book.ru Website Information

Daily Unique Visits: 5,472

Daily Page Views: 21,888

Income Per Day: $61

Estimated Value: $32,940

This website is located in Russian Federation and is using following IP address 77.223.109.115. See the complete list of popular websites hosted in Russian Federation.

book.ru is registered under .RU top-level domain. Please check other sites in .RU zone.

Website book.ru is using the following name servers:

ns4.selectel.org
ns3.selectel.org
ns1.selectel.org
ns2.selectel.org

and is probably hosted by OOO "Network of data-centers "Selectel". See the full list of other websites hosted by OOO "Network of data-centers "Selectel".

The highest website book.ru position in Alexa rank database was 209362 and the lowest rank position was 267441. Current position of book.ru in Alexa rank database is 229341.

Desktop speed score of book.ru (61/100) is better than the results of 37.05% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of book.ru (69/100) is better than the results of 20.4% of other sites and means that the page is not mobile-friendly.

Mobile speed score of book.ru (52/100) is better than the results of 37.6% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

book.ru Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

book.ru whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

% TCI Whois Service. Terms of use:
% https://tcinet.ru/documents/whois_ru_rf.pdf (in Russian)
% https://tcinet.ru/documents/whois_su.pdf (in Russian)

domain: BOOK.RU
nserver: ns1.selectel.org.
nserver: ns2.selectel.org.
nserver: ns3.selectel.org.
nserver: ns4.selectel.org.
state: REGISTERED, DELEGATED, VERIFIED
org: OOO "KnoRus media"
taxpayer-id: 7718883436
registrar: RU-CENTER-RU
admin-contact: https://www.nic.ru/whois
created: 1997-02-22T08:31:12Z
paid-till: 2025-02-28T21:00:00Z
free-date: 2025-04-01
source: TCI

Last updated on 2024-11-26T17:43:01Z

book.ru server information

Servers Location

book.ru desktop page speed rank

Last tested: 2019-08-16

Desktop Speed Bad

61/100

book.ru Desktop Speed Test Quick Summary

priority - 39Optimize images

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priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

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https://www.book.ru/bootstrap2/js/bootstrap.min.js
https://www.book.ru/jstree/3.3.7/dist/jstree.min.js
https://www.book.ru/js/main_gi.js
https://www.book.ru/js/default3.js
https://www.book.ru/js/index2.js

Optimize CSS Delivery of the following:

https://www.book.ru/bootstrap2/css/bootstrap.min.css
https://www.book.ru/bootstrap2/css/bootstrap-theme.min.css
https://www.book.ru/jstree/3.3.7/dist/themes/default/style.min.css

priority - 11Enable compression

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Enable compression for the following resources to reduce their transfer size by 105.4KiB (76% reduction).

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priority - 3Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.book.ru/bootstrap2/css/bootstrap-theme.min.css (3 days)
https://www.book.ru/bootstrap2/css/bootstrap.min.css (3 days)
https://www.book.ru/bootstrap2/fonts/glyphicons-halflings-regular.woff2 (3 days)
https://www.book.ru/bootstrap2/js/bootstrap.min.js (3 days)
https://www.book.ru/images/book.png (3 days)
https://www.book.ru/images/logo.gif (3 days)
https://www.book.ru/images/wait.gif (3 days)
https://www.book.ru/js/default3.js (3 days)
https://www.book.ru/js/index2.js (3 days)
https://www.book.ru/js/jquery-3.2.1.min.js (3 days)
https://www.book.ru/js/main_gi.js (3 days)

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 29% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

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priority - 0Minify HTML

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Minify HTML for the following resources to reduce their size by 563B (17% reduction).

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book.ru Desktop Resource Breakdown

Total Resources	56
Number of Hosts	2
Static Resources	11
JavaScript Resources	8
CSS Resources	3

book.ru mobile page speed rank

Last tested: 2019-07-01

Mobile Speed Bad

52/100

book.ru Mobile Speed Test Quick Summary

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

https://www.book.ru/bootstrap2/css/bootstrap.min.css
https://www.book.ru/bootstrap2/css/bootstrap-theme.min.css
https://www.book.ru/jstree/3.3.7/dist/themes/default/style.min.css

priority - 29Optimize images

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priority - 11Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 105.4KiB (76% reduction).

Compressing https://www.book.ru/jstree/3.3.7/dist/jstree.min.js could save 103.9KiB (76% reduction).
Compressing https://www.book.ru/js/index2.js could save 1.5KiB (62% reduction).

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 62% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 4Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://www.book.ru/bootstrap2/css/bootstrap-theme.min.css (3 days)
https://www.book.ru/bootstrap2/css/bootstrap.min.css (3 days)
https://www.book.ru/bootstrap2/fonts/glyphicons-halflings-regular.woff2 (3 days)
https://www.book.ru/bootstrap2/js/bootstrap.min.js (3 days)
https://www.book.ru/images/logo.gif (3 days)
https://www.book.ru/images/wait.gif (3 days)
https://www.book.ru/js/default3.js (3 days)
https://www.book.ru/js/index2.js (3 days)
https://www.book.ru/js/jquery-3.2.1.min.js (3 days)
https://www.book.ru/js/main_gi.js (3 days)

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.8KiB (22% reduction).

Minifying https://www.book.ru/js/index2.js could save 753B (31% reduction).
Minifying https://www.book.ru/js/main_gi.js could save 680B (18% reduction) after compression.
Minifying https://www.book.ru/js/default3.js could save 416B (19% reduction) after compression.

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 592B (13% reduction).

Minifying https://www.book.ru/ could save 592B (13% reduction) after compression.

book.ru Mobile Resource Breakdown

Total Resources	54
Number of Hosts	2
Static Resources	10
JavaScript Resources	8
CSS Resources	3

book.ru mobile page usability

Last tested: 2019-07-01

Mobile Usability Medium

69/100

book.ru Mobile Usability Test Quick Summary

priority - 34Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

Режим для слабовидящих and 7 others render only 5 pixels tall (14 CSS pixels).

v5.3.14 and 1 others render only 5 pixels tall (14 CSS pixels).

Поиск renders only 7 pixels tall (18 CSS pixels).

Расширенный поиск renders only 5 pixels tall (14 CSS pixels).

Проверка знаний (тесты) and 2 others render only 5 pixels tall (14 CSS pixels).

ТЕМАТИЧЕСКИЕ КОЛЛЕКЦИИ and 5 others render only 6 pixels tall (16 CSS pixels).

Забыли пароль? and 1 others render only 5 pixels tall (14 CSS pixels).

| renders only 5 pixels tall (14 CSS pixels).

— лицензионная…ФГОС ВО, СПО. and 2 others render only 5 pixels tall (14 CSS pixels).

Интеграция ЭБС…ние источники. and 13 others render only 5 pixels tall (14 CSS pixels).

Скачать заявку renders only 5 pixels tall (14 CSS pixels).

АКЦИИ BOOK.ru and 1 others render only 5 pixels tall (14 CSS pixels).

Присоединяйтес…С в 2019 году! renders only 5 pixels tall (14 CSS pixels).

Макаров А.П.,…итвиненко В.И. and 71 others render only 5 pixels tall (14 CSS pixels).

Анализ данных…(Бакалавриат) and 8 others render only 5 pixels tall (14 CSS pixels).

Тактика: батал…я подготовка") and 26 others render only 5 pixels tall (14 CSS pixels).

12+, ЭБС для С…ru © 2010–2019 renders only 5 pixels tall (14 CSS pixels).
Ваш IP: 167.99.102.248 renders only 5 pixels tall (14 CSS pixels).

The following text fragments have a small line height. Increase the line height to make them more legible.

Анализ данных…(Бакалавриат) and 8 others have a line height of only 107% of the font size.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 0Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <input id="query" type="text" name="query" class="form-control input-sm"> is close to 1 other tap targets.

The tap target <button type="submit" class="btn btn-default btn-sm"></button> is close to 2 other tap targets.

The tap target <a href="/search3/extsearch">Расширенный поиск</a> is close to 1 other tap targets.

The tap target <a href="#collapse_4" class="collapsed">БАЗОВАЯ КОЛЛЕКЦИЯ</a> and 6 others are close to other tap targets.

The tap target <label for="username" class="sr-only">Login</label> and 1 others are close to other tap targets.

The tap target <input id="username" type="text" name="username" class="form-control input-sm"> and 1 others are close to other tap targets.

The tap target <button type="submit" class="btn btn-default btn-sm"></button> is close to 2 other tap targets.

The tap target <a href="/resetpass">Забыли пароль?</a> and 1 others are close to other tap targets.

book.ru HTML validation

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Line: 2 Column: 1 - 109
"... <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html..."

Attribute “textparam” not allowed on element “a” at this point.

Line: 74 Column: 8 - 130
"...i> <li><a id="feedback" href="#" data-toggle="modal" data-target="#myModal" textparam="0466703de99e87f023c67983e123afa628a69efb">Обратн..." Line: 275 Column: 8 - 130
"...i> <li><a id="feedback" href="#" data-toggle="modal" data-target="#myModal" textparam="0466703de99e87f023c67983e123afa628a69efb">Обратн..."

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Line: 116 Column: 6 - 24
"...div> <div align="right"> ..." Line: 290 Column: 4 - 83
"..."row"> <div id="footer" class="col-lg-12 col-md-12 col-sm-12 col-xs-12" align="center"> <..." Line: 296 Column: 4 - 71
"..."row"> <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12" align="center"> В..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 126 Column: 3 - 9
"...xs-12"> <style> #s..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 227 Column: 3 - 72
"...15px;"> <img class="img-rounded" style="width: 100%;" src="/images/book.png"> </di..."

Duplicate ID “bs-example-navbar-collapse-1”.

Line: 256 Column: 2 - 73
"... </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul..."

Duplicate ID “feedback”.

Line: 275 Column: 8 - 130
"...i> <li><a id="feedback" href="#" data-toggle="modal" data-target="#myModal" textparam="0466703de99e87f023c67983e123afa628a69efb">Обратн..."

Duplicate ID “is_low_vision_mode”.

Line: 277 Column: 17 - 52
"... class=""><a id="is_low_vision_mode" href="#">Режим ..."

The “width” attribute on the “table” element is obsolete. Use CSS instead.

Line: 314 Column: 8 - 99
"..."> <table width=90% border=0 style='border-collapse:collapse;padding:5px' class='tablecollaps'> ..."

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Line: 314 Column: 8 - 99
"..."> <table width=90% border=0 style='border-collapse:collapse;padding:5px' class='tablecollaps'> ..."

Element “option” without attribute “label” must not be empty.

Line: 331 Column: 30 - 38
"...value='0'></option> ..."

Bad value “virtual” for attribute “wrap” on element “textarea”.

Line: 341 Column: 26 - 110
"...lspan='2'><textarea id='feedback-text' name='text' rows='7' wrap='virtual' style='width: 100%'></text..."

The “align” attribute on the “td” element is obsolete. Use CSS instead.

Line: 344 Column: 13 - 52
"... <tr> <td id='result' align='center' colspan='2'> ..."

Warnings

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Line: 19 Column: 2 - 61
"... /> <SCRIPT LANGUAGE="JavaScript" src="/js/jquery-3.2.1.min.js"></SCRI..." Line: 20 Column: 2 - 69
".../SCRIPT> <script LANGUAGE="JavaScript" src="/bootstrap2/js/bootstrap.min.js"></scri..." Line: 21 Column: 2 - 70
".../script> <script LANGUAGE="JavaScript" src="/jstree/3.3.7/dist/jstree.min.js"></scri..." Line: 22 Column: 2 - 52
".../script> <script LANGUAGE="JavaScript" src="/js/main_gi.js"></scri..." Line: 24 Column: 2 - 53
"...cript> <script LANGUAGE="JavaScript" src="/js/default4.js"></scri..." Line: 222 Column: 1 - 50
"...v> <script LANGUAGE="JavaScript" src="/js/index2.js"></scri..."

The first occurrence of ID “bs-example-navbar-collapse-1” was here.

Line: 55 Column: 2 - 73
"... </div> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul..."

The first occurrence of ID “feedback” was here.

Line: 74 Column: 8 - 130
"...i> <li><a id="feedback" href="#" data-toggle="modal" data-target="#myModal" textparam="0466703de99e87f023c67983e123afa628a69efb">Обратн..."

The first occurrence of ID “is_low_vision_mode” was here.

Line: 76 Column: 17 - 52
"... class=""><a id="is_low_vision_mode" href="#">Режим ..."

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book.ru Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

book.ru TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.

BOOK.RU Электронно-библиотечная система для учебных заведений - BOOK.ru

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book.ru desktop page speed rank

book.ru Desktop Speed Test Quick Summary

priority - 39Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 379.1KiB (42% reduction).

priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 11Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 105.4KiB (76% reduction).

priority - 3Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.8KiB (22% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 563B (17% reduction).

book.ru Desktop Resource Breakdown

book.ru mobile page speed rank

book.ru Mobile Speed Test Quick Summary

priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 29Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 281.2KiB (38% reduction).

priority - 11Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 105.4KiB (76% reduction).

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 4Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.8KiB (22% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 592B (13% reduction).

book.ru Mobile Resource Breakdown

book.ru mobile page usability

book.ru Mobile Usability Test Quick Summary

priority - 34Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

The following text fragments have a small line height. Increase the line height to make them more legible.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 0Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

book.ru HTML validation

Errors

Obsolete doctype. Expected “<!DOCTYPE html>”.

Attribute “textparam” not allowed on element “a” at this point.

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Duplicate ID “bs-example-navbar-collapse-1”.

Duplicate ID “feedback”.

Duplicate ID “is_low_vision_mode”.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Element “option” without attribute “label” must not be empty.

Bad value “virtual” for attribute “wrap” on element “textarea”.