Tools & Wizards About Us
math.colorado.edu screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    73% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

math.colorado.edu

Department of Mathematics | University of Colorado Boulder

Page Load Speed

1.1 sec in total

First Response

132 ms

Resources Loaded

779 ms

Page Rendered

158 ms

math.colorado.edu screenshot

About Website

Visit math.colorado.edu now to see the best up-to-date Math Colorado content for United States and also check out these interesting facts you probably never knew about math.colorado.edu

Visit math.colorado.edu

Key Findings

We analyzed Math.colorado.edu page load time and found that the first response time was 132 ms and then it took 937 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

math.colorado.edu performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

49/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.141

78/100

15%

TTI (Time to Interactive)

Value10.5 s

24/100

10%

Network Requests Diagram

math.colorado.edu

132 ms

345 ms

math.css

83 ms

submit.png

89 ms

mathBldg.jpg

224 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 8% of them (1 request) were addressed to the original Math.colorado.edu, 92% (11 requests) were made to Colorado.edu. The less responsive or slowest element that took the longest time to load (345 ms) relates to the external source Colorado.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 13.2 kB (6%)

Content Size

217.6 kB

After Optimization

204.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Math.colorado.edu main page is 217.6 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. Only 10% of websites need less resources to load. Images take 205.5 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 4.1 kB

  • Original 6.4 kB
  • After minification 5.8 kB
  • After compression 2.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 4.1 kB or 64% of the original size.

Image Optimization

-2%

Potential reduce by 5.0 kB

  • Original 205.5 kB
  • After minification 200.5 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. Math Colorado images are well optimized though.

CSS Optimization

-72%

Potential reduce by 4.1 kB

  • Original 5.7 kB
  • After minification 4.7 kB
  • After compression 1.6 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. Math.colorado.edu needs all CSS files to be minified and compressed as it can save up to 4.1 kB or 72% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • Images
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Math Colorado. According to our analytics all requests are already optimized.

Network Requests Diagram

math.colorado.edu

math.colorado.edu

132 ms

345 ms

math.css

math.css

83 ms

submit.png

submit.png

89 ms

mathBldg.jpg

mathBldg.jpg

224 ms

give-now-blue.png

give-now-blue.png

119 ms

whiteGoldBack.jpg

whiteGoldBack.jpg

48 ms

doubleBG.png

doubleBG.png

203 ms

banner_black.png

banner_black.png

105 ms

blueGradient.jpg

blueGradient.jpg

96 ms

footerCurve.gif

footerCurve.gif

94 ms

print_styles.css

print_styles.css

45 ms

Accessibility Review

math.colorado.edu 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

math.colorado.edu best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

math.colorado.edu SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Math.colorado.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Math.colorado.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

math.colorado.edu

Open Graph description is not detected on the main page of Math Colorado. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: