Tools & Wizards About Us
douwinlock.com screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

douwinlock.com

DouWin Lock, IC card lock, magnetic card lock, mifare card lock, RFID card lock, email: sales@douwinlock.com,

Page Load Speed

5.3 sec in total

First Response

493 ms

Resources Loaded

4.5 sec

Page Rendered

312 ms

douwinlock.com screenshot

About Website

Welcome to douwinlock.com homepage info - get ready to check Dou Win Lock best content for Thailand right away, or after learning these important things about douwinlock.com

DouWin Lock, mifare card lock, RFID card lock, IC card lock, magnetic card lock, email: sales@douwinlock.com, www.douwinlock.com

Visit douwinlock.com

Key Findings

We analyzed Douwinlock.com page load time and found that the first response time was 493 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

douwinlock.com performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.087

93/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

douwinlock.com

493 ms

css.css

146 ms

yu.js

352 ms

tb.js

145 ms

ScrollPic.js

144 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 99% of them (66 requests) were addressed to the original Douwinlock.com, 1% (1 request) were made to Skype.tom.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Douwinlock.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 193.4 kB (11%)

Content Size

1.7 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Douwinlock.com main page is 1.7 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 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 26.0 kB

  • Original 32.4 kB
  • After minification 31.7 kB
  • After compression 6.4 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 26.0 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 80.8 kB

  • Original 1.6 MB
  • After minification 1.5 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. Dou Win Lock images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 77.3 kB

  • Original 104.3 kB
  • After minification 103.4 kB
  • After compression 27.0 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 77.3 kB or 74% of the original size.

CSS Optimization

-83%

Potential reduce by 9.3 kB

  • Original 11.2 kB
  • After minification 9.1 kB
  • After compression 2.0 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. Douwinlock.com needs all CSS files to be minified and compressed as it can save up to 9.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (40%)

Requests Now

65

After Optimization

39

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dou Win Lock. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

douwinlock.com

douwinlock.com

493 ms

css.css

css.css

146 ms

yu.js

yu.js

352 ms

tb.js

tb.js

145 ms

ScrollPic.js

ScrollPic.js

144 ms

20128138421728449.jpg

20128138421728449.jpg

218 ms

home_12.jpg

home_12.jpg

158 ms

home_14.jpg

home_14.jpg

214 ms

home_10.jpg

home_10.jpg

214 ms

home_05.jpg

home_05.jpg

216 ms

home_07.jpg

home_07.jpg

221 ms

home_21.jpg

home_21.jpg

285 ms

home_22.jpg

home_22.jpg

287 ms

skypeCheck40.js

skypeCheck40.js

244 ms

bj_01.jpg

bj_01.jpg

135 ms

sethome.jpg

sethome.jpg

136 ms

home_17.jpg

home_17.jpg

141 ms

nav_b.jpg

nav_b.jpg

208 ms

nav_l.jpg

nav_l.jpg

208 ms

home_36.jpg

home_36.jpg

209 ms

home_34.jpg

home_34.jpg

209 ms

nav_r.jpg

nav_r.jpg

244 ms

2021121311123227033.jpg

2021121311123227033.jpg

405 ms

202181311251564533.jpg

202181311251564533.jpg

2592 ms

202181311264648604.jpg

202181311264648604.jpg

3540 ms

20189110582267204.jpg

20189110582267204.jpg

3921 ms

201810101192585761.jpg

201810101192585761.jpg

2119 ms

index_67.jpg

index_67.jpg

287 ms

home_69.jpg

home_69.jpg

361 ms

contact.jpg

contact.jpg

959 ms

20243232044954481.jpg

20243232044954481.jpg

477 ms

20205162381120256.jpg

20205162381120256.jpg

1336 ms

20243232073585705.jpg

20243232073585705.jpg

2026 ms

2019121212333178422.jpg

2019121212333178422.jpg

1407 ms

201941721321575581.jpg

201941721321575581.jpg

1478 ms

20194128172327735.jpg

20194128172327735.jpg

1549 ms

202233121161448248.jpg

202233121161448248.jpg

1621 ms

202211821343094778.jpg

202211821343094778.jpg

1762 ms

20151217221144225.jpg

20151217221144225.jpg

1837 ms

201831341654563.jpg

201831341654563.jpg

1909 ms

2017827211541364.jpg

2017827211541364.jpg

1979 ms

2017827211612994.jpg

2017827211612994.jpg

2799 ms

home_100.jpg

home_100.jpg

2044 ms

qqBE1.gif

qqBE1.gif

2706 ms

skype.gif

skype.gif

2133 ms

slide_trigger_c.gif

slide_trigger_c.gif

2060 ms

slide_trigger.gif

slide_trigger.gif

2132 ms

home_47.jpg

home_47.jpg

2168 ms

home_45.jpg

home_45.jpg

2241 ms

home_49.jpg

home_49.jpg

2313 ms

home_66.jpg

home_66.jpg

2385 ms

home_76.jpg

home_76.jpg

2421 ms

home_81.jpg

home_81.jpg

2758 ms

home_83.jpg

home_83.jpg

2492 ms

home_85.jpg

home_85.jpg

2565 ms

home_53.jpg

home_53.jpg

2597 ms

home_51.jpg

home_51.jpg

2629 ms

home_55.jpg

home_55.jpg

2634 ms

home_62.jpg

home_62.jpg

2626 ms

home_73.jpg

home_73.jpg

2581 ms

home_78.jpg

home_78.jpg

2545 ms

home_92.jpg

home_92.jpg

2930 ms

home_89.jpg

home_89.jpg

2053 ms

home_97.jpg

home_97.jpg

1686 ms

home_93.jpg

home_93.jpg

1664 ms

home_95.jpg

home_95.jpg

1603 ms

home_98.jpg

home_98.jpg

1544 ms

Accessibility Review

douwinlock.com accessibility score

44

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

douwinlock.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

douwinlock.com SEO score

58

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Douwinlock.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Douwinlock.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

douwinlock.com

Open Graph description is not detected on the main page of Dou Win Lock. 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: