Tools & Wizards About Us
dev.znds.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 48

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 87

    SEO

    Google-friendlier than
    65% of websites

dev.znds.com

当贝开发者平台_ZNDS智能电视开发者_智能电视软件开发_TV APP应用游戏开发_当贝市场电视应用开发平台

Page Load Speed

6.3 sec in total

First Response

312 ms

Resources Loaded

5.8 sec

Page Rendered

247 ms

dev.znds.com screenshot

About Website

Click here to check amazing Dev Znds content for China. Otherwise, check out these important facts you probably never knew about dev.znds.com

ZNDS开发者平台已面向大众，开放应用接口，开放应用提交，无需繁杂程序，即可将您的应用添加到当贝市场中！更多的展示，更多的渠道，尽在当贝市场！现在起，优秀开发者可加入ZNDS开发者扶持计划，申请ZNDS百兆独享服务器。。

Visit dev.znds.com

Key Findings

We analyzed Dev.znds.com page load time and found that the first response time was 312 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

dev.znds.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

Network Requests Diagram

dev.znds.com

312 ms

dev.znds.com

30 ms

dev.dangbei.com

1675 ms

bootstrap2.min.css

1128 ms

index.css

521 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Dev.znds.com, 80% (33 requests) were made to Dev.dangbei.com and 2% (1 request) were made to Img20.znds.net. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Dev.dangbei.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 240.1 kB (19%)

Content Size

1.3 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dev.znds.com main page is 1.3 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. 30% of websites need less resources to load. Images take 967.1 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 13.0 kB

  • Original 17.1 kB
  • After minification 12.6 kB
  • After compression 4.2 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 4.6 kB, which is 27% 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 13.0 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 14.2 kB

  • Original 967.1 kB
  • After minification 952.9 kB

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. Dev Znds images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 99.1 kB

  • Original 148.2 kB
  • After minification 147.7 kB
  • After compression 49.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 99.1 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 113.8 kB

  • Original 136.2 kB
  • After minification 133.7 kB
  • After compression 22.3 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. Dev.znds.com needs all CSS files to be minified and compressed as it can save up to 113.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (16%)

Requests Now

38

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dev Znds. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

dev.znds.com

dev.znds.com

312 ms

dev.znds.com

dev.znds.com

30 ms

dev.dangbei.com

dev.dangbei.com

1675 ms

bootstrap2.min.css

bootstrap2.min.css

1128 ms

index.css

index.css

521 ms

h31100_60.gif

h31100_60.gif

1452 ms

cnc_logo.png

cnc_logo.png

803 ms

LOGO.png

LOGO.png

585 ms

00001_03.jpg

00001_03.jpg

470 ms

00001_06.jpg

00001_06.jpg

1082 ms

00001_08.jpg

00001_08.jpg

500 ms

00001_10.jpg

00001_10.jpg

922 ms

chuangwei.jpg

chuangwei.jpg

1025 ms

haier.jpg

haier.jpg

1083 ms

00001_23.jpg

00001_23.jpg

991 ms

00001_21.jpg

00001_21.jpg

1404 ms

00001_19.jpg

00001_19.jpg

1324 ms

00001_20.jpg

00001_20.jpg

1315 ms

aiyiqi.png

aiyiqi.png

1522 ms

tengxun.png

tengxun.png

1730 ms

nangguo.png

nangguo.png

1572 ms

youku.png

youku.png

1598 ms

cibn.png

cibn.png

1579 ms

vst.png

vst.png

2102 ms

douyu.png

douyu.png

1804 ms

z_stat.php

z_stat.php

1841 ms

jquery.min.js

jquery.min.js

3181 ms

bootstrap.min.js

bootstrap.min.js

2128 ms

slide.js

slide.js

2044 ms

login.js

login.js

2416 ms

icon-arrows.png

icon-arrows.png

1095 ms

n1.jpg

n1.jpg

1725 ms

2.jpg

2.jpg

1578 ms

3.jpg

3.jpg

1556 ms

4.jpg

4.jpg

1525 ms

icon_terrace.png

icon_terrace.png

1561 ms

icon_support.png

icon_support.png

1794 ms

icon_partnership.png

icon_partnership.png

2032 ms

stat.htm

stat.htm

1493 ms

c.js

c.js

923 ms

hm.js

hm.js

980 ms

Accessibility Review

dev.znds.com accessibility score

48

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

High

Links do not have a discernible name

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

dev.znds.com best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

dev.znds.com SEO score

87

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

    ZH

  • Encoding

    UTF-8

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

dev.znds.com

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