Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

dachou.github.io

David Chou | A software engineer’s personal blog

Page Load Speed

933 ms in total

First Response

17 ms

Resources Loaded

501 ms

Page Rendered

415 ms

dachou.github.io screenshot

About Website

Welcome to dachou.github.io homepage info - get ready to check Da Chou Github best content for China right away, or after learning these important things about dachou.github.io

A software engineer’s personal blog

Visit dachou.github.io

Key Findings

We analyzed Dachou.github.io page load time and found that the first response time was 17 ms and then it took 916 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

dachou.github.io performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value420 ms

66/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

dachou.github.io

17 ms

dachou.github.io

27 ms

main.css

23 ms

js

64 ms

2hPFZsUrbLgTVs

193 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 22% of them (8 requests) were addressed to the original Dachou.github.io, 56% (20 requests) were made to Public.slidesharecdn.com and 8% (3 requests) were made to Image.slidesharecdn.com. The less responsive or slowest element that took the longest time to load (193 ms) relates to the external source Slideshare.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 44.3 kB (13%)

Content Size

329.3 kB

After Optimization

285.0 kB

In fact, the total size of Dachou.github.io main page is 329.3 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. 55% of websites need less resources to load. Images take 293.3 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 10.8 kB

  • Original 15.0 kB
  • After minification 13.9 kB
  • After compression 4.2 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 10.8 kB or 72% of the original size.

Image Optimization

-11%

Potential reduce by 33.5 kB

  • Original 293.3 kB
  • After minification 259.8 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, Da Chou Github needs image optimization as it can save up to 33.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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.

Requests Breakdown

Number of requests can be reduced by 21 (64%)

Requests Now

33

After Optimization

12

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Da Chou Github. 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 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dachou.github.io accessibility score

92

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

<frame> or <iframe> elements do not have a title

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

dachou.github.io 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

General

Impact

Issue

High

Page has valid source maps

SEO Factors

dachou.github.io SEO score

86

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 Dachou.github.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 Dachou.github.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

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