Tools & Wizards About Us

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

sites.wustl.edu

Home | WashU Sites | Washington University in St. Louis

Page Load Speed

2.1 sec in total

First Response

131 ms

Resources Loaded

1.8 sec

Page Rendered

182 ms

About Website

Welcome to sites.wustl.edu homepage info - get ready to check Sites Wu St L best content for United States right away, or after learning these important things about sites.wustl.edu

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Key Findings

We analyzed Sites.wustl.edu page load time and found that the first response time was 131 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

sites.wustl.edu performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value590 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value12.7 s

13/100

10%

Network Requests Diagram

sites.wustl.edu

131 ms

sites.wustl.edu

461 ms

style.min.css

63 ms

style-ppi-single.css

123 ms

style.min.css

185 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 85% of them (72 requests) were addressed to the original Sites.wustl.edu, 7% (6 requests) were made to Fonts.gstatic.com and 5% (4 requests) were made to Bpb-us-w2.wpmucdn.com. The less responsive or slowest element that took the longest time to load (733 ms) belongs to the original domain Sites.wustl.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 235.3 kB (15%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sites.wustl.edu main page is 1.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 55.5 kB

  • Original 75.3 kB
  • After minification 74.6 kB
  • After compression 19.8 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 55.5 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 10.8 kB

  • Original 292.2 kB
  • After minification 281.4 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. Sites Wu St L images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 144.9 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 878.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 144.9 kB or 14% of the original size.

CSS Optimization

-17%

Potential reduce by 24.0 kB

  • Original 139.7 kB
  • After minification 139.7 kB
  • After compression 115.6 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. Sites.wustl.edu needs all CSS files to be minified and compressed as it can save up to 24.0 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (90%)

Requests Now

77

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sites Wu St L. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 59 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

sites.wustl.edu accessibility score

93

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

Best Practices

sites.wustl.edu best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

sites.wustl.edu SEO score

100

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

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 Sites.wustl.edu 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 Sites.wustl.edu 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 description is not detected on the main page of Sites Wu St L. 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: