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cosi.org screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

cosi.org

Center of Science and Industry - COSI

Page Load Speed

1.4 sec in total

First Response

46 ms

Resources Loaded

1.1 sec

Page Rendered

334 ms

cosi.org screenshot

About Website

Visit cosi.org now to see the best up-to-date COSI content for United States and also check out these interesting facts you probably never knew about cosi.org

COSI Columbus strives to engage, inspire, and transform lives and communities by being the best partner in science, technology, and industry learning.

Visit cosi.org

Key Findings

We analyzed Cosi.org page load time and found that the first response time was 46 ms and then it took 1.4 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

cosi.org performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value10.0 s

26/100

10%

Network Requests Diagram

cosi.org

46 ms

cosi.org

181 ms

JoerI1PiOn114vt6RCE5z7FGUX8.js

27 ms

style.css

33 ms

theme.css.php

98 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 70% of them (48 requests) were addressed to the original Cosi.org, 9% (6 requests) were made to Fonts.gstatic.com and 6% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (842 ms) belongs to the original domain Cosi.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 216.9 kB (7%)

Content Size

3.3 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cosi.org main page is 3.3 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. 75% 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 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 41.2 kB

  • Original 50.9 kB
  • After minification 40.8 kB
  • After compression 9.7 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 10.1 kB, which is 20% 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 41.2 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 145.7 kB

  • Original 3.0 MB
  • After minification 2.9 MB

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. COSI images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 5.6 kB

  • Original 101.7 kB
  • After minification 101.7 kB
  • After compression 96.1 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

-24%

Potential reduce by 24.4 kB

  • Original 103.4 kB
  • After minification 103.4 kB
  • After compression 79.0 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. Cosi.org needs all CSS files to be minified and compressed as it can save up to 24.4 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (55%)

Requests Now

56

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COSI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cosi.org

cosi.org

46 ms

cosi.org

cosi.org

181 ms

JoerI1PiOn114vt6RCE5z7FGUX8.js

JoerI1PiOn114vt6RCE5z7FGUX8.js

27 ms

style.css

style.css

33 ms

theme.css.php

theme.css.php

98 ms

theme.css.php

theme.css.php

117 ms

font-awesome.min.css

font-awesome.min.css

48 ms

nucleus.css

nucleus.css

42 ms

hydrogen_9.css

hydrogen_9.css

44 ms

bootstrap-gantry.css

bootstrap-gantry.css

49 ms

joomla.css

joomla.css

59 ms

icomoon.css

icomoon.css

57 ms

hydrogen-joomla_9.css

hydrogen-joomla_9.css

76 ms

custom_9.css

custom_9.css

60 ms

jquery.min.js

jquery.min.js

148 ms

jquery-noconflict.js

jquery-noconflict.js

125 ms

jquery-migrate.min.js

jquery-migrate.min.js

129 ms

caption.js

caption.js

132 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

105 ms

responsivemenu.js.php

responsivemenu.js.php

139 ms

bootstrap.min.js

bootstrap.min.js

188 ms

2414cb58546c0799bd4a2c5.js

2414cb58546c0799bd4a2c5.js

34 ms

js

js

77 ms

font-awesome.css

font-awesome.css

53 ms

jquery.pfancybox.css

jquery.pfancybox.css

132 ms

jquery.pfancybox.js

jquery.pfancybox.js

138 ms

jquery.pfancybox-media.js

jquery.pfancybox-media.js

140 ms

soldOutTravelBanner.php

soldOutTravelBanner.php

842 ms

all.css

all.css

51 ms

main.js

main.js

160 ms

css

css

37 ms

css

css

53 ms

css

css

56 ms

css

css

23 ms

analytics.js

analytics.js

247 ms

292 ms

bannerHours.php

bannerHours.php

243 ms

156 ms

cherio_bkgd.gif

cherio_bkgd.gif

96 ms

60Logo_Orange.svg

60Logo_Orange.svg

141 ms

Icons_COSI-Connects.png

Icons_COSI-Connects.png

95 ms

Icons_ACCOUNT-E.png

Icons_ACCOUNT-E.png

117 ms

icons_ticket.png

icons_ticket.png

121 ms

Icons_DONATE-B.png

Icons_DONATE-B.png

119 ms

background_img.jpg

background_img.jpg

184 ms

titanic-nowopen.png

titanic-nowopen.png

169 ms

CAD_2024-JUNE_Tier1.png

CAD_2024-JUNE_Tier1.png

154 ms

NatureofColorTier1_NowOpen.jpg

NatureofColorTier1_NowOpen.jpg

140 ms

aurora_lights_of_wonder_NowShowing.jpg

aurora_lights_of_wonder_NowShowing.jpg

193 ms

IMLS-Award-2023-Winner-tier1.png

IMLS-Award-2023-Winner-tier1.png

167 ms

DB3Re-Brandinghomepage.jpg

DB3Re-Brandinghomepage.jpg

191 ms

AdmissionSave5dollars_564x269.png

AdmissionSave5dollars_564x269.png

190 ms

Connects_kits_Website_ad_564x269_UPDATE2024.png

Connects_kits_Website_ad_564x269_UPDATE2024.png

190 ms

AdditionalParkingmap2023.png

AdditionalParkingmap2023.png

209 ms

down-bg.png

down-bg.png

207 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

69 ms

Roboto-Regular-webfont.woff

Roboto-Regular-webfont.woff

182 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

80 ms

Roboto-Medium-webfont.woff

Roboto-Medium-webfont.woff

201 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

91 ms

KFOkCnqEu92Fr1MmgVxIIzc.ttf

KFOkCnqEu92Fr1MmgVxIIzc.ttf

101 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

103 ms

Roboto-Bold-webfont.woff

Roboto-Bold-webfont.woff

190 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

102 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

42 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

213 ms

collect

collect

43 ms

collect

collect

50 ms

ga-audiences

ga-audiences

35 ms

Accessibility Review

cosi.org accessibility score

82

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

[id] attributes on active, focusable elements are not unique

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

Links do not have a discernible name

Best Practices

cosi.org best practices score

75

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

Browser errors were logged to the console

SEO Factors

cosi.org SEO score

81

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

High

Image elements do not have [alt] attributes

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 Cosi.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 Cosi.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

cosi.org

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