Tools & Wizards About Us

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 34

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

yvisa.cn

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Page Load Speed

91.6 sec in total

First Response

2.8 sec

Resources Loaded

87.9 sec

Page Rendered

851 ms

About Website

Welcome to yvisa.cn homepage info - get ready to check Yvisa best content right away, or after learning these important things about yvisa.cn

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Visit yvisa.cn

Key Findings

We analyzed Yvisa.cn page load time and found that the first response time was 2.8 sec and then it took 88.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 68 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

yvisa.cn performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value17.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,060 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.382

27/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

www.yvisa.cn

2831 ms

style.css

9911 ms

jquery-1.4.4.min.js

7423 ms

tabauto.js

4533 ms

handtab.js

985 ms

Our browser made a total of 165 requests to load all elements on the main page. We found that 59% of them (97 requests) were addressed to the original Yvisa.cn, 11% (18 requests) were made to Qiao.baidu.com and 10% (17 requests) were made to Www7.53kf.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Yvisa.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 265.9 kB (63%)

Content Size

424.6 kB

After Optimization

158.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Yvisa.cn main page is 424.6 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. 20% of websites need less resources to load. HTML takes 190.5 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 171.6 kB

  • Original 190.5 kB
  • After minification 128.3 kB
  • After compression 18.9 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 62.2 kB, which is 33% 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 171.6 kB or 90% of the original size.

Image Optimization

-9%

Potential reduce by 10.9 kB

  • Original 117.9 kB
  • After minification 107.0 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. Yvisa images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 54.7 kB

  • Original 82.1 kB
  • After minification 80.5 kB
  • After compression 27.4 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 54.7 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 28.7 kB

  • Original 34.1 kB
  • After minification 24.9 kB
  • After compression 5.4 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. Yvisa.cn needs all CSS files to be minified and compressed as it can save up to 28.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 61 (64%)

Requests Now

96

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yvisa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

yvisa.cn accessibility score

34

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Definition list items are not wrapped in <dl> elements

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

yvisa.cn best practices score

50

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

yvisa.cn SEO score

54

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 uses plugins

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 Yvisa.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 Yvisa.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

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