Tools & Wizards About Us

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

vuzer.info

Библиотека Vuzer.info - бесплатные книги скачать без регистрации

Page Load Speed

7 sec in total

First Response

1.2 sec

Resources Loaded

5.4 sec

Page Rendered

492 ms

About Website

Visit vuzer.info now to see the best up-to-date Vuzer content for Ukraine and also check out these interesting facts you probably never knew about vuzer.info

Библиотека Vuzer.info - у нас вы можете скачать книги, аудиокниги, видекурсы , конспекты лекций, шпаргалки и многое другое

Visit vuzer.info

Key Findings

We analyzed Vuzer.info page load time and found that the first response time was 1.2 sec and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

vuzer.info performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

12/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.54

14/100

15%

TTI (Time to Interactive)

Value6.7 s

57/100

10%

Network Requests Diagram

vuzer.info

1166 ms

my.css

315 ms

base.css

467 ms

layer7.css

627 ms

jquery-1.7.2.js

945 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 44% of them (25 requests) were addressed to the original Vuzer.info, 21% (12 requests) were made to S33.ucoz.net and 11% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Vuzer.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 149.0 kB (12%)

Content Size

1.2 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vuzer.info main page is 1.2 MB. 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 971.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 61.1 kB

  • Original 76.1 kB
  • After minification 75.3 kB
  • After compression 15.1 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 61.1 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 44.3 kB

  • Original 971.1 kB
  • After minification 926.9 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. Vuzer images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 8.7 kB

  • Original 114.4 kB
  • After minification 114.3 kB
  • After compression 105.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-69%

Potential reduce by 35.0 kB

  • Original 50.6 kB
  • After minification 44.6 kB
  • After compression 15.6 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. Vuzer.info needs all CSS files to be minified and compressed as it can save up to 35.0 kB or 69% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (43%)

Requests Now

54

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vuzer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vuzer.info accessibility score

63

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

Form elements do not have associated labels

Best Practices

vuzer.info 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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

vuzer.info 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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vuzer.info can be misinterpreted by Google and other search engines. Our service has detected that Russian 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 Vuzer.info 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 Vuzer. 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: