Tools & Wizards About Us
17zuoye.com screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

17zuoye.com

一起教育科技_让学习成为美好体验

Page Load Speed

10 sec in total

First Response

640 ms

Resources Loaded

8.7 sec

Page Rendered

613 ms

17zuoye.com screenshot

About Website

Welcome to 17zuoye.com homepage info - get ready to check 17 Zuoye best content for China right away, or after learning these important things about 17zuoye.com

一起作业是一款免费学习工具，是一个学生、老师和家长三方互动的作业平台，老师轻松布置作业，学生快乐做作业，家长可以定期查看孩子的学习进度及报告，情景交融的学习模式，让孩子轻松搞定各科学习！一起作业，让学习成为美好体验。

Visit 17zuoye.com

Key Findings

We analyzed 17zuoye.com page load time and found that the first response time was 640 ms and then it took 9.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

17zuoye.com performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

login.vpage

640 ms

jquery-3.6.1.min-V20231117233924.js

1550 ms

jqself-migrate.min-V20231117233924.js

1782 ms

jquery-migrate-3.4.0.min-V20231117233924.js

2015 ms

jquery-utils-V20160711111810.js

2241 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original 17zuoye.com, 4% (3 requests) were made to Ucenter.17zuoye.com. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Cdn-cnc.17zuoye.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 809.4 kB (27%)

Content Size

3.0 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • CSS

In fact, the total size of 17zuoye.com main page is 3.0 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 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 165.6 kB

  • Original 200.8 kB
  • After minification 190.8 kB
  • After compression 35.1 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 165.6 kB or 82% of the original size.

Image Optimization

-23%

Potential reduce by 643.6 kB

  • Original 2.8 MB
  • After minification 2.1 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, 17 Zuoye needs image optimization as it can save up to 643.6 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-1%

Potential reduce by 174 B

  • Original 26.7 kB
  • After minification 26.7 kB
  • After compression 26.5 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. 17zuoye.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (24%)

Requests Now

79

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 17 Zuoye. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

login.vpage

login.vpage

640 ms

jquery-3.6.1.min-V20231117233924.js

jquery-3.6.1.min-V20231117233924.js

1550 ms

jqself-migrate.min-V20231117233924.js

jqself-migrate.min-V20231117233924.js

1782 ms

jquery-migrate-3.4.0.min-V20231117233924.js

jquery-migrate-3.4.0.min-V20231117233924.js

2015 ms

jquery-utils-V20160711111810.js

jquery-utils-V20160711111810.js

2241 ms

$17.min.js

$17.min.js

2244 ms

saasconfig.min-V20230904164123.js

saasconfig.min-V20230904164123.js

2248 ms

jquery-impromptu-V20160711111810.css

jquery-impromptu-V20160711111810.css

2248 ms

pc-home.min-V20201023224542.css

pc-home.min-V20201023224542.css

2288 ms

indexv5.min.css

indexv5.min.css

2472 ms

newhome.min.css

newhome.min.css

2479 ms

template.min-V20190313231700.js

template.min-V20190313231700.js

2482 ms

jquery.flexslider-min-V20160711111809.js

jquery.flexslider-min-V20160711111809.js

2483 ms

jquery-impromptu.min-V20190313231700.js

jquery-impromptu.min-V20190313231700.js

2526 ms

voxLogs.js

voxLogs.js

2702 ms

loginv5_banner_bg_anim.min.js

loginv5_banner_bg_anim.min.js

2940 ms

loginv5.min-V20231117233924.js

loginv5.min-V20231117233924.js

2740 ms

logo_v2.png

logo_v2.png

231 ms

triangle.svg

triangle.svg

1068 ms

telLogin.png

telLogin.png

232 ms

shanghai.png

shanghai.png

507 ms

tianjin.png

tianjin.png

750 ms

beijing.png

beijing.png

745 ms

sh.png

sh.png

463 ms

nk.png

nk.png

467 ms

bh.png

bh.png

695 ms

bjsd.png

bjsd.png

704 ms

nkzx.png

nkzx.png

737 ms

xz.png

xz.png

926 ms

bottom-logo.png

bottom-logo.png

939 ms

7.png

7.png

972 ms

6.png

6.png

976 ms

3.png

3.png

1002 ms

4.png

4.png

1156 ms

10.png

10.png

1179 ms

new1.png

new1.png

1213 ms

weixin.png

weixin.png

1175 ms

new-weixin-code2.png

new-weixin-code2.png

1253 ms

token.api

token.api

442 ms

img_0.png

img_0.png

935 ms

img_1.png

img_1.png

1032 ms

img_2.png

img_2.png

1055 ms

img_3.png

img_3.png

1088 ms

img_4.png

img_4.png

1091 ms

img_5.png

img_5.png

1156 ms

img_6.png

img_6.png

1183 ms

img_7.png

img_7.png

1522 ms

img_8.png

img_8.png

1943 ms

img_9.png

img_9.png

1316 ms

img_10.png

img_10.png

1320 ms

img_11.png

img_11.png

1382 ms

img_12.png

img_12.png

1434 ms

img_13.png

img_13.png

1547 ms

img_14.png

img_14.png

1611 ms

img_15.png

img_15.png

1594 ms

img_16.png

img_16.png

1667 ms

img_17.png

img_17.png

1648 ms

img_18.png

img_18.png

1670 ms

img_19.png

img_19.png

1665 ms

img_20.png

img_20.png

1549 ms

code.vpage

code.vpage

384 ms

img_21.png

img_21.png

1579 ms

img_22.png

img_22.png

1610 ms

img_23.png

img_23.png

1622 ms

img_24.png

img_24.png

1659 ms

img_25.png

img_25.png

1554 ms

img_26.png

img_26.png

1607 ms

img_27.png

img_27.png

1560 ms

img_28.png

img_28.png

1602 ms

img_29.png

img_29.png

1619 ms

img_30.png

img_30.png

1559 ms

img_31.png

img_31.png

1555 ms

img_32.png

img_32.png

1623 ms

img_33.png

img_33.png

1582 ms

img_34.png

img_34.png

1605 ms

img_35.png

img_35.png

1570 ms

img_36.png

img_36.png

1823 ms

img_37.png

img_37.png

1649 ms

img_38.png

img_38.png

1674 ms

tags.png

tags.png

1649 ms

Accessibility Review

17zuoye.com accessibility score

49

Accessibility Issues

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

17zuoye.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

17zuoye.com SEO score

92

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 17zuoye.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 17zuoye.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

17zuoye.com

Open Graph description is not detected on the main page of 17 Zuoye. 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: