Regexone.com Site Title

RegexOne - Learn Regular Expressions - Lesson 1: An Introduction, and the ABCs

Regexone.com Meta Description

RegexOne provides a set of interactive lessons and exercises to help you learn regular expressions

Regexone.com Test Results

regexone.com Mobile Usability: 96/100

Quick overview:
Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 426 CSS pixels wide, but the viewport is only 411 CSS pixels wide. The following elements fall outside the viewport:
The element <div class="col-xs-12 col-sm-12 col-md-9">Lesson 1: An Iā€¦port our site.</div> falls outside the viewport.
...
Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target <div id="abgc" class="abgc">AdChoices</div> is close to 1 other tap targets.
...

regexone.com Mobile Speed: 68/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 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://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/css/bootstrap.min.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://connect.facebook.net/en_US/sdk.js (20 minutes)
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 28.3KiB (97% reduction).
Compressing https://regexone.com/cs/images/icon_tutorial.png could save 14.2KiB (97% reduction).
...

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