Report Summary

  • 86

    Performance

    Renders faster than
    90% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

5haoxue.net

电子课本_人教版小学初中高中教材书_好学电子课本网

Page Load Speed

38.4 sec in total

First Response

2.4 sec

Resources Loaded

34.8 sec

Page Rendered

1.2 sec

5haoxue.net screenshot

About Website

Welcome to 5haoxue.net homepage info - get ready to check 5 Haoxue best content for China right away, or after learning these important things about 5haoxue.net

好学电子课本网提供小学初中高中各年级教材电子课本,每个年级包括高一教材及其他年级教材,语文电子课本,数学电子课本,英语电子课本全部学课在内,更有人教版电子课本,部编版电子课本,外研版英语等多种版别的电子课本在线阅读,是在家学习以及上网课的好帮手。

Visit 5haoxue.net

Key Findings

We analyzed 5haoxue.net page load time and found that the first response time was 2.4 sec and then it took 36 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 16 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

5haoxue.net performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

79/100

25%

SI (Speed Index)

Value5.3 s

57/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.7 s

91/100

10%

Network Requests Diagram

5haoxue.net

2430 ms

www.5haoxue.net

5923 ms

public.css

2604 ms

jquery-1.8.3.min.js

9365 ms

jquery-extend-TrunAd2.js

2233 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 16% of them (12 requests) were addressed to the original 5haoxue.net, 54% (41 requests) were made to Img1.5haoxue.net and 7% (5 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Img1.5haoxue.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 244.8 kB (9%)

Content Size

2.8 MB

After Optimization

2.6 MB

In fact, the total size of 5haoxue.net main page is 2.8 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. 25% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 74.7 kB

  • Original 87.3 kB
  • After minification 64.3 kB
  • After compression 12.6 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 23.0 kB, which is 26% 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 74.7 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 11.8 kB

  • Original 2.5 MB
  • After minification 2.5 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. 5 Haoxue images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 127.8 kB

  • Original 192.4 kB
  • After minification 184.4 kB
  • After compression 64.7 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 127.8 kB or 66% of the original size.

CSS Optimization

-81%

Potential reduce by 30.6 kB

  • Original 37.8 kB
  • After minification 33.7 kB
  • After compression 7.2 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. 5haoxue.net needs all CSS files to be minified and compressed as it can save up to 30.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (43%)

Requests Now

56

After Optimization

32

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 5 Haoxue. 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 as a result speed up the page load time.

Accessibility Review

5haoxue.net accessibility score

63

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

5haoxue.net best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

SEO Factors

5haoxue.net SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 5haoxue.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that 5haoxue.net 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 5 Haoxue. 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: