Tools & Wizards About Us
rosbs.ru screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

rosbs.ru

Ростовская областная специальная библиотека для слепых

Page Load Speed

10.3 sec in total

First Response

876 ms

Resources Loaded

8.4 sec

Page Rendered

998 ms

rosbs.ru screenshot

About Website

Welcome to rosbs.ru homepage info - get ready to check Rosbs best content for Russia right away, or after learning these important things about rosbs.ru

Онлайн библиотека для слепых в Ростове-на-Дону. Каталог книг для незрячих людей. Специальная электронная библиотека для слепых - РОСБС.

Visit rosbs.ru

Key Findings

We analyzed Rosbs.ru page load time and found that the first response time was 876 ms and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

rosbs.ru performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.088

92/100

15%

TTI (Time to Interactive)

Value19.8 s

2/100

10%

Network Requests Diagram

rosbs.ru

876 ms

rosbs.ru

1607 ms

fonts.css

304 ms

reset.css

608 ms

bootstrap.css

1520 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 81% of them (67 requests) were addressed to the original Rosbs.ru, 4% (3 requests) were made to Pos.gosuslugi.ru and 4% (3 requests) were made to Site.yandex.net. The less responsive or slowest element that took the longest time to load (4.3 sec) relates to the external source Culturaltracking.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.1 MB (29%)

Content Size

7.2 MB

After Optimization

5.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rosbs.ru main page is 7.2 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. 65% of websites need less resources to load. Images take 6.4 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 46.7 kB

  • Original 62.1 kB
  • After minification 58.8 kB
  • After compression 15.3 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 46.7 kB or 75% of the original size.

Image Optimization

-24%

Potential reduce by 1.5 MB

  • Original 6.4 MB
  • After minification 4.9 MB

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, Rosbs needs image optimization as it can save up to 1.5 MB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-54%

Potential reduce by 286.1 kB

  • Original 526.9 kB
  • After minification 457.0 kB
  • After compression 240.8 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 286.1 kB or 54% of the original size.

CSS Optimization

-85%

Potential reduce by 204.0 kB

  • Original 238.8 kB
  • After minification 194.7 kB
  • After compression 34.8 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. Rosbs.ru needs all CSS files to be minified and compressed as it can save up to 204.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (39%)

Requests Now

67

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rosbs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rosbs.ru

rosbs.ru

876 ms

rosbs.ru

rosbs.ru

1607 ms

fonts.css

fonts.css

304 ms

reset.css

reset.css

608 ms

bootstrap.css

bootstrap.css

1520 ms

style.css

style.css

1526 ms

user.css

user.css

914 ms

adaptive.css

adaptive.css

919 ms

css.css

css.css

926 ms

jquery.fancybox.css

jquery.fancybox.css

927 ms

font-awesome.min.css

font-awesome.min.css

43 ms

jquery-2.1.4.min.js

jquery-2.1.4.min.js

1825 ms

jquery-ui.js

jquery-ui.js

31 ms

jquery.mobile.custom.min.js

jquery.mobile.custom.min.js

1530 ms

jquery.mousewheel-3.0.6.pack.js

jquery.mousewheel-3.0.6.pack.js

1233 ms

jquery.fancybox.js

jquery.fancybox.js

1884 ms

jquery.cookie.js

jquery.cookie.js

1541 ms

jquery.maskedinput-1.3.min.js

jquery.maskedinput-1.3.min.js

1821 ms

jquery.nicescroll.js

jquery.nicescroll.js

2125 ms

jquery.timer.js

jquery.timer.js

1884 ms

script_default.js

script_default.js

2157 ms

bootstrap.min.js

bootstrap.min.js

2124 ms

script.js

script.js

2127 ms

spxl.js

spxl.js

4291 ms

script.min.js

script.min.js

676 ms

sp0SHdvmHr8.jpg

sp0SHdvmHr8.jpg

596 ms

gosuslugi-logo-blue.svg

gosuslugi-logo-blue.svg

118 ms

glass_light.png

glass_light.png

316 ms

enter_dark.png

enter_dark.png

317 ms

reg_dark.png

reg_dark.png

576 ms

logo_light.png

logo_light.png

576 ms

banner_1.jpg

banner_1.jpg

579 ms

logo_121.jpg

logo_121.jpg

924 ms

PBS.jpg

PBS.jpg

620 ms

banner_grn.jpg

banner_grn.jpg

621 ms

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%D0%A1%D0%B0%D0%BC%D0%B1%D0%B5%D0%BA_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82.png

1183 ms

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%D0%96%D0%9D%D0%94_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82.png

1184 ms

%D0%94%D0%9C_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82.png

%D0%94%D0%9C_%D0%BA%D0%B2%D0%B0%D0%B4%D1%80%D0%B0%D1%82.png

1207 ms

%D0%91%D0%90%D0%9D%D0%9D%D0%95%D0%A0%201%20%D0%B2%D0%B0%D1%80%D0%B8%D0%B0%D0%BD%D1%82.png

%D0%91%D0%90%D0%9D%D0%9D%D0%95%D0%A0%201%20%D0%B2%D0%B0%D1%80%D0%B8%D0%B0%D0%BD%D1%82.png

924 ms

xGKgPSTF4ziMq4FcTyLwSZqmp-ZwJW74Alf5RbLxY_AZi0CGb4dOd23y97NCoWFPH1lm5P0A1gF3VgCtJOLG2kNs.jpg

xGKgPSTF4ziMq4FcTyLwSZqmp-ZwJW74Alf5RbLxY_AZi0CGb4dOd23y97NCoWFPH1lm5P0A1gF3VgCtJOLG2kNs.jpg

1851 ms

AUDIO.png

AUDIO.png

315 ms

VK.png

VK.png

620 ms

1f0656c1424f38f96b2bf1dc38e93a47.png

1f0656c1424f38f96b2bf1dc38e93a47.png

619 ms

RUTUBE.png

RUTUBE.png

619 ms

%D0%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5.png

%D0%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5.png

619 ms

Frame%202.jpg

Frame%202.jpg

620 ms

Frame%201.jpg

Frame%201.jpg

920 ms

logo_developer_light.png

logo_developer_light.png

1231 ms

all.js

all.js

664 ms

menu_arrow_dark.png

menu_arrow_dark.png

1202 ms

login_dark.png

login_dark.png

1463 ms

password_dark.png

password_dark.png

1463 ms

vk_dark.png

vk_dark.png

1463 ms

ok_dark.png

ok_dark.png

1508 ms

youtube_dark.png

youtube_dark.png

1511 ms

rutube_dark.svg

rutube_dark.svg

1767 ms

telegram_dark.svg

telegram_dark.svg

1765 ms

rss_dark.png

rss_dark.png

1767 ms

WhitneyMedium.woff

WhitneyMedium.woff

2064 ms

WhitneySemibld.woff

WhitneySemibld.woff

1884 ms

WhitneyBold.woff

WhitneyBold.woff

1832 ms

WhitneyBook.woff

WhitneyBook.woff

1825 ms

WhitneyBlack.woff

WhitneyBlack.woff

1793 ms

AUDIO.png

AUDIO.png

2465 ms

watch.js

watch.js

39 ms

tag.js

tag.js

965 ms

ajax_carts.php

ajax_carts.php

2434 ms

ajax_carts.php

ajax_carts.php

2458 ms

Lato-Regular.woff

Lato-Regular.woff

579 ms

ajax_get_favorites.php

ajax_get_favorites.php

2227 ms

Frame%20467.png

Frame%20467.png

2146 ms

VK.png

VK.png

2775 ms

%D0%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5.png

%D0%B7%D0%B0%D0%B3%D1%80%D1%83%D0%B6%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5.png

2718 ms

RUTUBE.png

RUTUBE.png

2718 ms

1f0656c1424f38f96b2bf1dc38e93a47.png

1f0656c1424f38f96b2bf1dc38e93a47.png

3089 ms

Frame%202.jpg

Frame%202.jpg

3099 ms

jquery.min.js

jquery.min.js

497 ms

Frame%201.jpg

Frame%201.jpg

3119 ms

suggest.js

suggest.js

154 ms

opensearch.js

opensearch.js

285 ms

advert.gif

advert.gif

719 ms

sync_cookie_image_decide

sync_cookie_image_decide

175 ms

1

1

138 ms

Accessibility Review

rosbs.ru 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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

rosbs.ru best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

rosbs.ru SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

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

rosbs.ru

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