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xueersi.com screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

xueersi.com

学而思官网

Page Load Speed

3.1 sec in total

First Response

526 ms

Resources Loaded

2.5 sec

Page Rendered

52 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 526 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

xueersi.com performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value1.138

1/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

xueersi.com

526 ms

www.xueersi.com

1028 ms

chunk-vendors.js

930 ms

app.js

327 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that 50% of them (2 requests) were addressed to the original Xueersi.com, 50% (2 requests) were made to Static0.xesimg.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Xueersi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.2 kB (0%)

Content Size

1.1 MB

After Optimization

1.1 MB

  • HTML
  • JavaScript

In fact, the total size of Xueersi.com main page is 1.1 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. Only 5% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-48%

Potential reduce by 773 B

  • Original 1.6 kB
  • After minification 1.5 kB
  • After compression 824 B

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 773 B or 48% of the original size.

JavaScript Optimization

-0%

Potential reduce by 2.4 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 1.1 MB

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

We found no issues to fix!

Requests Now

2

After Optimization

2

  • JavaScript

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xueersi. According to our analytics all requests are already optimized.

Network Requests Diagram

xueersi.com

xueersi.com

526 ms

www.xueersi.com

www.xueersi.com

1028 ms

chunk-vendors.js

chunk-vendors.js

930 ms

app.js

app.js

327 ms

Accessibility Review

xueersi.com accessibility score

73

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.

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

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

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

robots.txt is not valid

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 doesn't use 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: