Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

haixue.com

嗨学网

Page Load Speed

17.4 sec in total

First Response

654 ms

Resources Loaded

16.4 sec

Page Rendered

325 ms

haixue.com screenshot

About Website

Welcome to haixue.com homepage info - get ready to check Haixue best content for China right away, or after learning these important things about haixue.com

专注职业人才培训,职业价值点亮者

Visit haixue.com

Key Findings

We analyzed Haixue.com page load time and found that the first response time was 654 ms and then it took 16.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

haixue.com performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value18.9 s

0/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value780 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.024

100/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

haixue.com

654 ms

v5

321 ms

antdesigns.150a530f.chunk.css

5014 ms

main.69df3702.chunk.css

1761 ms

font_1493879_ryifk91s1o.js

19 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 14% of them (11 requests) were addressed to the original Haixue.com, 38% (29 requests) were made to Assets.haixue.com and 33% (25 requests) were made to Yunpan-pub1.haixue.com. The less responsive or slowest element that took the longest time to load (5.7 sec) relates to the external source Yunpan-pub1.haixue.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 754.4 kB (12%)

Content Size

6.6 MB

After Optimization

5.8 MB

In fact, the total size of Haixue.com main page is 6.6 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. 50% of websites need less resources to load. Images take 5.4 MB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 99.2 kB

  • Original 174.7 kB
  • After minification 174.7 kB
  • After compression 75.5 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 99.2 kB or 57% of the original size.

Image Optimization

-12%

Potential reduce by 654.1 kB

  • Original 5.4 MB
  • After minification 4.8 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. Obviously, Haixue needs image optimization as it can save up to 654.1 kB or 12% 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 785 B

  • Original 857.9 kB
  • After minification 857.8 kB
  • After compression 857.1 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.

CSS Optimization

-0%

Potential reduce by 256 B

  • Original 79.6 kB
  • After minification 79.6 kB
  • After compression 79.3 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. Haixue.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (30%)

Requests Now

74

After Optimization

52

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Haixue. 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 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

haixue.com accessibility score

42

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

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

Image elements do not have [alt] attributes

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

haixue.com 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

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

haixue.com SEO score

85

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

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Haixue.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Haixue.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

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