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blitzschool.co.uk screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    60% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 95% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

blitzschool.co.uk

Home | Blitz School WW2 primary history workshop for KS1 & KS2

Page Load Speed

1.6 sec in total

First Response

391 ms

Resources Loaded

1.1 sec

Page Rendered

101 ms

blitzschool.co.uk screenshot

About Website

Visit blitzschool.co.uk now to see the best up-to-date Blitz School content and also check out these interesting facts you probably never knew about blitzschool.co.uk

A WW2 primary history workshop for UK primary schools with an interactive timeline, artefact handling, blackout, first aid and stirrup pump activities for Key Stage 1 and Key Stage 2

Visit blitzschool.co.uk

Key Findings

We analyzed Blitzschool.co.uk page load time and found that the first response time was 391 ms and then it took 1.2 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

blitzschool.co.uk performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value960 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

www.blitzschool.co.uk

391 ms

minified.js

80 ms

focus-within-polyfill.js

72 ms

polyfill.min.js

167 ms

bootstrap-features.1a99b4a8.bundle.min.js

228 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Blitzschool.co.uk, 61% (19 requests) were made to Static.parastorage.com and 23% (7 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (505 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 40 B (0%)

Content Size

96.9 kB

After Optimization

96.8 kB

  • Images
  • JavaScript

In fact, the total size of Blitzschool.co.uk main page is 96.9 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. 35% of websites need less resources to load. Javascripts take 62.2 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 34.7 kB
  • After minification 34.7 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. Blitz School images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 48 B

  • Original 62.2 kB
  • After minification 62.2 kB
  • After compression 62.1 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.

Requests Breakdown

Number of requests can be reduced by 10 (43%)

Requests Now

23

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blitz School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.blitzschool.co.uk

www.blitzschool.co.uk

391 ms

minified.js

minified.js

80 ms

focus-within-polyfill.js

focus-within-polyfill.js

72 ms

polyfill.min.js

polyfill.min.js

167 ms

bootstrap-features.1a99b4a8.bundle.min.js

bootstrap-features.1a99b4a8.bundle.min.js

228 ms

main.24eb524d.bundle.min.js

main.24eb524d.bundle.min.js

269 ms

lodash.min.js

lodash.min.js

227 ms

react.production.min.js

react.production.min.js

227 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

264 ms

counter.js

counter.js

269 ms

wix-perf-measure.bundle.min.js

wix-perf-measure.bundle.min.js

197 ms

react-dom.production.min.js

react-dom.production.min.js

199 ms

opt%20logo-1.jpg

opt%20logo-1.jpg

296 ms

WW2-primary-school-workshop-first-aid.jpg

WW2-primary-school-workshop-first-aid.jpg

298 ms

girl-medals-vignetted.jpg

girl-medals-vignetted.jpg

369 ms

WW2-workshop-for-primary-schools.jpg

WW2-workshop-for-primary-schools.jpg

349 ms

WW2-primary-school-lesson-light.jpg

WW2-primary-school-lesson-light.jpg

342 ms

WW2-22.jpg

WW2-22.jpg

385 ms

DSC_0030-(2).jpg

DSC_0030-(2).jpg

505 ms

t.php

t.php

152 ms

p0A1C4_gK5NzKtuGSwNurQ.woff

p0A1C4_gK5NzKtuGSwNurQ.woff

16 ms

h3r77AwDsldr1E_2g4qqGBsxEYwM7FgeyaSgU71cLG0.woff

h3r77AwDsldr1E_2g4qqGBsxEYwM7FgeyaSgU71cLG0.woff

15 ms

aDjpMND83pDErGXlVEr-SRsxEYwM7FgeyaSgU71cLG0.woff

aDjpMND83pDErGXlVEr-SRsxEYwM7FgeyaSgU71cLG0.woff

15 ms

9VWMTeb5jtXkNoTv949NpRsxEYwM7FgeyaSgU71cLG0.woff

9VWMTeb5jtXkNoTv949NpRsxEYwM7FgeyaSgU71cLG0.woff

15 ms

deprecation-en.v5.html

deprecation-en.v5.html

6 ms

bolt-performance

bolt-performance

34 ms

deprecation-style.v5.css

deprecation-style.v5.css

12 ms

right-arrow.svg

right-arrow.svg

10 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

7 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

4 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

7 ms

Accessibility Review

blitzschool.co.uk accessibility score

98

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

blitzschool.co.uk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

blitzschool.co.uk SEO score

100

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

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 Blitzschool.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 Blitzschool.co.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

blitzschool.co.uk

Open Graph description is not detected on the main page of Blitz School. 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: