clients from sharing data across domains.

Questions or feedback? Email dries@buytaert.net.