Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

cdsw.uchicago.edu

CDC Reporting Site

Page Load Speed

515 ms in total

First Response

89 ms

Resources Loaded

185 ms

Page Rendered

241 ms

cdsw.uchicago.edu screenshot

About Website

Click here to check amazing Cdsw Uchicago content for United States. Otherwise, check out these important facts you probably never knew about cdsw.uchicago.edu

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Key Findings

We analyzed Cdsw.uchicago.edu page load time and found that the first response time was 89 ms and then it took 426 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

cdsw.uchicago.edu performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value0.8 s

100/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.7 s

91/100

10%

Network Requests Diagram

cdsw.uchicago.edu

89 ms

MainPage.css

32 ms

Graniteemeraldpearl.jpg

51 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that all of those requests were addressed to Cdsw.uchicago.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (89 ms) belongs to the original domain Cdsw.uchicago.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 614 B (3%)

Content Size

18.1 kB

After Optimization

17.5 kB

In fact, the total size of Cdsw.uchicago.edu main page is 18.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 17.0 kB which makes up the majority of the site volume.

HTML Optimization

-39%

Potential reduce by 167 B

  • Original 424 B
  • After minification 392 B
  • After compression 257 B

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 167 B or 39% of the original size.

Image Optimization

-0%

Potential reduce by 17 B

  • Original 17.0 kB
  • After minification 16.9 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. Cdsw Uchicago images are well optimized though.

CSS Optimization

-62%

Potential reduce by 430 B

  • Original 692 B
  • After minification 614 B
  • After compression 262 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. Cdsw.uchicago.edu needs all CSS files to be minified and compressed as it can save up to 430 B or 62% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

2

After Optimization

2

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdsw Uchicago. According to our analytics all requests are already optimized.

Accessibility Review

cdsw.uchicago.edu accessibility score

49

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

cdsw.uchicago.edu best practices score

75

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

Serves images with low resolution

SEO Factors

cdsw.uchicago.edu SEO score

58

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cdsw.uchicago.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 Cdsw.uchicago.edu main page’s claimed encoding is . 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

Open Graph description is not detected on the main page of Cdsw Uchicago. 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: