Access zkxdt.cn. 隔墙板设备|匀质自保温砌块设备|FS免拆模板生产线|保温结构一体化免拆模板设备| 北京中科新大通建材科技有限公司

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value17.1 s

0/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.14

79/100

15%

TTI (Time to Interactive)

Value77.5 s

0/100

10%

zkxdt.cn

9605 ms

styles.css

1278 ms

jquery.min.js

1957 ms

jquery.nivo.slider.pack.js

1147 ms

common.js

3251 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that all of those requests were addressed to Zkxdt.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (11.8 sec) belongs to the original domain Zkxdt.cn.

Content Size

327.9 kB

After Optimization

154.0 kB

In fact, the total size of Zkxdt.cn main page is 327.9 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. 25% of websites need less resources to load. Images take 133.7 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 84.8 kB

Original 102.1 kB
After minification 71.1 kB
After compression 17.3 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 31.0 kB, which is 30% 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 84.8 kB or 83% of the original size.

Image Optimization

-19%

Potential reduce by 26.0 kB

Original 133.7 kB
After minification 107.7 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. Obviously, Zkxdt needs image optimization as it can save up to 26.0 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 63.0 kB

Original 92.1 kB
After minification 88.8 kB
After compression 29.0 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 63.0 kB or 68% of the original size.

Requests Now

After Optimization

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zkxdt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

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 Zkxdt.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 Zkxdt.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

zkxdt.cn

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

Report Summary

Performance

Accessibility

Best Practices

SEO

隔墙板设备|匀质自保温砌块设备|FS免拆模板生产线|保温结构一体化免拆模板设备| 北京中科新大通建材科技有限公司

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

zkxdt.cn

styles.css

jquery.min.js

jquery.nivo.slider.pack.js

common.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

zkxdt.cn

styles.css

jquery.min.js

jquery.nivo.slider.pack.js

common.js

AC_RunActiveContent.js

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