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schoolphysics.co.uk screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

schoolphysics.co.uk

schoolphysics ::Welcome::

Page Load Speed

1.2 sec in total

First Response

269 ms

Resources Loaded

830 ms

Page Rendered

137 ms

schoolphysics.co.uk screenshot

About Website

Click here to check amazing Schoolphysics content for United States. Otherwise, check out these important facts you probably never knew about schoolphysics.co.uk

This is the website for both students and teachers of Physics whether studied as a single subject or as part of a combined science course. The site is particularly useful for those in the UK studying ...

Visit schoolphysics.co.uk

Key Findings

We analyzed Schoolphysics.co.uk page load time and found that the first response time was 269 ms and then it took 967 ms 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

schoolphysics.co.uk performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

schoolphysics.co.uk

269 ms

style.css

90 ms

urchin.js

23 ms

spark.gif

273 ms

logo-sp.gif

170 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 90% of them (18 requests) were addressed to the original Schoolphysics.co.uk, 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (449 ms) belongs to the original domain Schoolphysics.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 34.4 kB (52%)

Content Size

65.6 kB

After Optimization

31.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Schoolphysics.co.uk main page is 65.6 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. 15% of websites need less resources to load. CSS take 30.3 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 6.8 kB

  • Original 9.5 kB
  • After minification 8.2 kB
  • After compression 2.7 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 1.3 kB, which is 14% 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 6.8 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 2 B

  • Original 19.0 kB
  • After minification 19.0 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. Schoolphysics images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 971 B

  • Original 6.8 kB
  • After minification 6.8 kB
  • After compression 5.9 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 971 B or 14% of the original size.

CSS Optimization

-88%

Potential reduce by 26.6 kB

  • Original 30.3 kB
  • After minification 20.1 kB
  • After compression 3.7 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. Schoolphysics.co.uk needs all CSS files to be minified and compressed as it can save up to 26.6 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

19

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schoolphysics. According to our analytics all requests are already optimized.

Network Requests Diagram

schoolphysics.co.uk

schoolphysics.co.uk

269 ms

style.css

style.css

90 ms

urchin.js

urchin.js

23 ms

spark.gif

spark.gif

273 ms

logo-sp.gif

logo-sp.gif

170 ms

sciencexp-banner.png

sciencexp-banner.png

174 ms

alert.gif

alert.gif

187 ms

bookcover.jpg

bookcover.jpg

395 ms

__utm.gif

__utm.gif

11 ms

bg-pagefade.gif

bg-pagefade.gif

100 ms

bg-reflection.gif

bg-reflection.gif

164 ms

bg-homeplane.gif

bg-homeplane.gif

164 ms

button-blue-lo.gif

button-blue-lo.gif

172 ms

button-green-lo.gif

button-green-lo.gif

198 ms

button-orange-lo.gif

button-orange-lo.gif

229 ms

button-purple-lo.gif

button-purple-lo.gif

234 ms

button-brown-lo.gif

button-brown-lo.gif

237 ms

bg-hands-04.gif

bg-hands-04.gif

449 ms

book-top.gif

book-top.gif

294 ms

book-bottom.gif

book-bottom.gif

312 ms

Accessibility Review

schoolphysics.co.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.

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

Form elements do not have associated labels

Best Practices

schoolphysics.co.uk best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

schoolphysics.co.uk SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    N/A

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

schoolphysics.co.uk

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