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cityofchicago.org screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    35% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

cityofchicago.org

City of Chicago

Page Load Speed

3.1 sec in total

First Response

251 ms

Resources Loaded

2.4 sec

Page Rendered

459 ms

cityofchicago.org screenshot

About Website

Click here to check amazing City Of Chicago content for United States. Otherwise, check out these important facts you probably never knew about cityofchicago.org

Welcome to the official City of Chicago Website. The source for information about City services, departments, programs and initiatives, and officials for Chicago residents, businesses, and visitors.

Visit cityofchicago.org

Key Findings

We analyzed Cityofchicago.org page load time and found that the first response time was 251 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

cityofchicago.org performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value1,670 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.102

89/100

15%

TTI (Time to Interactive)

Value21.8 s

1/100

10%

Network Requests Diagram

www.cityofchicago.org

251 ms

www.chicago.gov

153 ms

en.html

90 ms

main.min.css

292 ms

all.min.css

245 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Cityofchicago.org, 38% (29 requests) were made to Chicago.gov and 12% (9 requests) were made to Webapps1.chicago.gov. The less responsive or slowest element that took the longest time to load (696 ms) relates to the external source Chicago.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 732.5 kB (36%)

Content Size

2.1 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cityofchicago.org main page is 2.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 61.8 kB

  • Original 77.3 kB
  • After minification 67.4 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 9.9 kB, which is 13% 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 61.8 kB or 80% of the original size.

Image Optimization

-42%

Potential reduce by 638.7 kB

  • Original 1.5 MB
  • After minification 869.1 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, City Of Chicago needs image optimization as it can save up to 638.7 kB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 5.4 kB

  • Original 307.0 kB
  • After minification 307.0 kB
  • After compression 301.6 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

-17%

Potential reduce by 26.6 kB

  • Original 160.0 kB
  • After minification 160.0 kB
  • After compression 133.4 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. Cityofchicago.org needs all CSS files to be minified and compressed as it can save up to 26.6 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (46%)

Requests Now

70

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of City Of Chicago. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cityofchicago.org

www.cityofchicago.org

251 ms

www.chicago.gov

www.chicago.gov

153 ms

en.html

en.html

90 ms

main.min.css

main.min.css

292 ms

all.min.css

all.min.css

245 ms

cds.css

cds.css

35 ms

jquery.min.js

jquery.min.js

52 ms

coc-cds.css

coc-cds.css

40 ms

element.js

element.js

68 ms

flickity.pkgd.min.js

flickity.pkgd.min.js

67 ms

flickity.min.css

flickity.min.css

51 ms

popper.min.js

popper.min.js

50 ms

bootstrap.min.js

bootstrap.min.js

56 ms

uswds.min.js

uswds.min.js

244 ms

js

js

87 ms

css

css

34 ms

css

css

52 ms

css

css

56 ms

safari-pinned-tab.svg

safari-pinned-tab.svg

115 ms

icon-dot-gov.svg

icon-dot-gov.svg

111 ms

icon-https.svg

icon-https.svg

112 ms

chicago.gov-logo.png

chicago.gov-logo.png

121 ms

close.svg

close.svg

120 ms

chicago-star.png

chicago-star.png

122 ms

covidvac2.png

covidvac2.png

221 ms

twh.logo.png

twh.logo.png

327 ms

support-new-arrivals.png

support-new-arrivals.png

328 ms

Mayor-Brandon-Johnson.png

Mayor-Brandon-Johnson.png

329 ms

payutilities.png

payutilities.png

326 ms

Jobs-Icon.png

Jobs-Icon.png

696 ms

paytickets.png

paytickets.png

421 ms

Street-Operations.png

Street-Operations.png

420 ms

senior-safety-ordinance.png

senior-safety-ordinance.png

569 ms

CHI311website.jpg

CHI311website.jpg

419 ms

publicsafetyreform-sm.png

publicsafetyreform-sm.png

423 ms

Retiree-Health.jpg

Retiree-Health.jpg

556 ms

cannabis-200x200-1.png

cannabis-200x200-1.png

555 ms

seesomethingsaysomething.jpg

seesomethingsaysomething.jpg

535 ms

CAP-2022-Button-200x200.jpg

CAP-2022-Button-200x200.jpg

562 ms

crplogo.png

crplogo.png

614 ms

city_seal_clr.png

city_seal_clr.png

558 ms

st.js

st.js

118 ms

angle-arrow-down-primary.svg

angle-arrow-down-primary.svg

109 ms

angle-arrow-down.svg

angle-arrow-down.svg

105 ms

font

font

153 ms

font

font

105 ms

font

font

105 ms

fa-solid-900.woff

fa-solid-900.woff

344 ms

fa-regular-400.woff

fa-regular-400.woff

105 ms

2019August.jpg

2019August.jpg

616 ms

fa-brands-400.woff

fa-brands-400.woff

214 ms

FC8Ksdtmv1_V-kqBZqbB.json

FC8Ksdtmv1_V-kqBZqbB.json

46 ms

land-acknowledgement-final.png

land-acknowledgement-final.png

528 ms

new_embed-2552d8d62d9c60f59b3b11a5d083d1ebd090c72de809fc7c76fb339825302241.css

new_embed-2552d8d62d9c60f59b3b11a5d083d1ebd090c72de809fc7c76fb339825302241.css

96 ms

en-us.js

en-us.js

111 ms

js

js

59 ms

siteanalyze_6451.js

siteanalyze_6451.js

109 ms

UC_D8Pvo7pWx3H_rie9XB-tg.json

UC_D8Pvo7pWx3H_rie9XB-tg.json

66 ms

js

js

58 ms

analytics.js

analytics.js

16 ms

mqdefault.jpg

mqdefault.jpg

135 ms

mqdefault.jpg

mqdefault.jpg

140 ms

mqdefault.jpg

mqdefault.jpg

157 ms

sWHFLUOMbgo

sWHFLUOMbgo

179 ms

collect

collect

84 ms

cc.js

cc.js

632 ms

collect

collect

54 ms

image.aspx

image.aspx

37 ms

ga-audiences

ga-audiences

113 ms

www-player.css

www-player.css

9 ms

www-embed-player.js

www-embed-player.js

48 ms

base.js

base.js

89 ms

ad_status.js

ad_status.js

288 ms

qpyvZYiO2MAIFFZ1w1cPPnd-o4I1izwn5tcH8iv7L0M.js

qpyvZYiO2MAIFFZ1w1cPPnd-o4I1izwn5tcH8iv7L0M.js

144 ms

embed.js

embed.js

76 ms

id

id

38 ms

Accessibility Review

cityofchicago.org accessibility score

98

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

Best Practices

cityofchicago.org 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

High

Page has valid source maps

SEO Factors

cityofchicago.org SEO score

99

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 Cityofchicago.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 Cityofchicago.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

cityofchicago.org

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