Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

zetai.net

IC集成电路|二三极管|场效应管|单片机|继电器|开关器件|光电传感器件|连接器件|电阻电容电感被动器件--深圳泽泰科技_深圳市泽泰科技有限公司

Page Load Speed

33.6 sec in total

First Response

10.3 sec

Resources Loaded

23 sec

Page Rendered

286 ms

zetai.net screenshot

About Website

Welcome to zetai.net homepage info - get ready to check Zetai best content right away, or after learning these important things about zetai.net

深圳市泽泰科技有限公司,专业经营各类IC集成电路二三极管,场效应管以及电阻电容等主被动元器件,为厂家提供各类电子元件配套,提高工厂的采购效率。电话:0755-83897562。

Visit zetai.net

Key Findings

We analyzed Zetai.net page load time and found that the first response time was 10.3 sec and then it took 23.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

zetai.net performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value6.7 s

35/100

10%

TBT (Total Blocking Time)

Value3,410 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.708

7/100

15%

TTI (Time to Interactive)

Value6.7 s

57/100

10%

Network Requests Diagram

zetai.net

10318 ms

metinfo.css

1824 ms

metinfo-min.js

4047 ms

ch.js

2782 ms

public.js

2176 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 90% of them (35 requests) were addressed to the original Zetai.net, 5% (2 requests) were made to Hm.baidu.com and 5% (2 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (10.3 sec) belongs to the original domain Zetai.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 69.9 kB (68%)

Content Size

102.5 kB

After Optimization

32.7 kB

In fact, the total size of Zetai.net main page is 102.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. CSS take 45.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 17.5 kB

  • Original 22.8 kB
  • After minification 21.1 kB
  • After compression 5.2 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. 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 17.5 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 56 B

  • Original 3.2 kB
  • After minification 3.1 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. Zetai images are well optimized though.

JavaScript Optimization

-43%

Potential reduce by 13.3 kB

  • Original 30.9 kB
  • After minification 28.5 kB
  • After compression 17.7 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 13.3 kB or 43% of the original size.

CSS Optimization

-85%

Potential reduce by 39.0 kB

  • Original 45.6 kB
  • After minification 38.3 kB
  • After compression 6.6 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. Zetai.net needs all CSS files to be minified and compressed as it can save up to 39.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (55%)

Requests Now

38

After Optimization

17

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zetai. 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.

Accessibility Review

zetai.net accessibility score

58

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.

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

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zetai.net 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

zetai.net SEO score

75

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Zetai.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 Zetai.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 Zetai. 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: