Jwt.io Site Title

JSON Web Tokens - jwt.io

Jwt.io Meta Description

JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is digitally signed using JSON Web Signature (JWS).

Jwt.io Test Results

jwt.io Mobile Usability: 100/100


jwt.io Mobile Speed: 40/100

Quick overview:
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 1.1MiB (73% reduction).
Compressing https://jwt.io/js/index.js could save 686.2KiB (70% reduction).
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
https://jwt.io/css/google-roboto-mono.css
...
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://cdn.auth0.com/fonts/budicons/fonts/budicon-font.woff (expiration not specified)
...
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 7.5KiB (15% reduction).
Minifying https://jwt.io/css/budicon.css could save 5.1KiB (13% reduction).
...

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