Tools & Wizards About Us

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

coronavirus.uwhealth.org

COVID-19 | Conditions | UW Health

Page Load Speed

1.5 sec in total

First Response

44 ms

Resources Loaded

700 ms

Page Rendered

754 ms

About Website

Visit coronavirus.uwhealth.org now to see the best up-to-date Coronavirus UW Health content for United States and also check out these interesting facts you probably never knew about coronavirus.uwhealth.org

COVID-19 is a new disease, caused by a coronavirus that has not previously been seen in humans. It affects people of all ages differently.

Visit coronavirus.uwhealth.org

Key Findings

We analyzed Coronavirus.uwhealth.org page load time and found that the first response time was 44 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

coronavirus.uwhealth.org performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value970 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.07

96/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

coronavirus.uwhealth.org

44 ms

coronavirus.uwhealth.org

16 ms

covid-19

144 ms

49724dcd4e568229.css

86 ms

5c8aad4786f69009.css

109 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Coronavirus.uwhealth.org, 71% (24 requests) were made to Uwhealth.org and 15% (5 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (461 ms) relates to the external source Res.cloudinary.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 156.5 kB (56%)

Content Size

278.4 kB

After Optimization

121.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Coronavirus.uwhealth.org main page is 278.4 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. 35% of websites need less resources to load. HTML takes 190.9 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 156.5 kB

  • Original 190.9 kB
  • After minification 190.9 kB
  • After compression 34.4 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 156.5 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 87.5 kB
  • After minification 87.5 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. Coronavirus UW Health images are well optimized though.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 5 B

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.

Requests Breakdown

Number of requests can be reduced by 16 (62%)

Requests Now

26

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coronavirus UW Health. 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 as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

coronavirus.uwhealth.org accessibility score

89

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

[aria-hidden="true"] elements contain focusable descendents

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

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.

Best Practices

coronavirus.uwhealth.org best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

coronavirus.uwhealth.org SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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 Coronavirus.uwhealth.org 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 Coronavirus.uwhealth.org 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 Coronavirus UW Health. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: