Tools & Wizards About Us
dachuanpiston.cn screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 40

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

dachuanpiston.cn

龙口市大川活塞有限公司

Page Load Speed

14.6 sec in total

First Response

802 ms

Resources Loaded

13.3 sec

Page Rendered

534 ms

dachuanpiston.cn screenshot

About Website

Visit dachuanpiston.cn now to see the best up-to-date Dachuanpiston content and also check out these interesting facts you probably never knew about dachuanpiston.cn

龙口市大川活塞有限公司

Visit dachuanpiston.cn

Key Findings

We analyzed Dachuanpiston.cn page load time and found that the first response time was 802 ms and then it took 13.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

dachuanpiston.cn performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

dachuanpiston.cn

802 ms

www.dachuanpiston.cn

738 ms

bootstrap2.min.css

486 ms

reset.css

483 ms

jquery-1.8.3.min.js

740 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that all of those requests were addressed to Dachuanpiston.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (11 sec) belongs to the original domain Dachuanpiston.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 223.2 kB (8%)

Content Size

2.8 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dachuanpiston.cn main page is 2.8 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. 45% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 15.2 kB

  • Original 19.3 kB
  • After minification 14.5 kB
  • After compression 4.1 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. This page needs HTML code to be minified as it can gain 4.8 kB, which is 25% 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 15.2 kB or 79% of the original size.

Image Optimization

-7%

Potential reduce by 181.7 kB

  • Original 2.6 MB
  • After minification 2.4 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. Dachuanpiston images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 8.4 kB

  • Original 57.2 kB
  • After minification 57.2 kB
  • After compression 48.8 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 8.4 kB or 15% of the original size.

CSS Optimization

-37%

Potential reduce by 17.9 kB

  • Original 48.1 kB
  • After minification 46.0 kB
  • After compression 30.1 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. Dachuanpiston.cn needs all CSS files to be minified and compressed as it can save up to 17.9 kB or 37% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (20%)

Requests Now

40

After Optimization

32

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dachuanpiston. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dachuanpiston.cn

dachuanpiston.cn

802 ms

www.dachuanpiston.cn

www.dachuanpiston.cn

738 ms

bootstrap2.min.css

bootstrap2.min.css

486 ms

reset.css

reset.css

483 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

740 ms

js_z.js

js_z.js

493 ms

banner.js

banner.js

494 ms

index.js

index.js

496 ms

wow.js

wow.js

724 ms

thems.css

thems.css

727 ms

responsive.css

responsive.css

738 ms

animate.css

animate.css

754 ms

banner_a.jpg

banner_a.jpg

6520 ms

gg.jpg

gg.jpg

2765 ms

dc_01_11.jpg

dc_01_11.jpg

746 ms

dc_01_13.jpg

dc_01_13.jpg

995 ms

ttp.png

ttp.png

973 ms

dc_08.jpg

dc_08.jpg

750 ms

dc_01_29.png

dc_01_29.png

2897 ms

dc_01_16.jpg

dc_01_16.jpg

4772 ms

sss8.jpg

sss8.jpg

270 ms

lefttop.png

lefttop.png

10982 ms

dc_01_24.jpg

dc_01_24.jpg

1756 ms

dc_01_22.jpg

dc_01_22.jpg

3260 ms

dc_01_27.jpg

dc_01_27.jpg

1452 ms

prev.png

prev.png

1692 ms

20211122030729713.jpg

20211122030729713.jpg

1935 ms

20211122030710554.jpg

20211122030710554.jpg

3086 ms

20211122030649572.jpg

20211122030649572.jpg

2175 ms

20211122030629533.jpg

20211122030629533.jpg

2415 ms

20211122030605332.jpg

20211122030605332.jpg

2655 ms

20211122030542762.jpg

20211122030542762.jpg

2896 ms

next.png

next.png

3140 ms

news.jpg

news.jpg

4993 ms

dc_13.jpg

dc_13.jpg

3137 ms

dc_16.png

dc_16.png

4815 ms

beian.png

beian.png

991 ms

bg_a.png

bg_a.png

990 ms

logo.png

logo.png

5026 ms

icon10.png

icon10.png

1231 ms

icon1.png

icon1.png

1240 ms

banner_b.jpg

banner_b.jpg

3923 ms

Accessibility Review

dachuanpiston.cn accessibility score

40

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

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

dachuanpiston.cn best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dachuanpiston.cn SEO score

77

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

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

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

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 Dachuanpiston.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 Dachuanpiston.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

dachuanpiston.cn

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