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name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value13.0 s

0/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value170 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

jazzsound.ru

1002 ms

index.php

996 ms

index.php

765 ms

webfont.js

24 ms

webfont.js

531 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 74% of them (58 requests) were addressed to the original Jazzsound.ru, 4% (3 requests) were made to Ulogin.ru and 4% (3 requests) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Jazzsound.ru.

Content Size

1.6 MB

After Optimization

848.9 kB

In fact, the total size of Jazzsound.ru main page is 1.6 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. 65% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 78.8 kB

Original 95.3 kB
After minification 85.6 kB
After compression 16.5 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 78.8 kB or 83% of the original size.

Image Optimization

-44%

Potential reduce by 573.3 kB

Original 1.3 MB
After minification 735.2 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. Obviously, Jazz Sound needs image optimization as it can save up to 573.3 kB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-53%

Potential reduce by 93.0 kB

Original 174.3 kB
After minification 174.3 kB
After compression 81.3 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 93.0 kB or 53% of the original size.

CSS Optimization

-33%

Potential reduce by 7.8 kB

Original 23.7 kB
After minification 23.7 kB
After compression 15.9 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. Jazzsound.ru needs all CSS files to be minified and compressed as it can save up to 7.8 kB or 33% of the original size.

Requests Now

After Optimization

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jazz Sound. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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 Jazzsound.ru 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 Jazzsound.ru 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

jazzsound.ru

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Джаз скачать бесплатно и без регистрации на JazzSound.ru

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

jazzsound.ru

index.php

index.php

webfont.js

webfont.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

jazzsound.ru

index.php

index.php

webfont.js

webfont.js

default.css

main.css

engine.css

ratemain.css

os.js

added.js

libs.js

default.js

ulogin.js

top100.jcn

share.js

style.css

top100.jcn

watch.js

banner-88x31-rambler-gray2.gif

m1.png

m4.png

m3.png

1716489936_fr-obi.jpg

1716543770_psf.jpg

1716539117_digipak-1.jpg

1717567112_hvikodden-1971.jpg

m8.png

noavatar.png

foto_9640.jpg

foto_12980.gif

foto_5257.jpg

m7.png

e.png

vulcan.png

m9.png

desc.gif

1575713918_300.png

1715001513_afr.jpg

1714989705_ylf.jpg

1714461518_cpf.jpg

1714460763_front.jpg

1714362670_jz.jpg