Tools & Wizards About Us
changeexchange.org.uk screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

changeexchange.org.uk

Change Exchange: Futurists and The National Science And Engineering Week

Page Load Speed

1.6 sec in total

First Response

282 ms

Resources Loaded

1 sec

Page Rendered

344 ms

changeexchange.org.uk screenshot

About Website

Welcome to changeexchange.org.uk homepage info - get ready to check Change Exchange best content right away, or after learning these important things about changeexchange.org.uk

Futurists and The National Science And Engineering Week

Visit changeexchange.org.uk

Key Findings

We analyzed Changeexchange.org.uk page load time and found that the first response time was 282 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

changeexchange.org.uk performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

changeexchange.org.uk

282 ms

css

25 ms

default.css

167 ms

fonts.css

266 ms

img01.png

450 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 86% of them (6 requests) were addressed to the original Changeexchange.org.uk, 14% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (450 ms) belongs to the original domain Changeexchange.org.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 68.2 kB (42%)

Content Size

164.3 kB

After Optimization

96.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Changeexchange.org.uk main page is 164.3 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 122.7 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 5.0 kB

  • Original 8.3 kB
  • After minification 8.2 kB
  • After compression 3.3 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 5.0 kB or 61% of the original size.

Image Optimization

-28%

Potential reduce by 34.2 kB

  • Original 122.7 kB
  • After minification 88.5 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. Obviously, Change Exchange needs image optimization as it can save up to 34.2 kB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-87%

Potential reduce by 29.0 kB

  • Original 33.3 kB
  • After minification 19.2 kB
  • After compression 4.3 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. Changeexchange.org.uk needs all CSS files to be minified and compressed as it can save up to 29.0 kB or 87% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • AJAX
  • Images
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Change Exchange. According to our analytics all requests are already optimized.

Network Requests Diagram

changeexchange.org.uk

changeexchange.org.uk

282 ms

css

css

25 ms

default.css

default.css

167 ms

fonts.css

fonts.css

266 ms

img01.png

img01.png

450 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

275 ms

fontawesome-social-webfont.woff

fontawesome-social-webfont.woff

284 ms

Accessibility Review

changeexchange.org.uk accessibility score

75

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.

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

Links do not have a discernible name

Best Practices

changeexchange.org.uk best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

changeexchange.org.uk SEO score

73

Search Engine Optimization Advices

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 Changeexchange.org.uk 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 Changeexchange.org.uk 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

changeexchange.org.uk

Open Graph description is not detected on the main page of Change Exchange. 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: