Tools & Wizards About Us
zigzageducation.co.uk screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

zigzageducation.co.uk

ZigZag Education | Teaching Resources for KS3, GCSE, A Level, BTEC, etc.

Page Load Speed

6.2 sec in total

First Response

2.2 sec

Resources Loaded

3.9 sec

Page Rendered

137 ms

zigzageducation.co.uk screenshot

About Website

Visit zigzageducation.co.uk now to see the best up-to-date Zig Zag Education content for United Kingdom and also check out these interesting facts you probably never knew about zigzageducation.co.uk

Course Companions, Revision Guides, Exam Practice for Secondary Schools from ZigZag Education

Visit zigzageducation.co.uk

Key Findings

We analyzed Zigzageducation.co.uk page load time and found that the first response time was 2.2 sec and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

zigzageducation.co.uk performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

71/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

zigzageducation.co.uk

2203 ms

zz-style.css

495 ms

css

25 ms

css

38 ms

css

45 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 56% of them (18 requests) were addressed to the original Zigzageducation.co.uk, 16% (5 requests) were made to Fonts.googleapis.com and 13% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Zigzageducation.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 699.7 kB (62%)

Content Size

1.1 MB

After Optimization

421.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zigzageducation.co.uk main page is 1.1 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. 35% of websites need less resources to load. Javascripts take 739.3 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 14.7 kB

  • Original 21.1 kB
  • After minification 20.0 kB
  • After compression 6.5 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 14.7 kB or 69% of the original size.

Image Optimization

-15%

Potential reduce by 49.7 kB

  • Original 329.4 kB
  • After minification 279.7 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, Zig Zag Education needs image optimization as it can save up to 49.7 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-82%

Potential reduce by 608.9 kB

  • Original 739.3 kB
  • After minification 461.9 kB
  • After compression 130.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 608.9 kB or 82% of the original size.

CSS Optimization

-84%

Potential reduce by 26.4 kB

  • Original 31.6 kB
  • After minification 23.2 kB
  • After compression 5.2 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. Zigzageducation.co.uk needs all CSS files to be minified and compressed as it can save up to 26.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (38%)

Requests Now

26

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zig Zag Education. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zigzageducation.co.uk

zigzageducation.co.uk

2203 ms

zz-style.css

zz-style.css

495 ms

css

css

25 ms

css

css

38 ms

css

css

45 ms

css

css

47 ms

css

css

45 ms

googlefix.js

googlefix.js

205 ms

jquery-1.10.2.js

jquery-1.10.2.js

997 ms

jquery-ui-1.10.4.custom.js

jquery-ui-1.10.4.custom.js

1188 ms

cookie.js

cookie.js

327 ms

Zd2E9abXLFGSr9G3YK2MsDR-eWpsHSw83BRsAQElGgc.ttf

Zd2E9abXLFGSr9G3YK2MsDR-eWpsHSw83BRsAQElGgc.ttf

14 ms

header_pics.png

header_pics.png

412 ms

zzlogo.png

zzlogo.png

102 ms

md1.png

md1.png

759 ms

basket.png

basket.png

105 ms

gplus-64.png

gplus-64.png

110 ms

wordpress1.png

wordpress1.png

120 ms

Twitter1.png

Twitter1.png

119 ms

facebook1.png

facebook1.png

206 ms

Pinterest1.png

Pinterest1.png

216 ms

cards_accepted.png

cards_accepted.png

223 ms

teencancertrust_thumb.jpg

teencancertrust_thumb.jpg

486 ms

wordle.png

wordle.png

234 ms

mini_rss.png

mini_rss.png

330 ms

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

14 ms

ga.js

ga.js

10 ms

yysorIEiYSBb0ylZjg791KtNCIApMuPbUOMNCDUzMbE.ttf

yysorIEiYSBb0ylZjg791KtNCIApMuPbUOMNCDUzMbE.ttf

10 ms

EcjpF2hW5gSZ4M16YLdG850EAVxt0G0biEntp43Qt6E.ttf

EcjpF2hW5gSZ4M16YLdG850EAVxt0G0biEntp43Qt6E.ttf

10 ms

jquery.min.js

jquery.min.js

30 ms

__utm.gif

__utm.gif

24 ms

collect

collect

59 ms

Accessibility Review

zigzageducation.co.uk accessibility score

79

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

Heading elements are not in a sequentially-descending order

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

zigzageducation.co.uk 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

zigzageducation.co.uk SEO score

91

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

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zigzageducation.co.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 Zigzageducation.co.uk main page’s claimed encoding is iso-8859-1. 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

zigzageducation.co.uk

Open Graph description is not detected on the main page of Zig Zag Education. 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: