Mathforum.org Site Title
Classroom Resources - National Council of Teachers of Mathematics
Mathforum.org Test Results
mathforum.org Mobile Usability: 95/100
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 758 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:
The element
<div id="google_ads_ifr…0__container__"> 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
<a href="https://youtu.be/a-Fth6sOaRA">Ignite Video b…They'd Notice?</a> and 2 others are close to other tap targets.
...
mathforum.org Mobile Speed: 60/100
Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 9 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.
https://www.nctm.org/WorkArea/FrameworkUI/js/ektron.javascript.ashx?id=-569449246+-1939951303+-1080527330+-1687560804+-1793043690+27274999+2009761168+1762586108+561009152+1079002152+1881432062+-1562465382+646551512
...
Optimize CSS Delivery of the following:
https://www.nctm.org/WorkArea/FrameworkUI/css/ektron.stylesheet.ashx?id=-1759591071+-300771134+1985268503+-36998765+-945890804+1685391245
...
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://marco.feathr.co/v1/refresh (expiration not specified)
...
Reduce server response time
In our test, your server responded in 0.43 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 3KiB (11% reduction).
Minifying https://www.nctm.org/mathforum/ could save 3KiB (11% reduction) after compression.
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 2.1KiB (16% reduction).
Minifying https://www.nctm.org/assets/css/nctm-main.css could save 2.1KiB (16% reduction) after compression.
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 142B (49% reduction).
Compressing https://polo.feathr.co/v1/analytics/match/script.js?pk=feathr could save 142B (49% reduction).
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