Tools & Wizards About Us
physicsinfo.co.uk screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

physicsinfo.co.uk

physicsinfo : Free resources for studying and revision - experiments, videos, and past exam papers.

Page Load Speed

4.7 sec in total

First Response

478 ms

Resources Loaded

2.6 sec

Page Rendered

1.6 sec

physicsinfo.co.uk screenshot

About Website

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

{page/@site} - full resource of images, past exam papers, animations, presentations and more to aid in revision for science, physics, biology and chemistry.

Visit physicsinfo.co.uk

Key Findings

We analyzed Physicsinfo.co.uk page load time and found that the first response time was 478 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

physicsinfo.co.uk performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

65/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.4 s

92/100

10%

Network Requests Diagram

physicsinfo.co.uk

478 ms

main.css

416 ms

jquery-1.5.min.js

917 ms

jquery.qtip.js

1207 ms

main.js

622 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 6% of them (2 requests) were addressed to the original Physicsinfo.co.uk, 94% (32 requests) were made to Core.physicsinfo.co.uk. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Core.physicsinfo.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 148.9 kB (45%)

Content Size

329.8 kB

After Optimization

180.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Physicsinfo.co.uk main page is 329.8 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. Javascripts take 169.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 7.5 kB

  • Original 10.1 kB
  • After minification 9.5 kB
  • After compression 2.5 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 7.5 kB or 75% of the original size.

Image Optimization

-5%

Potential reduce by 6.9 kB

  • Original 144.0 kB
  • After minification 137.1 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. Physicsinfo images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 129.9 kB

  • Original 169.7 kB
  • After minification 131.4 kB
  • After compression 39.9 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 129.9 kB or 76% of the original size.

CSS Optimization

-77%

Potential reduce by 4.6 kB

  • Original 5.9 kB
  • After minification 5.1 kB
  • After compression 1.4 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. Physicsinfo.co.uk needs all CSS files to be minified and compressed as it can save up to 4.6 kB or 77% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Physicsinfo. According to our analytics all requests are already optimized.

Network Requests Diagram

physicsinfo.co.uk

physicsinfo.co.uk

478 ms

main.css

main.css

416 ms

jquery-1.5.min.js

jquery-1.5.min.js

917 ms

jquery.qtip.js

jquery.qtip.js

1207 ms

main.js

main.js

622 ms

header.jpg

header.jpg

235 ms

bg.png

bg.png

111 ms

Edexcel_2011_thumb.jpg

Edexcel_2011_thumb.jpg

106 ms

2011_Edexcel_iGCE_thumb.jpg

2011_Edexcel_iGCE_thumb.jpg

108 ms

2015_Edexcel_A_level_thumb.jpg

2015_Edexcel_A_level_thumb.jpg

221 ms

2018_Edexcel_9-1_GCSE_thumb.jpg

2018_Edexcel_9-1_GCSE_thumb.jpg

204 ms

360Science_thumb.jpg

360Science_thumb.jpg

304 ms

Earth_thumb.jpg

Earth_thumb.jpg

209 ms

Edexcel_A_level_thumb.jpg

Edexcel_A_level_thumb.jpg

209 ms

Electricity_thumb.jpg

Electricity_thumb.jpg

206 ms

Energy_thumb.jpg

Energy_thumb.jpg

303 ms

Forces_&_Motion_thumb.jpg

Forces_&_Motion_thumb.jpg

306 ms

Games_thumb.jpg

Games_thumb.jpg

294 ms

General_Science_thumb.jpg

General_Science_thumb.jpg

294 ms

June_2018_8PH01_thumb.jpg

June_2018_8PH01_thumb.jpg

288 ms

June_2018_8PH02_thumb.jpg

June_2018_8PH02_thumb.jpg

370 ms

June_2018_9PH01_thumb.jpg

June_2018_9PH01_thumb.jpg

385 ms

June_2018_9PH02_thumb.jpg

June_2018_9PH02_thumb.jpg

388 ms

June_2018_9PH03_thumb.jpg

June_2018_9PH03_thumb.jpg

385 ms

Magnetism_thumb.jpg

Magnetism_thumb.jpg

386 ms

Maths_thumb.jpg

Maths_thumb.jpg

386 ms

Mechanics_thumb.jpg

Mechanics_thumb.jpg

469 ms

Medical_thumb.jpg

Medical_thumb.jpg

487 ms

OCR_A_Level_thumb.jpg

OCR_A_Level_thumb.jpg

484 ms

Particles_thumb.jpg

Particles_thumb.jpg

485 ms

Space_thumb.jpg

Space_thumb.jpg

484 ms

Temperature,_Pressure_&_Volume_thumb.jpg

Temperature,_Pressure_&_Volume_thumb.jpg

486 ms

Waves_thumb.jpg

Waves_thumb.jpg

569 ms

Tests.jpg

Tests.jpg

778 ms

Accessibility Review

physicsinfo.co.uk accessibility score

90

Accessibility Issues

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

physicsinfo.co.uk best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

physicsinfo.co.uk SEO score

75

Search Engine Optimization Advices

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 Physicsinfo.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 Physicsinfo.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

physicsinfo.co.uk

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