Tools & Wizards About Us
learnyouahaskell-zh-tw.csie.org screenshot

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

learnyouahaskell-zh-tw.csie.org

Paul Meng's Blog

Page Load Speed

2.4 sec in total

First Response

819 ms

Resources Loaded

1.4 sec

Page Rendered

109 ms

learnyouahaskell-zh-tw.csie.org screenshot

About Website

Welcome to learnyouahaskell-zh-tw.csie.org homepage info - get ready to check Learnyouahaskell Zh Tw Csie best content for Taiwan right away, or after learning these important things about learnyouahaskell-zh-tw.csie.org

Haskell 趣學指南

Visit learnyouahaskell-zh-tw.csie.org

Key Findings

We analyzed Learnyouahaskell-zh-tw.csie.org page load time and found that the first response time was 819 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

learnyouahaskell-zh-tw.csie.org performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

71/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

Network Requests Diagram

learnyouahaskell-zh-tw.csie.org

819 ms

learnyoua.haskell.sg

137 ms

details

146 ms

style.css

12 ms

socicon.css

36 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Learnyouahaskell-zh-tw.csie.org, 33% (6 requests) were made to Gitbook.com and 17% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (819 ms) belongs to the original domain Learnyouahaskell-zh-tw.csie.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 331.4 kB (73%)

Content Size

452.2 kB

After Optimization

120.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Learnyouahaskell-zh-tw.csie.org main page is 452.2 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

-78%

Potential reduce by 29.3 kB

  • Original 37.4 kB
  • After minification 28.3 kB
  • After compression 8.1 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. This page needs HTML code to be minified as it can gain 9.1 kB, which is 24% 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 29.3 kB or 78% of the original size.

Image Optimization

-25%

Potential reduce by 461 B

  • Original 1.9 kB
  • After minification 1.4 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, Learnyouahaskell Zh Tw Csie needs image optimization as it can save up to 461 B or 25% 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. Learnyouahaskell-zh-tw.csie.org 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 6 (40%)

Requests Now

15

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Learnyouahaskell Zh Tw Csie. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

learnyouahaskell-zh-tw.csie.org

learnyouahaskell-zh-tw.csie.org

819 ms

learnyoua.haskell.sg

learnyoua.haskell.sg

137 ms

details

details

146 ms

style.css

style.css

12 ms

socicon.css

socicon.css

36 ms

128.png

128.png

75 ms

ZeroClipboard.min.js

ZeroClipboard.min.js

38 ms

app.js

app.js

40 ms

133 ms

sdk.js

sdk.js

76 ms

widgets.js

widgets.js

61 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

8 ms

74 ms

channel.html

channel.html

15 ms

xd_arbiter.php

xd_arbiter.php

69 ms

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

47 ms

octicons.woff

octicons.woff

15 ms

nr-885.min.js

nr-885.min.js

95 ms

Accessibility Review

learnyouahaskell-zh-tw.csie.org accessibility score

90

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.

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

Best Practices

learnyouahaskell-zh-tw.csie.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

learnyouahaskell-zh-tw.csie.org SEO score

92

Search Engine Optimization Advices

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

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Learnyouahaskell-zh-tw.csie.org 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 Learnyouahaskell-zh-tw.csie.org 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

learnyouahaskell-zh-tw.csie.org

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