Tools & Wizards About Us
lansidun.en.china.cn screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

lansidun.en.china.cn

Guangzhou Lansidun Electronic Co., Ltd. - Video door phone & Building intercom system from China Suppliers

Page Load Speed

12.5 sec in total

First Response

1.2 sec

Resources Loaded

11 sec

Page Rendered

281 ms

lansidun.en.china.cn screenshot

About Website

Visit lansidun.en.china.cn now to see the best up-to-date Lansidun En China content for China and also check out these interesting facts you probably never knew about lansidun.en.china.cn

Quality Video door phone for sale, Video door phone & Building intercom system provided by China Suppliers - Guangzhou Lansidun Electronic Co., Ltd..

Visit lansidun.en.china.cn

Key Findings

We analyzed Lansidun.en.china.cn page load time and found that the first response time was 1.2 sec and then it took 11.3 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

lansidun.en.china.cn performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

Network Requests Diagram

lansidun.en.china.cn

1173 ms

lansidun.goldsupplier.com

2485 ms

aliplayer-min.css

119 ms

common.min.css

40 ms

shop_v2.min.css

51 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Lansidun.en.china.cn, 61% (40 requests) were made to Res.goldsupplier.com and 17% (11 requests) were made to Img11.fr-trading.com. The less responsive or slowest element that took the longest time to load (7.2 sec) relates to the external source Img11.fr-trading.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 63.3 kB (9%)

Content Size

741.2 kB

After Optimization

677.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lansidun.en.china.cn main page is 741.2 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. 30% of websites need less resources to load. Javascripts take 485.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 58.9 kB

  • Original 73.4 kB
  • After minification 73.4 kB
  • After compression 14.5 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 58.9 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 70 B

  • Original 151.3 kB
  • After minification 151.2 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. Lansidun En China images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 4.1 kB

  • Original 485.3 kB
  • After minification 485.1 kB
  • After compression 481.2 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

-1%

Potential reduce by 268 B

  • Original 31.2 kB
  • After minification 31.2 kB
  • After compression 30.9 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. Lansidun.en.china.cn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 39 (61%)

Requests Now

64

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lansidun En China. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lansidun.en.china.cn

lansidun.en.china.cn

1173 ms

lansidun.goldsupplier.com

lansidun.goldsupplier.com

2485 ms

aliplayer-min.css

aliplayer-min.css

119 ms

common.min.css

common.min.css

40 ms

shop_v2.min.css

shop_v2.min.css

51 ms

jquery.mCustomScrollbar.min.css

jquery.mCustomScrollbar.min.css

55 ms

online-chat_v2.min.css

online-chat_v2.min.css

56 ms

inquiry-fast_v2.min.css

inquiry-fast_v2.min.css

61 ms

logo.png.webp

logo.png.webp

57 ms

shop-icon.png

shop-icon.png

13 ms

icon_earth.png

icon_earth.png

13 ms

icon_arrow_down.png

icon_arrow_down.png

14 ms

circle-loading.svg

circle-loading.svg

12 ms

1_170_15107_750_1000.jpg

1_170_15107_750_1000.jpg

7186 ms

product-icon.png

product-icon.png

11 ms

free_bg.jpg

free_bg.jpg

8 ms

default_corp.png

default_corp.png

8 ms

free.png

free.png

12 ms

1_170_15107_750_1000.jpg

1_170_15107_750_1000.jpg

686 ms

company_profile_bg.jpg.webp

company_profile_bg.jpg.webp

24 ms

chat-icon.png

chat-icon.png

9 ms

icon-chat-sm.png

icon-chat-sm.png

14 ms

aliplayer-min.js

aliplayer-min.js

89 ms

message.png

message.png

13 ms

carousel.js

carousel.js

23 ms

config.min.js

config.min.js

13 ms

es6-promise.auto.min.js

es6-promise.auto.min.js

13 ms

jquery.min.js

jquery.min.js

15 ms

jquery.cookie.min.js

jquery.cookie.min.js

13 ms

jquery.lazyload.min.js

jquery.lazyload.min.js

13 ms

en.min.js

en.min.js

35 ms

jquery.base64.min.js

jquery.base64.min.js

20 ms

common.min.js

common.min.js

20 ms

google_event.min.js

google_event.min.js

36 ms

search.min.js

search.min.js

35 ms

jquery.validation.min.js

jquery.validation.min.js

36 ms

floating_box.min.js

floating_box.min.js

37 ms

jquery.mCustomScrollbar.min.js

jquery.mCustomScrollbar.min.js

38 ms

product.min.js

product.min.js

39 ms

source-request.min.js

source-request.min.js

37 ms

share.min.js

share.min.js

37 ms

quick-inquiry_v2.min.js

quick-inquiry_v2.min.js

38 ms

js

js

59 ms

adsbygoogle.js

adsbygoogle.js

109 ms

count.min.js

count.min.js

39 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

65 ms

ajaxapi.php

ajaxapi.php

975 ms

show_ads_impl.js

show_ads_impl.js

255 ms

float-chat.png

float-chat.png

27 ms

floating_pic.png

floating_pic.png

12 ms

default_banner.jpg.webp

default_banner.jpg.webp

19 ms

1_361_15217_600_600.jpg

1_361_15217_600_600.jpg

113 ms

1_829_15263_600_600.jpg

1_829_15263_600_600.jpg

199 ms

1_808_15298_600_600.jpg

1_808_15298_600_600.jpg

218 ms

1_506_15228_600_600.jpg

1_506_15228_600_600.jpg

206 ms

1_560_15174_600_600.jpg

1_560_15174_600_600.jpg

213 ms

1_121_15342_600_600.jpg

1_121_15342_600_600.jpg

253 ms

1_323_15213_600_600.jpg

1_323_15213_600_600.jpg

309 ms

1_319_15155_600_600.jpg

1_319_15155_600_600.jpg

308 ms

1_269_15256_600_600.jpg

1_269_15256_600_600.jpg

327 ms

hm.js

hm.js

1310 ms

zrt_lookup.html

zrt_lookup.html

25 ms

ads

ads

180 ms

ads

ads

109 ms

ca-pub-5292127257608970

ca-pub-5292127257608970

68 ms

hm.gif

hm.gif

310 ms

Accessibility Review

lansidun.en.china.cn accessibility score

86

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

Image elements do not have [alt] attributes

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>).

Best Practices

lansidun.en.china.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

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

SEO Factors

lansidun.en.china.cn SEO score

93

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lansidun.en.china.cn can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Lansidun.en.china.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

lansidun.en.china.cn

Open Graph description is not detected on the main page of Lansidun En China. 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: