Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

teachitscience.co.uk

KS3-4 science | Resources for the classroom |Teachit

Page Load Speed

3.1 sec in total

First Response

1.1 sec

Resources Loaded

1.6 sec

Page Rendered

416 ms

teachitscience.co.uk screenshot

About Website

Click here to check amazing Teachit Science content for United Kingdom. Otherwise, check out these important facts you probably never knew about teachitscience.co.uk

Hundreds of science teaching resources for the KS3 and GCSE science classroom including worksheets, lessons ideas and learning activities, all written and edited by experienced teachers. Free PDFs.

Visit teachitscience.co.uk

Key Findings

We analyzed Teachitscience.co.uk page load time and found that the first response time was 1.1 sec and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

teachitscience.co.uk performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value11,150 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value41.8 s

0/100

10%

Network Requests Diagram

teachitscience.co.uk

1074 ms

95 ms

science

11 ms

defer.js

9 ms

js

62 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Teachitscience.co.uk, 69% (33 requests) were made to Teachit.co.uk and 13% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Teachitscience.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 172.1 kB (45%)

Content Size

385.6 kB

After Optimization

213.6 kB

In fact, the total size of Teachitscience.co.uk main page is 385.6 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. 60% of websites need less resources to load. HTML takes 209.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 171.5 kB

  • Original 209.7 kB
  • After minification 186.2 kB
  • After compression 38.2 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 23.4 kB, 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 171.5 kB or 82% of the original size.

JavaScript Optimization

-0%

Potential reduce by 182 B

  • Original 122.6 kB
  • After minification 122.6 kB
  • After compression 122.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 420 B

  • Original 53.3 kB
  • After minification 53.3 kB
  • After compression 52.9 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. Teachitscience.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 32 (82%)

Requests Now

39

After Optimization

7

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teachit Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

teachitscience.co.uk accessibility score

93

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

Best Practices

teachitscience.co.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

teachitscience.co.uk SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Teachitscience.co.uk 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 Teachitscience.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

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