Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

vbol.cn

恭喜,站点创建成功!

Page Load Speed

57.5 sec in total

First Response

18 sec

Resources Loaded

39.2 sec

Page Rendered

301 ms

vbol.cn screenshot

About Website

Welcome to vbol.cn homepage info - get ready to check Vbol best content for Hong Kong right away, or after learning these important things about vbol.cn

门户

Visit vbol.cn

Key Findings

We analyzed Vbol.cn page load time and found that the first response time was 18 sec and then it took 39.5 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

vbol.cn performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

47/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

portal.php

17986 ms

style_1_common.css

16743 ms

common.js

10488 ms

portal.js

2987 ms

inf.js

290 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 38% of them (41 requests) were addressed to the original Vbol.cn, 25% (27 requests) were made to Asearch.alicdn.com and 4% (4 requests) were made to Img.alicdn.com. The less responsive or slowest element that took the longest time to load (19.8 sec) belongs to the original domain Vbol.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 146.0 kB (30%)

Content Size

484.2 kB

After Optimization

338.2 kB

In fact, the total size of Vbol.cn main page is 484.2 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. 40% of websites need less resources to load. Images take 271.0 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 43.5 kB

  • Original 57.9 kB
  • After minification 57.7 kB
  • After compression 14.4 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 43.5 kB or 75% of the original size.

Image Optimization

-6%

Potential reduce by 15.9 kB

  • Original 271.0 kB
  • After minification 255.1 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. Vbol images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 82.3 kB

  • Original 149.4 kB
  • After minification 125.4 kB
  • After compression 67.1 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 82.3 kB or 55% of the original size.

CSS Optimization

-74%

Potential reduce by 4.4 kB

  • Original 5.9 kB
  • After minification 5.9 kB
  • After compression 1.5 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. Vbol.cn needs all CSS files to be minified and compressed as it can save up to 4.4 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (32%)

Requests Now

105

After Optimization

71

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vbol. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

vbol.cn accessibility score

73

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

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

vbol.cn 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vbol.cn SEO score

89

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vbol.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 Vbol.cn main page’s claimed encoding is gbk. 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

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