Tools & Wizards About Us
zayl.com screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zayl.com

正安医疗

Page Load Speed

62.1 sec in total

First Response

16.1 sec

Resources Loaded

45.8 sec

Page Rendered

186 ms

zayl.com screenshot

About Website

Visit zayl.com now to see the best up-to-date Zayl content for China and also check out these interesting facts you probably never knew about zayl.com

正安（北京）医疗设备有限公司

Visit zayl.com

Key Findings

We analyzed Zayl.com page load time and found that the first response time was 16.1 sec and then it took 46 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 5 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zayl.com performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value1.578

0/100

15%

TTI (Time to Interactive)

Value3.0 s

95/100

10%

Network Requests Diagram

zayl.com

16070 ms

public.css

1076 ms

index.css

2265 ms

jquery.jcarousel.css

1161 ms

jquery-1.4.3.js

13004 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 98% of them (57 requests) were addressed to the original Zayl.com, 2% (1 request) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 61.9 kB (68%)

Content Size

91.4 kB

After Optimization

29.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zayl.com main page is 91.4 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. 15% of websites need less resources to load. Images take 43.4 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 16.4 kB

  • Original 21.9 kB
  • After minification 19.2 kB
  • After compression 5.5 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. This page needs HTML code to be minified as it can gain 2.7 kB, which is 12% 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 16.4 kB or 75% of the original size.

Image Optimization

-59%

Potential reduce by 25.4 kB

  • Original 43.4 kB
  • After minification 18.0 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, Zayl needs image optimization as it can save up to 25.4 kB or 59% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-78%

Potential reduce by 12.2 kB

  • Original 15.7 kB
  • After minification 9.7 kB
  • After compression 3.4 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 12.2 kB or 78% of the original size.

CSS Optimization

-75%

Potential reduce by 7.9 kB

  • Original 10.5 kB
  • After minification 8.4 kB
  • After compression 2.6 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. Zayl.com needs all CSS files to be minified and compressed as it can save up to 7.9 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (33%)

Requests Now

52

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zayl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zayl.com

zayl.com

16070 ms

public.css

public.css

1076 ms

index.css

index.css

2265 ms

jquery.jcarousel.css

jquery.jcarousel.css

1161 ms

jquery-1.4.3.js

jquery-1.4.3.js

13004 ms

jquery.soChange.js

jquery.soChange.js

1549 ms

jquery.marquee.js

jquery.marquee.js

3419 ms

jquery.jcarousel.js

jquery.jcarousel.js

4216 ms

jquery.imagePreview.1.0.js

jquery.imagePreview.1.0.js

2664 ms

swfobject_modified.js

swfobject_modified.js

7524 ms

piaofu.js

piaofu.js

4382 ms

jquery.floatDiv.js

jquery.floatDiv.js

10768 ms

bg.gif

bg.gif

9620 ms

banner_0.jpg

banner_0.jpg

19526 ms

zheng_05.png

zheng_05.png

975 ms

logo.png

logo.png

720 ms

zheng_10.png

zheng_10.png

383 ms

meun_1.png

meun_1.png

1103 ms

meun_2.png

meun_2.png

1882 ms

meun_3.png

meun_3.png

1438 ms

meun_4.png

meun_4.png

1945 ms

meun_5.png

meun_5.png

1470 ms

meun_6.png

meun_6.png

2512 ms

meun_7.png

meun_7.png

1838 ms

zheng_20.png

zheng_20.png

2221 ms

index_10.gif

index_10.gif

6911 ms

f4ee404878c48d3f65a49f26f5c54575.jpg

f4ee404878c48d3f65a49f26f5c54575.jpg

19523 ms

95c3c1bceb30de7c84f96d069f705134.jpg

95c3c1bceb30de7c84f96d069f705134.jpg

19524 ms

index_12.gif

index_12.gif

6399 ms

index_14.gif

index_14.gif

9900 ms

index_sgy_1.png

index_sgy_1.png

8481 ms

index_sgy_2.png

index_sgy_2.png

10077 ms

index_sgy_3.png

index_sgy_3.png

14516 ms

index_sgy_4.png

index_sgy_4.png

13790 ms

index_sgy_5.png

index_sgy_5.png

11242 ms

107dfdc45615024a8f552cd298c2784a.gif

107dfdc45615024a8f552cd298c2784a.gif

11626 ms

1dc9595511eba235e7bea4d79ad7ff5d.jpg

1dc9595511eba235e7bea4d79ad7ff5d.jpg

12983 ms

f8b2340e93f81c992db879e08b55dc27.jpg

f8b2340e93f81c992db879e08b55dc27.jpg

13364 ms

ebeedba2b775f76217ef0ddb65c0e515.gif

ebeedba2b775f76217ef0ddb65c0e515.gif

13755 ms

5352d5623ea1401712f21fa2d55fec74.jpg

5352d5623ea1401712f21fa2d55fec74.jpg

14138 ms

36996cd7a2c9e0b8ad4e47dd3bbf8577.jpg

36996cd7a2c9e0b8ad4e47dd3bbf8577.jpg

14147 ms

8ec664dd72775e426c2cff69f6c2ef8b.jpg

8ec664dd72775e426c2cff69f6c2ef8b.jpg

16739 ms

3433a135cf6ccbfa4283852c0f26032a.jpg

3433a135cf6ccbfa4283852c0f26032a.jpg

18897 ms

per.png

per.png

15694 ms

next.png

next.png

16177 ms

on1.png

on1.png

16661 ms

index2_02.gif

index2_02.gif

18371 ms

index_05.jpg

index_05.jpg

17104 ms

h.js

h.js

20474 ms

index_03.jpg

index_03.jpg

17123 ms

icon.gif

icon.gif

17168 ms

link.gif

link.gif

17293 ms

links.gif

links.gif

17545 ms

index2_08.gif

index2_08.gif

20087 ms

index_37.gif

index_37.gif

360 ms

index_40.gif

index_40.gif

382 ms

on2.png

on2.png

717 ms

index2_05.gif

index2_05.gif

760 ms

Accessibility Review

zayl.com accessibility score

58

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.

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

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

zayl.com best practices score

75

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

SEO Factors

zayl.com SEO score

83

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zayl.com 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 Zayl.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

zayl.com

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