Tools & Wizards About Us

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 95

    SEO

    Google-friendlier than
    90% of websites

exploremath.com

Gizmos | STEM Simulations & Virtual Labs

Page Load Speed

2.7 sec in total

First Response

276 ms

Resources Loaded

2 sec

Page Rendered

486 ms

About Website

Click here to check amazing Exploremath content. Otherwise, check out these important facts you probably never knew about exploremath.com

The world's largest library of math and science simulations. | Gizmos

Visit exploremath.com

Key Findings

We analyzed Exploremath.com page load time and found that the first response time was 276 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

exploremath.com performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value1,460 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.777

5/100

15%

TTI (Time to Interactive)

Value22.2 s

1/100

10%

Network Requests Diagram

gizmos.explorelearning.com

276 ms

css-main

381 ms

css-main-min

124 ms

main.css

324 ms

help-center.css

279 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Exploremath.com, 15% (7 requests) were made to Use.typekit.net and 11% (5 requests) were made to Fast.wistia.com. The less responsive or slowest element that took the longest time to load (492 ms) relates to the external source Gizmos.explorelearning.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 99.6 kB (14%)

Content Size

704.1 kB

After Optimization

604.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Exploremath.com main page is 704.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Javascripts take 343.0 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 70.3 kB

  • Original 85.9 kB
  • After minification 57.7 kB
  • After compression 15.6 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 28.2 kB, which is 33% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 70.3 kB or 82% of the original size.

Image Optimization

-13%

Potential reduce by 28.9 kB

  • Original 230.6 kB
  • After minification 201.7 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Exploremath needs image optimization as it can save up to 28.9 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 343.0 kB
  • After minification 343.0 kB
  • After compression 343.0 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 453 B

  • Original 44.6 kB
  • After minification 44.5 kB
  • After compression 44.1 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Exploremath.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (49%)

Requests Now

35

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Exploremath. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

exploremath.com accessibility score

96

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

exploremath.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

exploremath.com SEO score

95

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Exploremath.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Exploremath.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph data is detected on the main page of Exploremath. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: