Tools & Wizards About Us
vfocus.net screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 48

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

vfocus.net

:::VITTERSAFE危特网安:::

Page Load Speed

5.8 sec in total

First Response

1.1 sec

Resources Loaded

4.6 sec

Page Rendered

143 ms

vfocus.net screenshot

About Website

Welcome to vfocus.net homepage info - get ready to check Vfocus best content for United States right away, or after learning these important things about vfocus.net

专业的安全网站，提供专业的安全新闻、安全工具、安全资料、安全服务等

Visit vfocus.net

Key Findings

We analyzed Vfocus.net page load time and found that the first response time was 1.1 sec 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

vfocus.net performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

98/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

94/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

vfocus.net

1053 ms

common.css

889 ms

mouse_on_title.js

889 ms

js.js

2678 ms

service.js

899 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that all of those requests were addressed to Vfocus.net and no external sources were called. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Vfocus.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.4 kB (86%)

Content Size

97.4 kB

After Optimization

14.0 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Vfocus.net main page is 97.4 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. Only 10% of websites need less resources to load. HTML takes 82.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 72.5 kB

  • Original 82.9 kB
  • After minification 61.9 kB
  • After compression 10.4 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. This page needs HTML code to be minified as it can gain 21.0 kB, which is 25% 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 72.5 kB or 87% of the original size.

JavaScript Optimization

-74%

Potential reduce by 9.4 kB

  • Original 12.6 kB
  • After minification 9.9 kB
  • After compression 3.2 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 9.4 kB or 74% of the original size.

CSS Optimization

-82%

Potential reduce by 1.6 kB

  • Original 1.9 kB
  • After minification 1.4 kB
  • After compression 350 B

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. Vfocus.net needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (56%)

Requests Now

16

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vfocus. 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

vfocus.net

vfocus.net

1053 ms

common.css

common.css

889 ms

mouse_on_title.js

mouse_on_title.js

889 ms

js.js

js.js

2678 ms

service.js

service.js

899 ms

10.gif

10.gif

453 ms

favorite.gif

favorite.gif

452 ms

fpage.gif

fpage.gif

453 ms

leavew.gif

leavew.gif

454 ms

emus.gif

emus.gif

455 ms

0.gif

0.gif

1341 ms

v31s.gif

v31s.gif

1339 ms

xml_t.gif

xml_t.gif

2671 ms

14.gif

14.gif

1346 ms

b.gif

b.gif

546 ms

index_menu_bg3.gif

index_menu_bg3.gif

452 ms

bg1.gif

bg1.gif

453 ms

Accessibility Review

vfocus.net accessibility score

48

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.

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

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

<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

vfocus.net best practices score

69

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

SEO Factors

vfocus.net SEO score

69

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

Document uses plugins

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vfocus.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Vfocus.net 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

vfocus.net

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