Tools & Wizards About Us
xueersi.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

xueersi.com

学而思官网

Page Load Speed

35 sec in total

First Response

6.7 sec

Resources Loaded

27.8 sec

Page Rendered

517 ms

xueersi.com screenshot

About Website

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

学而思品牌成立于2003年，隶属科技教育企业好未来（NYSE：TAL）。学而思凭借优秀的科技能力和内容能力，助力人的终身学习和成长。目前，学而思品牌旗下业务覆盖素质教育、成人教育、智能图书、智能硬件以及AI大模型等领域。

Visit xueersi.com

Key Findings

We analyzed Xueersi.com page load time and found that the first response time was 6.7 sec and then it took 28.3 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

xueersi.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

xueersi.com

6674 ms

bootstrap.min.css

3605 ms

font-awesome.css

1512 ms

default.css

1001 ms

xue.mall.css

6019 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 16% of them (16 requests) were addressed to the original Xueersi.com, 14% (14 requests) were made to Img04.xesimg.com and 13% (13 requests) were made to X01.xesimg.com. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain Xueersi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (42%)

Content Size

4.3 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Xueersi.com main page is 4.3 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. 40% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-97%

Potential reduce by 491.0 kB

  • Original 507.0 kB
  • After minification 176.2 kB
  • After compression 16.0 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 330.8 kB, which is 65% 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 491.0 kB or 97% of the original size.

Image Optimization

-24%

Potential reduce by 711.3 kB

  • Original 3.0 MB
  • After minification 2.3 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, Xueersi needs image optimization as it can save up to 711.3 kB 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

-67%

Potential reduce by 179.8 kB

  • Original 266.6 kB
  • After minification 266.1 kB
  • After compression 86.8 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 179.8 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 444.8 kB

  • Original 541.6 kB
  • After minification 495.5 kB
  • After compression 96.8 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. Xueersi.com needs all CSS files to be minified and compressed as it can save up to 444.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (6%)

Requests Now

97

After Optimization

91

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xueersi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

xueersi.com

xueersi.com

6674 ms

bootstrap.min.css

bootstrap.min.css

3605 ms

font-awesome.css

font-awesome.css

1512 ms

default.css

default.css

1001 ms

xue.mall.css

xue.mall.css

6019 ms

jquery.min.js

jquery.min.js

3098 ms

ma_min.js

ma_min.js

1289 ms

bootstrap.min.js

bootstrap.min.js

2937 ms

xue.mall.js

xue.mall.js

14680 ms

public.onload.js

public.onload.js

415 ms

middle.jpg

middle.jpg

3192 ms

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4111 ms

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6632 ms

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4640 ms

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4892 ms

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8632 ms

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7018 ms

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6418 ms

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20066 ms

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3172 ms

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6557 ms

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528 ms

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2020 ms

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514 ms

static.png

static.png

1018 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

13507 ms

ma.js

ma.js

469 ms

1.gif

1.gif

415 ms

ajaxGrade

ajaxGrade

595 ms

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2681 ms

Accessibility Review

xueersi.com accessibility score

45

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

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

xueersi.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

High

Page has valid source maps

SEO Factors

xueersi.com SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Xueersi.com 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 Xueersi.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

xueersi.com

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