Tools & Wizards About Us

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

zxopen.com

FPGA培训|DSP培训|SOC培训|PCB培训|人工智能培训|集成电路培训-至芯科技FPGA创新中心

Page Load Speed

8.7 sec in total

First Response

890 ms

Resources Loaded

7.5 sec

Page Rendered

237 ms

About Website

Visit zxopen.com now to see the best up-to-date Zxopen content for China and also check out these interesting facts you probably never knew about zxopen.com

至芯科技-中国领先的高新技术服务机构，致力于FPGA/DSP/SOC/PCB/人工智能/集成电路/ARM培训和研发,目前各类服务已覆盖全国，拥有自主研发基于FPGA系统的教学平台以及内部核心资源，垂询电话：400-681-0708

Visit zxopen.com

Key Findings

We analyzed Zxopen.com page load time and found that the first response time was 890 ms and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

zxopen.com performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

91/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value550 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

zxopen.com

890 ms

zxopen.com

1150 ms

Master.css

454 ms

flash.js

688 ms

jquery.js

911 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 69% of them (49 requests) were addressed to the original Zxopen.com, 17% (12 requests) were made to Www5c1.53kf.com and 4% (3 requests) were made to Wpa.qq.com. The less responsive or slowest element that took the longest time to load (4.8 sec) belongs to the original domain Zxopen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.0 kB (4%)

Content Size

1.5 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zxopen.com main page is 1.5 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. 25% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 27.6 kB

  • Original 37.7 kB
  • After minification 34.0 kB
  • After compression 10.1 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 27.6 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 33.9 kB

  • Original 1.4 MB
  • After minification 1.4 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. Zxopen images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 275 B

  • Original 26.8 kB
  • After minification 26.8 kB
  • After compression 26.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-13%

Potential reduce by 248 B

  • Original 1.9 kB
  • After minification 1.9 kB
  • After compression 1.6 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. Zxopen.com needs all CSS files to be minified and compressed as it can save up to 248 B or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (34%)

Requests Now

62

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zxopen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

zxopen.com accessibility score

60

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

Form elements do not have associated labels

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

zxopen.com best practices score

42

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

zxopen.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zxopen.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 Zxopen.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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