Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

zscx.nvq.net.cn

无此域名

Page Load Speed

58.4 sec in total

First Response

14.9 sec

Resources Loaded

43.2 sec

Page Rendered

247 ms

zscx.nvq.net.cn screenshot

About Website

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Visit zscx.nvq.net.cn

Key Findings

We analyzed Zscx.nvq.net.cn page load time and found that the first response time was 14.9 sec and then it took 43.5 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. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zscx.nvq.net.cn performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value1.6 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

zscx.nvq.net.cn

14887 ms

zscx.osta.org.cn

13046 ms

site_ind.css

4822 ms

logo.gif

4951 ms

btn_search.jpg

3850 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Zscx.nvq.net.cn, 92% (34 requests) were made to Zscx.osta.org.cn and 3% (1 request) were made to Js.tongji.linezing.com. The less responsive or slowest element that took the longest time to load (19.5 sec) relates to the external source Zscx.osta.org.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 56.1 kB (79%)

Content Size

71.5 kB

After Optimization

15.4 kB

In fact, the total size of Zscx.nvq.net.cn main page is 71.5 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. Only 10% of websites need less resources to load. HTML takes 37.6 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 31.3 kB

  • Original 37.6 kB
  • After minification 24.3 kB
  • After compression 6.3 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 13.3 kB, which is 35% 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 31.3 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 22 B

  • Original 1.7 kB
  • After minification 1.6 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. Zscx Nvq images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 9.2 kB

  • Original 12.9 kB
  • After minification 10.6 kB
  • After compression 3.7 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 9.2 kB or 71% of the original size.

CSS Optimization

-81%

Potential reduce by 15.6 kB

  • Original 19.4 kB
  • After minification 16.6 kB
  • After compression 3.7 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. Zscx.nvq.net.cn needs all CSS files to be minified and compressed as it can save up to 15.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (35%)

Requests Now

34

After Optimization

22

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zscx Nvq. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

zscx.nvq.net.cn accessibility score

58

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

zscx.nvq.net.cn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

zscx.nvq.net.cn SEO score

62

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zscx.nvq.net.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Zscx.nvq.net.cn 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 Zscx Nvq. 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: