Tools & Wizards About Us
plutoniumscience.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

plutoniumscience.com

Plutonium Science – Promoting School Science education by providing FREE help, advice and resources to students, parents and teachers

Page Load Speed

1.3 sec in total

First Response

13 ms

Resources Loaded

940 ms

Page Rendered

310 ms

plutoniumscience.com screenshot

About Website

Welcome to plutoniumscience.com homepage info - get ready to check Plutonium Science best content right away, or after learning these important things about plutoniumscience.com

Who is Plutonium Science? I'm Paul, a Science Teacher in a UK Secondary School and I teach Biology, Chemistry, Physics and some Maths. I want to help as many people as possible gain some great GC...

Visit plutoniumscience.com

Key Findings

We analyzed Plutoniumscience.com page load time and found that the first response time was 13 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

plutoniumscience.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value1,190 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value22.8 s

1/100

10%

Network Requests Diagram

plutoniumscience.com

13 ms

plutoniumscience.com

24 ms

webfont.js

108 ms

112 ms

113 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Plutoniumscience.com, 21% (13 requests) were made to Platform.twitter.com and 16% (10 requests) were made to S0.wp.com. The less responsive or slowest element that took the longest time to load (378 ms) relates to the external source Secure.polldaddy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 107.3 kB (28%)

Content Size

390.0 kB

After Optimization

282.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Plutoniumscience.com main page is 390.0 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. 50% of websites need less resources to load. Javascripts take 138.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 104.4 kB

  • Original 137.6 kB
  • After minification 134.2 kB
  • After compression 33.1 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 104.4 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 1.3 kB

  • Original 70.9 kB
  • After minification 69.6 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. Plutonium Science images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.2 kB

  • Original 138.0 kB
  • After minification 138.0 kB
  • After compression 136.8 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 305 B

  • Original 43.5 kB
  • After minification 43.5 kB
  • After compression 43.2 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. Plutoniumscience.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 42 (74%)

Requests Now

57

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Plutonium 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 25 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

plutoniumscience.com

plutoniumscience.com

13 ms

plutoniumscience.com

plutoniumscience.com

24 ms

webfont.js

webfont.js

108 ms

112 ms

113 ms

122 ms

144 ms

156 ms

block-editor.css

block-editor.css

159 ms

116 ms

140 ms

148 ms

hovercards.min.js

hovercards.min.js

156 ms

wpgroho.js

wpgroho.js

153 ms

146 ms

smart.js

smart.js

297 ms

155 ms

10436017.js

10436017.js

378 ms

146 ms

w.js

w.js

169 ms

css

css

90 ms

global-print.css

global-print.css

15 ms

conf

conf

190 ms

cropped-myavatar-2-2.png

cropped-myavatar-2-2.png

376 ms

435edc99d1a492dc9d90845efb3bbc72e75fae8f2ef90545e79f5ed8801c19ae

435edc99d1a492dc9d90845efb3bbc72e75fae8f2ef90545e79f5ed8801c19ae

102 ms

5b09eb385d217e6e874bd06ddcc4a0106530b1f21144e9098a25cd8393ec1abe

5b09eb385d217e6e874bd06ddcc4a0106530b1f21144e9098a25cd8393ec1abe

107 ms

widgets.js

widgets.js

196 ms

paypal.jpg

paypal.jpg

187 ms

myavatar-2.png

myavatar-2.png

186 ms

past-paper-revision-1.jpg

past-paper-revision-1.jpg

86 ms

myavatar-2.png

myavatar-2.png

186 ms

7cH1v4okm5zmbvwkAx_sfcEuiD8jvvKsN9C6.ttf

7cH1v4okm5zmbvwkAx_sfcEuiD8jvvKsN9C6.ttf

57 ms

7cH1v4okm5zmbvwkAx_sfcEuiD8jWfWsN9C6.ttf

7cH1v4okm5zmbvwkAx_sfcEuiD8jWfWsN9C6.ttf

68 ms

7cH3v4okm5zmbtYtMeA0FKq0Jjg2drF0feCzhpo.ttf

7cH3v4okm5zmbtYtMeA0FKq0Jjg2drF0feCzhpo.ttf

74 ms

7cH3v4okm5zmbtYtMeA0FKq0Jjg2drGTeuCzhpo.ttf

7cH3v4okm5zmbtYtMeA0FKq0Jjg2drGTeuCzhpo.ttf

84 ms

alum-bg.png

alum-bg.png

311 ms

alum-question-bg.png

alum-question-bg.png

310 ms

alum-but-bg.png

alum-but-bg.png

309 ms

master.html

master.html

16 ms

g.gif

g.gif

96 ms

remote-login.php

remote-login.php

158 ms

ata.js

ata.js

98 ms

g.gif

g.gif

93 ms

g.gif

g.gif

92 ms

rlt-proxy.js

rlt-proxy.js

83 ms

82 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

99 ms

settings

settings

101 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

24 ms

button.856debeac157d9669cf51e73a08fbc93.js

button.856debeac157d9669cf51e73a08fbc93.js

48 ms

Pu94Science

Pu94Science

70 ms

actionbar.css

actionbar.css

6 ms

actionbar.js

actionbar.js

16 ms

embeds

embeds

90 ms

tweet_button.2f70fb173b9000da126c79afe2098f02.en.html

tweet_button.2f70fb173b9000da126c79afe2098f02.en.html

35 ms

polyfills-3b821eda8863adcc4a4b.js

polyfills-3b821eda8863adcc4a4b.js

49 ms

runtime-a697c5a1ae32bd7e4d42.js

runtime-a697c5a1ae32bd7e4d42.js

49 ms

modules.20f98d7498a59035a762.js

modules.20f98d7498a59035a762.js

75 ms

main-fd9ef5eb169057cda26d.js

main-fd9ef5eb169057cda26d.js

73 ms

_app-88bf420a57d49e33be53.js

_app-88bf420a57d49e33be53.js

95 ms

%5BscreenName%5D-c33f0b02841cffc3e9b4.js

%5BscreenName%5D-c33f0b02841cffc3e9b4.js

102 ms

_buildManifest.js

_buildManifest.js

114 ms

_ssgManifest.js

_ssgManifest.js

116 ms

Accessibility Review

plutoniumscience.com accessibility score

88

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

High

Links do not have a discernible name

Best Practices

plutoniumscience.com 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

SEO Factors

plutoniumscience.com SEO score

91

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

High

Tap targets are not sized appropriately

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 Plutoniumscience.com 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 Plutoniumscience.com 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

plutoniumscience.com

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