Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

Page Load Speed

21.4 sec in total

First Response

365 ms

Resources Loaded

20.9 sec

Page Rendered

179 ms

vztools.net screenshot

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Key Findings

We analyzed Vztools.net page load time and found that the first response time was 365 ms and then it took 21 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

vztools.net performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value3.7 s

86/100

10%

TBT (Total Blocking Time)

Value970 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

vztools.net

365 ms

domains.css

100 ms

domains3.css

106 ms

domains2.css

108 ms

vztools-net-256.gif

159 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 62% of them (16 requests) were addressed to the original Vztools.net, 4% (1 request) were made to Scripts.chitika.net and 4% (1 request) were made to Jdoqocy.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Sedotracker.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 67.5 kB (77%)

Content Size

88.0 kB

After Optimization

20.5 kB

In fact, the total size of Vztools.net main page is 88.0 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. Javascripts take 62.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 10.5 kB

  • Original 14.6 kB
  • After minification 13.6 kB
  • After compression 4.1 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 10.5 kB or 72% of the original size.

Image Optimization

-10%

Potential reduce by 672 B

  • Original 6.5 kB
  • After minification 5.8 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. Vztools images are well optimized though.

JavaScript Optimization

-85%

Potential reduce by 53.4 kB

  • Original 62.9 kB
  • After minification 35.3 kB
  • After compression 9.5 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 53.4 kB or 85% of the original size.

CSS Optimization

-73%

Potential reduce by 2.9 kB

  • Original 4.0 kB
  • After minification 3.1 kB
  • After compression 1.1 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. Vztools.net needs all CSS files to be minified and compressed as it can save up to 2.9 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (52%)

Requests Now

21

After Optimization

10

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vztools. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

vztools.net accessibility score

90

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.

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

vztools.net best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

vztools.net SEO score

85

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

    N/A

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vztools.net can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Vztools.net main page’s claimed encoding is windows-1252. 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 Vztools. 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: