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name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

99/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

nbstock.ru

815 ms

main.css

470 ms

rater.css

239 ms

inputplaceholder.js

238 ms

jquery-1.3.2.min.js

474 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 94% of them (74 requests) were addressed to the original Nbstock.ru, 4% (3 requests) were made to Counter.yadro.ru and 3% (2 requests) were made to Counter.rambler.ru. The less responsive or slowest element that took the longest time to load (823 ms) belongs to the original domain Nbstock.ru.

Content Size

230.8 kB

After Optimization

181.0 kB

In fact, the total size of Nbstock.ru main page is 230.8 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. 25% of websites need less resources to load. Images take 140.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 42.6 kB

Original 52.6 kB
After minification 50.8 kB
After compression 10.0 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 42.6 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 3.1 kB

Original 140.4 kB
After minification 137.3 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. Nbstock images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 2.9 kB

Original 27.3 kB
After minification 27.3 kB
After compression 24.4 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 2.9 kB or 11% of the original size.

CSS Optimization

-12%

Potential reduce by 1.2 kB

Original 10.6 kB
After minification 10.6 kB
After compression 9.4 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. Nbstock.ru needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 12% of the original size.

Requests Now

After Optimization

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nbstock. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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 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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Image elements do not have [alt] attributes

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

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

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

RU
Language Claimed

N/A
Encoding

WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nbstock.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 Nbstock.ru main page’s claimed encoding is windows-1251. 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

nbstock.ru

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

Ноутбуки - подбор, обзоры и продажа ноутбуков. Выбрать и купить ноутбуки в интернет - магазине nbstock.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

nbstock.ru

main.css

rater.css

inputplaceholder.js

jquery-1.3.2.min.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

nbstock.ru

main.css

rater.css

inputplaceholder.js

jquery-1.3.2.min.js

number_format.js

jquery.rater.js

jqd.js

jquery.dnr.js

nbstock.js

top100.cnt

bg_body.gif

bg_error.png

er_corner.gif

ico_close.gif

submit_error.gif

sign_blue.gif

sign_red.gif

sign_yellow.gif

bg_field_01.gif

hint-t.png

hint-l.png

line_blue.gif

logo.gif

phone.gif

cart.gif

home_disable.gif

enter.gif

dot_red.gif

bg_authorization.gif

icq_offline.gif

bg_group_01.gif

bg_group_02.gif

bg_group_03.gif

bg_menu_01.gif

bg_menu_02.gif

bg_menu_03.gif

vol_01.gif

vol_02.gif

ico_vskl.gif

bg_search_01.gif

bg_search_02.gif

bg_search_03.gif