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study4.gitbooks.io screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

study4.gitbooks.io

Study4.TW (@study4) on GitBook · GitBook (Legacy)

Page Load Speed

900 ms in total

First Response

112 ms

Resources Loaded

695 ms

Page Rendered

93 ms

study4.gitbooks.io screenshot

About Website

Welcome to study4.gitbooks.io homepage info - get ready to check Study4 Git Book S best content for China right away, or after learning these important things about study4.gitbooks.io

Books written by Study4.TW (@study4).

Visit study4.gitbooks.io

Key Findings

We analyzed Study4.gitbooks.io page load time and found that the first response time was 112 ms and then it took 788 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

study4.gitbooks.io performance score

0

Network Requests Diagram

study4.gitbooks.io

112 ms

@study4

167 ms

style.css

15 ms

socicon.css

36 ms

128.png

100 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Study4.gitbooks.io, 30% (6 requests) were made to Gitbook.com and 15% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (253 ms) relates to the external source Avatars0.githubusercontent.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 321.9 kB (73%)

Content Size

442.8 kB

After Optimization

120.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Study4.gitbooks.io main page is 442.8 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. 35% of websites need less resources to load. Javascripts take 231.5 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 19.5 kB

  • Original 26.5 kB
  • After minification 22.8 kB
  • After compression 7.0 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 3.7 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 19.5 kB or 74% of the original size.

Image Optimization

-24%

Potential reduce by 812 B

  • Original 3.4 kB
  • After minification 2.6 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. Obviously, Study4 Git Book S needs image optimization as it can save up to 812 B or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 148.3 kB

  • Original 231.5 kB
  • After minification 231.5 kB
  • After compression 83.2 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 148.3 kB or 64% of the original size.

CSS Optimization

-85%

Potential reduce by 153.3 kB

  • Original 181.4 kB
  • After minification 180.5 kB
  • After compression 28.1 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. Study4.gitbooks.io needs all CSS files to be minified and compressed as it can save up to 153.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (39%)

Requests Now

18

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Study4 Git Book S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

study4.gitbooks.io

study4.gitbooks.io

112 ms

@study4

@study4

167 ms

style.css

style.css

15 ms

socicon.css

socicon.css

36 ms

128.png

128.png

100 ms

Study4

Study4

253 ms

ZeroClipboard.min.js

ZeroClipboard.min.js

37 ms

app.js

app.js

39 ms

96 ms

sdk.js

sdk.js

45 ms

widgets.js

widgets.js

28 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

8 ms

142 ms

channel.html

channel.html

18 ms

xd_arbiter.php

xd_arbiter.php

85 ms

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

64 ms

octicons.woff

octicons.woff

17 ms

nr-885.min.js

nr-885.min.js

50 ms

jot

jot

89 ms

4da460625d

4da460625d

102 ms

SEO Factors

study4.gitbooks.io SEO score

0

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 Study4.gitbooks.io 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 Study4.gitbooks.io 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

study4.gitbooks.io

Open Graph data is detected on the main page of Study4 Git Book S. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: