Tools & Wizards About Us
sciencechallenge.org screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% 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

  • 92

    SEO

    Google-friendlier than
    74% of websites

sciencechallenge.org

The RCSU Science Challenge | Faculty of Natural Sciences | Imperial College London

Page Load Speed

6.8 sec in total

First Response

158 ms

Resources Loaded

6.2 sec

Page Rendered

496 ms

sciencechallenge.org screenshot

About Website

Welcome to sciencechallenge.org homepage info - get ready to check Science Challenge best content right away, or after learning these important things about sciencechallenge.org

The Royal College of Science Union's annual science communication competition, testing the ability of today's young and aspiring scientists.

Visit sciencechallenge.org

Key Findings

We analyzed Sciencechallenge.org page load time and found that the first response time was 158 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sciencechallenge.org performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value19.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.3 s

0/100

25%

SI (Speed Index)

Value36.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,280 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value28.7 s

0/100

10%

Network Requests Diagram

sciencechallenge.org

158 ms

sciencechallenge.org

256 ms

fermedeleveil.com

267 ms

lifechurchmidwest.org

287 ms

biovert-protein.com

318 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Sciencechallenge.org, 44% (39 requests) were made to Planethockeymag.com and 27% (24 requests) were made to Googleuserconten744564567657465sg75.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Planethockeymag.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 297.8 kB (12%)

Content Size

2.5 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sciencechallenge.org main page is 2.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-54%

Potential reduce by 62.1 kB

  • Original 115.2 kB
  • After minification 108.3 kB
  • After compression 53.1 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 62.1 kB or 54% of the original size.

Image Optimization

-4%

Potential reduce by 60.9 kB

  • Original 1.7 MB
  • After minification 1.7 MB

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. Science Challenge images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 168.3 kB

  • Original 663.1 kB
  • After minification 663.1 kB
  • After compression 494.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 168.3 kB or 25% of the original size.

CSS Optimization

-19%

Potential reduce by 6.4 kB

  • Original 33.8 kB
  • After minification 33.8 kB
  • After compression 27.4 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. Sciencechallenge.org needs all CSS files to be minified and compressed as it can save up to 6.4 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (23%)

Requests Now

80

After Optimization

62

  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Challenge. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sciencechallenge.org

sciencechallenge.org

158 ms

sciencechallenge.org

sciencechallenge.org

256 ms

fermedeleveil.com

fermedeleveil.com

267 ms

lifechurchmidwest.org

lifechurchmidwest.org

287 ms

biovert-protein.com

biovert-protein.com

318 ms

rapac.org

rapac.org

171 ms

rapac.org

rapac.org

266 ms

eaump.org

eaump.org

258 ms

planethockeymag.com

planethockeymag.com

1082 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

513 ms

popper.min.js

popper.min.js

507 ms

bootstrap.min.css

bootstrap.min.css

541 ms

bootstrap.min.js

bootstrap.min.js

507 ms

jquery.ticker.js

jquery.ticker.js

528 ms

jquery.easing.min.js

jquery.easing.min.js

985 ms

jquery.easy-ticker.js

jquery.easy-ticker.js

1013 ms

StyleSheet.css

StyleSheet.css

1023 ms

Responsive.css

Responsive.css

1039 ms

solid.css

solid.css

1028 ms

all.js

all.js

1065 ms

sweetalert.css

sweetalert.css

43 ms

sweetalert.min.js

sweetalert.min.js

53 ms

WebResource.axd

WebResource.axd

762 ms

WebResource.axd

WebResource.axd

1036 ms

style.css

style.css

1057 ms

wowslider.js

wowslider.js

1080 ms

script.js

script.js

1084 ms

logo-juli4d.png

logo-juli4d.png

75 ms

slider-vpn-allweb-02.jpg

slider-vpn-allweb-02.jpg

179 ms

slider-juli4d-03.jpg

slider-juli4d-03.jpg

104 ms

PP2.png

PP2.png

99 ms

flag-round-250.png

flag-round-250.png

63 ms

slider-juli4d-02.jpg

slider-juli4d-02.jpg

138 ms

slider-juli4d-01.jpg

slider-juli4d-01.jpg

160 ms

slider-cb-juli4d.jpg

slider-cb-juli4d.jpg

448 ms

telegram-1.gif

telegram-1.gif

356 ms

whatsapp-1.gif

whatsapp-1.gif

511 ms

PP1.png

PP1.png

109 ms

PP3.png

PP3.png

115 ms

PP4.png

PP4.png

122 ms

Joker1.jpg

Joker1.jpg

120 ms

Joker2.jpg

Joker2.jpg

125 ms

hk.png

hk.png

122 ms

LogoSydney.png

LogoSydney.png

121 ms

Untitled-1_1.png

Untitled-1_1.png

125 ms

Icon-Pasaran-new-zealand.png

Icon-Pasaran-new-zealand.png

129 ms

japan.png

japan.png

146 ms

logo_macau.png

logo_macau.png

134 ms

logo_seoul.png

logo_seoul.png

130 ms

icon_150x150.png

icon_150x150.png

136 ms

lotshanghai.png

lotshanghai.png

137 ms

PoolsRussian.png

PoolsRussian.png

146 ms

LasVegasNumber.png

LasVegasNumber.png

143 ms

lottery_round_uk.png

lottery_round_uk.png

144 ms

lottery_round_paris.png

lottery_round_paris.png

145 ms

Ottawa-pools.png

Ottawa-pools.png

146 ms

brazilia-pools.png

brazilia-pools.png

156 ms

TOTOMACAU.png

TOTOMACAU.png

160 ms

logo_singapore.png

logo_singapore.png

152 ms

speaker.png

speaker.png

550 ms

imgDepositeIcon.png

imgDepositeIcon.png

646 ms

imgBankBCA.png

imgBankBCA.png

920 ms

imgBankBni.png

imgBankBni.png

935 ms

imgBankBri.png

imgBankBri.png

964 ms

imgBankCIMB.png

imgBankCIMB.png

964 ms

imgBankDanamon.png

imgBankDanamon.png

1056 ms

imgBankOvo.png

imgBankOvo.png

1170 ms

imgBankGopay.png

imgBankGopay.png

1456 ms

imgBankPulsa.png

imgBankPulsa.png

1430 ms

imgBankDana.png

imgBankDana.png

1475 ms

imgBankQRIS2.png

imgBankQRIS2.png

1457 ms

imgWithdrawalIcon.png

imgWithdrawalIcon.png

1545 ms

Telegram.png

Telegram.png

1678 ms

Whatsapp.png

Whatsapp.png

1947 ms

ASF_withoutTitle.png

ASF_withoutTitle.png

1979 ms

home.png

home.png

1974 ms

daftar.png

daftar.png

1982 ms

whatsapp.png

whatsapp.png

2053 ms

apk.png

apk.png

2196 ms

livechat.png

livechat.png

2430 ms

css

css

33 ms

games-juli4d-togel.gif

games-juli4d-togel.gif

47 ms

games-juli4d-pkv.gif

games-juli4d-pkv.gif

513 ms

games-juli4d-sports.gif

games-juli4d-sports.gif

44 ms

games-juli4d-casino.gif

games-juli4d-casino.gif

111 ms

games-juli4d-slot.gif

games-juli4d-slot.gif

57 ms

games-juli4d-liveball.gif

games-juli4d-liveball.gif

189 ms

arrows.png

arrows.png

1978 ms

tracking.js

tracking.js

27 ms

Accessibility Review

sciencechallenge.org accessibility score

75

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

Best Practices

sciencechallenge.org best practices score

67

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

Missing source maps for large first-party JavaScript

SEO Factors

sciencechallenge.org SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    ID

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencechallenge.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed language. Our system also found out that Sciencechallenge.org 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

sciencechallenge.org

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