Tools & Wizards About Us
szdalos.en.alibaba.com screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

szdalos.en.alibaba.com

Shenzhen Dalos Electronics Co., Ltd. - GPS tracker, car alarm

Page Load Speed

4.9 sec in total

First Response

76 ms

Resources Loaded

4.5 sec

Page Rendered

361 ms

szdalos.en.alibaba.com screenshot

About Website

Click here to check amazing Sz Dalos En Alibaba content for China. Otherwise, check out these important facts you probably never knew about szdalos.en.alibaba.com

Shenzhen Dalos Electronics Co., Ltd., Experts in Manufacturing and Exporting GPS tracker, car alarm and 0 more Products.

Visit szdalos.en.alibaba.com

Key Findings

We analyzed Szdalos.en.alibaba.com page load time and found that the first response time was 76 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

szdalos.en.alibaba.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value8,710 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.273

45/100

15%

TTI (Time to Interactive)

Value28.9 s

0/100

10%

Network Requests Diagram

szdalos.en.alibaba.com

76 ms

szdalos.en.alibaba.com

564 ms

66 ms

66 ms

header.css

64 ms

Our browser made a total of 126 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Szdalos.en.alibaba.com, 43% (54 requests) were made to Sc04.alicdn.com and 27% (34 requests) were made to S.alicdn.com. The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source I.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.8 MB (62%)

Content Size

6.2 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Szdalos.en.alibaba.com main page is 6.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 5.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 717.7 kB

  • Original 848.1 kB
  • After minification 843.9 kB
  • After compression 130.4 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 717.7 kB or 85% of the original size.

Image Optimization

-16%

Potential reduce by 8.9 kB

  • Original 57.1 kB
  • After minification 48.2 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. Obviously, Sz Dalos En Alibaba needs image optimization as it can save up to 8.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 2.9 MB

  • Original 5.0 MB
  • After minification 5.0 MB
  • After compression 2.1 MB

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 2.9 MB or 58% of the original size.

CSS Optimization

-65%

Potential reduce by 211.2 kB

  • Original 322.8 kB
  • After minification 272.0 kB
  • After compression 111.6 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. Szdalos.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 211.2 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 72 (63%)

Requests Now

115

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sz Dalos En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

szdalos.en.alibaba.com

szdalos.en.alibaba.com

76 ms

szdalos.en.alibaba.com

szdalos.en.alibaba.com

564 ms

66 ms

66 ms

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64 ms

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119 ms

64 ms

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60 ms

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119 ms

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125 ms

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122 ms

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121 ms

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79 ms

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82 ms

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664 ms

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167 ms

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903 ms

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1039 ms

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987 ms

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1156 ms

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1089 ms

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1086 ms

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1253 ms

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1257 ms

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1317 ms

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1159 ms

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1454 ms

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1676 ms

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1445 ms

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1597 ms

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1380 ms

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1409 ms

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1701 ms

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1634 ms

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1697 ms

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1617 ms

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1671 ms

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1877 ms

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2115 ms

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1853 ms

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2273 ms

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1956 ms

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1779 ms

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685 ms

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76 ms

roboto-medium.woff

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105 ms

roboto-light.woff

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76 ms

roboto-thin.woff

roboto-thin.woff

169 ms

roboto-bold.woff

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169 ms

personTipsInfo.do

personTipsInfo.do

190 ms

eg.js

eg.js

141 ms

sc.globalxman.appscene

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28 ms

et_n.js

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44 ms

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44 ms

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20 ms

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245 ms

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6 ms

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144 ms

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119 ms

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133 ms

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167 ms

pages_version.html

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222 ms

defer-common.js

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3234 ms

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3357 ms

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146 ms

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48 ms

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48 ms

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482 ms

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60 ms

rp

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987 ms

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133 ms

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9 ms

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41 ms

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1337 ms

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36 ms

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8 ms

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5 ms

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1111 ms

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23 ms

queryIpAjax.do

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46 ms

store-proxy.html

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93 ms

countryCurrencyDataService

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110 ms

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76 ms

personRoleInfo.do

personRoleInfo.do

68 ms

notification.do

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128 ms

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16 ms

iconfont.woff

iconfont.woff

3 ms

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iconfont.woff

13 ms

Accessibility Review

szdalos.en.alibaba.com accessibility score

64

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

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

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

szdalos.en.alibaba.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

szdalos.en.alibaba.com SEO score

71

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

High

Document doesn't have a valid hreflang

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 doesn't use 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 Szdalos.en.alibaba.com 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 Szdalos.en.alibaba.com 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

szdalos.en.alibaba.com

Open Graph data is detected on the main page of Sz Dalos En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: