Tools & Wizards About Us
datashop.cambridge.org screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

datashop.cambridge.org

DataShop - Cambridge University Press

Page Load Speed

1.3 sec in total

First Response

259 ms

Resources Loaded

879 ms

Page Rendered

139 ms

datashop.cambridge.org screenshot

About Website

Click here to check amazing Data Shop Cambridge content for China. Otherwise, check out these important facts you probably never knew about datashop.cambridge.org

Visit datashop.cambridge.org

Key Findings

We analyzed Datashop.cambridge.org page load time and found that the first response time was 259 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

datashop.cambridge.org performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value2.5 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.047

99/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

datashop.cambridge.org

259 ms

styles.css

313 ms

browser_15.0.05b.js

167 ms

staticJavascript.jsp;jsessionid=8E11B326D3F1CEDD8C30B580FB136E9C

404 ms

jquery.min.js

32 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 79% of them (11 requests) were addressed to the original Datashop.cambridge.org, 14% (2 requests) were made to Cambridge.org and 7% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (404 ms) belongs to the original domain Datashop.cambridge.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.5 kB (45%)

Content Size

76.5 kB

After Optimization

42.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Datashop.cambridge.org main page is 76.5 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. Only 10% of websites need less resources to load. Javascripts take 37.6 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 4.3 kB

  • Original 6.7 kB
  • After minification 6.0 kB
  • After compression 2.4 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. This page needs HTML code to be minified as it can gain 731 B, which is 11% 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 4.3 kB or 64% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 305 B
  • After minification 305 B

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. Data Shop Cambridge images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 2.4 kB

  • Original 37.6 kB
  • After minification 37.1 kB
  • After compression 35.2 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

-87%

Potential reduce by 27.8 kB

  • Original 31.8 kB
  • After minification 22.6 kB
  • After compression 4.0 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. Datashop.cambridge.org needs all CSS files to be minified and compressed as it can save up to 27.8 kB or 87% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Shop Cambridge. According to our analytics all requests are already optimized.

Network Requests Diagram

datashop.cambridge.org

datashop.cambridge.org

259 ms

styles.css

styles.css

313 ms

browser_15.0.05b.js

browser_15.0.05b.js

167 ms

staticJavascript.jsp;jsessionid=8E11B326D3F1CEDD8C30B580FB136E9C

staticJavascript.jsp;jsessionid=8E11B326D3F1CEDD8C30B580FB136E9C

404 ms

jquery.min.js

jquery.min.js

32 ms

global_navbar.min.js

global_navbar.min.js

142 ms

global_nav_default.css

global_nav_default.css

159 ms

cambridge_006633.gif

cambridge_006633.gif

83 ms

datashop_006633.gif

datashop_006633.gif

83 ms

button_339900.gif

button_339900.gif

84 ms

strip_background.gif

strip_background.gif

161 ms

title.gif

title.gif

241 ms

shadow.jpg

shadow.jpg

164 ms

register.gif

register.gif

162 ms

Accessibility Review

datashop.cambridge.org accessibility score

54

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

datashop.cambridge.org best practices score

50

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

datashop.cambridge.org 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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datashop.cambridge.org 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 Datashop.cambridge.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

datashop.cambridge.org

Open Graph description is not detected on the main page of Data Shop Cambridge. 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: