Readtheory.org Site Title

ReadTheory | Free Reading Comprehension Practice for Students and Teachers

Readtheory.org Meta Description

Reading comprehension exercises — online, free, & adaptive. Fits K-12, ESL and adult students. Easily track progress for the entire class.

Readtheory.org Test Results

readtheory.org Mobile Usability: 100/100


readtheory.org Mobile Speed: 65/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 5 blocking script resources and 2 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.
Remove render-blocking JavaScript:
https://readtheory.org/static/cU6v3gFdrw4tOpo0Relq96l8V04G3qIY3rqGYYy9lwW.js
...
Optimize CSS Delivery of the following:
https://readtheory.org/static/lP0a4jofphuRRNTj4zVHFUeehh3tF3Nv3fWtdJ1QlmR.css
...
Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 3% of the final above-the-fold content could be rendered with the full HTML response .
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 41.3KiB (79% reduction).
Compressing https://readtheory.org/reading/presentPretest could save 41.3KiB (79% reduction).
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://readtheory.org/static/images/passages/passage_1515a.png (expiration not specified)
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 5.9KiB (33% reduction).
Compressing https://readtheory.org/static/5AayT7f9Ua56gV5gw5fj9WvGyre6im6y2h1Jmco25Hf.png could save 3.3KiB (29% reduction).
...
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 670B (12% reduction).
Minifying https://readtheory.org/static/lP0a4jofphuRRNTj4zVHFUeehh3tF3Nv3fWtdJ1QlmR.css could save 670B (12% reduction) after compression.

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