Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 50

    SEO

    Google-friendlier than
    19% of websites

zansas.cn

季铵盐系列_季鏻盐系列_冠醚系列_季铵碱系-长沙鑫星化工有限公司

Page Load Speed

24.3 sec in total

First Response

6.6 sec

Resources Loaded

17.3 sec

Page Rendered

321 ms

zansas.cn screenshot

About Website

Welcome to zansas.cn homepage info - get ready to check Zansas best content for China right away, or after learning these important things about zansas.cn

长沙鑫星化工有限公司,主营季铵盐系列 季鏻盐系列 冠醚系列 季铵碱系列,公司地址位于浙江杭州临安区,致力于为广大客户提供优质的产品/服务,如果您对我公司的产品服务感兴趣,请联系[长沙鑫星化工有限公司],期待您的来电。

Visit zansas.cn

Key Findings

We analyzed Zansas.cn page load time and found that the first response time was 6.6 sec and then it took 17.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

zansas.cn performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.6 s

100/100

25%

SI (Speed Index)

Value0.9 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.6 s

100/100

10%

Network Requests Diagram

zansas.cn

6609 ms

common.css

326 ms

base.js

1326 ms

common.js

996 ms

form.js

1229 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that all of those requests were addressed to Zansas.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (8.4 sec) belongs to the original domain Zansas.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.0 kB (47%)

Content Size

398.3 kB

After Optimization

211.3 kB

In fact, the total size of Zansas.cn main page is 398.3 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. Javascripts take 170.7 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 50.5 kB

  • Original 56.7 kB
  • After minification 54.1 kB
  • After compression 6.2 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 50.5 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 3.5 kB

  • Original 155.2 kB
  • After minification 151.7 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. Zansas images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 121.8 kB

  • Original 170.7 kB
  • After minification 152.9 kB
  • After compression 48.9 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 121.8 kB or 71% of the original size.

CSS Optimization

-71%

Potential reduce by 11.2 kB

  • Original 15.7 kB
  • After minification 12.7 kB
  • After compression 4.5 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. Zansas.cn needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (47%)

Requests Now

64

After Optimization

34

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zansas. 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 from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zansas.cn accessibility score

68

Accessibility Issues

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

Document doesn't have a <title> element

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

Best Practices

zansas.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

zansas.cn SEO score

50

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

Document doesn't have a <title> element

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Zansas.cn 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 Zansas.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 Zansas. 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: