Tools & Wizards About Us
scienceonlinelondon.wikidot.com screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

scienceonlinelondon.wikidot.com

2021年上半年，恒力石化的净利润达到85亿元 - Science Online London

Page Load Speed

1.3 sec in total

First Response

72 ms

Resources Loaded

1.1 sec

Page Rendered

105 ms

scienceonlinelondon.wikidot.com screenshot

About Website

Visit scienceonlinelondon.wikidot.com now to see the best up-to-date Science Online London Wikidot content for United States and also check out these interesting facts you probably never knew about scienceonlinelondon.wikidot.com

Visit scienceonlinelondon.wikidot.com

Key Findings

We analyzed Scienceonlinelondon.wikidot.com page load time and found that the first response time was 72 ms and then it took 1.2 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

scienceonlinelondon.wikidot.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

scienceonlinelondon.wikidot.com

72 ms

gpt.js

5 ms

init.combined.js

13 ms

WIKIDOT.combined.js

9 ms

pubads_impl_82.js

49 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 10% of them (4 requests) were addressed to the original Scienceonlinelondon.wikidot.com, 15% (6 requests) were made to Scienceonlinelondon.wdfiles.com and 10% (4 requests) were made to D3g0gp89917ko0.cloudfront.net. The less responsive or slowest element that took the longest time to load (598 ms) relates to the external source A.getgamers.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 419.5 kB (63%)

Content Size

663.1 kB

After Optimization

243.7 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Scienceonlinelondon.wikidot.com main page is 663.1 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. 40% of websites need less resources to load. Javascripts take 627.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 16.3 kB

  • Original 21.2 kB
  • After minification 18.8 kB
  • After compression 4.9 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 2.4 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 16.3 kB or 77% of the original size.

JavaScript Optimization

-64%

Potential reduce by 398.8 kB

  • Original 627.5 kB
  • After minification 624.6 kB
  • After compression 228.7 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 398.8 kB or 64% of the original size.

CSS Optimization

-31%

Potential reduce by 4.4 kB

  • Original 14.4 kB
  • After minification 14.3 kB
  • After compression 10.0 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. Scienceonlinelondon.wikidot.com needs all CSS files to be minified and compressed as it can save up to 4.4 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (70%)

Requests Now

37

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Online London Wikidot. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

scienceonlinelondon.wikidot.com

scienceonlinelondon.wikidot.com

72 ms

gpt.js

gpt.js

5 ms

init.combined.js

init.combined.js

13 ms

WIKIDOT.combined.js

WIKIDOT.combined.js

9 ms

pubads_impl_82.js

pubads_impl_82.js

49 ms

style.css

style.css

16 ms

style.css

style.css

14 ms

style.css

style.css

19 ms

container.html

container.html

46 ms

science-online2010_blog.png

science-online2010_blog.png

44 ms

ads

ads

85 ms

dc.js

dc.js

61 ms

quant.js

quant.js

48 ms

vglnk.js

vglnk.js

27 ms

a.getgamers.eu

a.getgamers.eu

598 ms

ajax-module-connector.php

ajax-module-connector.php

39 ms

34 ms

35 ms

31 ms

pixel.gif

pixel.gif

8 ms

pixel.gif

pixel.gif

8 ms

html-block.css

html-block.css

5 ms

html-block-iframe.js

html-block-iframe.js

5 ms

pixel;r=1187464118;a=p-edL3gsnUjJzw-;fpan=1;fpa=P0-1165906051-1458463573810;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1458463573810;tzo=-180;ref=;url=http%3A%2F%2Fscienceonlinelondon.wikidot.com%2F;ogl=

pixel;r=1187464118;a=p-edL3gsnUjJzw-;fpan=1;fpa=P0-1165906051-1458463573810;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1458463573810;tzo=-180;ref=;url=http%3A%2F%2Fscienceonlinelondon.wikidot.com%2F;ogl=

6 ms

resize-iframe.html

resize-iframe.html

3 ms

resize-iframe.html

resize-iframe.html

6 ms

__utm.gif

__utm.gif

13 ms

__utm.gif

__utm.gif

17 ms

ads

ads

36 ms

osd.js

osd.js

5 ms

ads

ads

465 ms

bounce

bounce

15 ms

bounce

bounce

450 ms

sync

sync

52 ms

ping

ping

33 ms

optimize

optimize

58 ms

cse

cse

292 ms

batch

batch

15 ms

pixel.gif

pixel.gif

6 ms

Accessibility Review

scienceonlinelondon.wikidot.com accessibility score

73

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.

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

scienceonlinelondon.wikidot.com best practices score

50

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

High

Page has valid source maps

SEO Factors

scienceonlinelondon.wikidot.com SEO score

69

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

scienceonlinelondon.wikidot.com

Open Graph description is not detected on the main page of Science Online London Wikidot. 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: