c-o-k.ru Website Information

Daily Unique Visits: 6,066

Daily Page Views: 24,264

Income Per Day: $68

Estimated Value: $36,720

This website is located in Russian Federation and is using following IP address 83.137.55.27. See the complete list of popular websites hosted in Russian Federation.

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

Website c-o-k.ru is using the following name servers:

dns2.yandex.net
dns1.yandex.net

and is probably hosted by Yandex.Cloud LLC. See the full list of other websites hosted by Yandex.Cloud LLC.

The highest website c-o-k.ru position in Alexa rank database was 117322 and the lowest rank position was 252677. Current position of c-o-k.ru in Alexa rank database is 206899.

Desktop speed score of c-o-k.ru (37/100) is better than the results of 12.68% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of c-o-k.ru (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of c-o-k.ru (34/100) is better than the results of 12.98% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

c-o-k.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.

c-o-k.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: C-O-K.RU
nserver: dns1.yandex.net.
nserver: dns2.yandex.net.
state: REGISTERED, DELEGATED, VERIFIED
org: Ltd. Publishing house "MEDIA TECHNOLOGY"
taxpayer-id: 7736213025
registrar: RU-CENTER-RU
admin-contact: https://www.nic.ru/whois
created: 2002-09-16T20:00:00Z
paid-till: 2025-09-17T21:00:00Z
free-date: 2025-10-19
source: TCI

Last updated on 2024-10-21T05:51:30Z

c-o-k.ru server information

Servers Location

c-o-k.ru desktop page speed rank

Last tested: 2017-05-25

Desktop Speed Bad

37/100

c-o-k.ru Desktop Speed Test Quick Summary

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

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priority - 2Reduce server response time

priority - 2Minify JavaScript

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priority - 1Leverage browser caching

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c-o-k.ru Desktop Resource Breakdown

Total Resources	125
Number of Hosts	13
Static Resources	106
JavaScript Resources	14
CSS Resources	3

c-o-k.ru mobile page speed rank

Last tested: 2017-05-25

Mobile Speed Bad

34/100

c-o-k.ru Mobile Speed Test Quick Summary

priority - 154Optimize images

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

Your page has 7 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

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Optimize CSS Delivery of the following:

https://www.c-o-k.ru/css.css?130216243
https://www.c-o-k.ru/css/mobile.css
https://fonts.googleapis.com/css?family=Noto+Sans:…00,400italic,700italic

priority - 4Reduce server response time

priority - 3Enable compression

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priority - 2Leverage 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.google.com/recaptcha/api.js?onload=ReC…aReady&render=explicit (5 minutes)
https://mc.yandex.ru/metrika/watch.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2Minify 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 16.1KiB (16% reduction).

c-o-k.ru Mobile Resource Breakdown

Total Resources	116
Number of Hosts	13
Static Resources	96
JavaScript Resources	14
CSS Resources	3

c-o-k.ru mobile page usability

Last tested: 2017-05-25

Mobile Usability Good

99/100

c-o-k.ru Mobile Usability Test Quick Summary

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 <div class="tabs-button ac…e cokTabulator">последние</div> is close to 1 other tap targets.
The tap target <div class="tabs-button cokTabulator">комментируемые</div> is close to 1 other tap targets.

c-o-k.ru HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."

Bad value “text/html, charset=utf-8” for attribute “content” on element “meta”: The legacy encoding declaration did not start with “text/html;”.

Line: 4 Column: 1 - 69
"...08/fbml"> <meta http-equiv="Content-Type" content="text/html, charset=utf-8" /> <meta..."

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Line: 5 Column: 1 - 51
"...utf-8" /> <meta http-equiv="Content-language" content="en" /> <meta..."

Duplicate attribute “data-id”.

Line: 69 Column: - 227
"...ation/" data-id="49" data-id="..." Line: 69 Column: - 240
"...id="49" data-id="49">Ваш беспл..." Line: 70 Column: - 196
"...scribe" data-id="50" data-id="..." Line: 70 Column: - 209
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Attribute “on” not allowed on element “input” at this point.

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Attribute “story→'” not allowed on element “input” at this point.

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Attribute “of” not allowed on element “input” at this point.

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Attribute “for” not allowed on element “input” at this point.

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"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85793.png" alt="Новая продукция – фильтр промывной" class="img" data-circle="1"> ..." Line: 4914 Column: 9 - 180
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85791.jpg" alt="Обновление контроллера Vaillant multiMATIC VRC 700" class="img" data-circle="1"> ..." Line: 4932 Column: 9 - 175
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85784.jpg" alt="Tesla Truck продолжает удивлять подробностями" class="img" data-circle="1"> ..." Line: 4950 Column: 9 - 190
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85777.jpg" alt="Доля ВИЭ в мировом энергобалансе к 2040 году вырастет до 23%" class="img" data-circle="1"> ..." Line: 4968 Column: 9 - 176
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85766.jpg" alt="Trigon XL – новое слово в технологии отопления" class="img" data-circle="1"> ..." Line: 4987 Column: 9 - 135
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85744.png" alt="Heat&Power - 2018" class="img" > ..." Line: 5006 Column: 9 - 156
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85741.jpg" alt="Новая линейка инверторных сплит-систем HHD" class="img" > ..." Line: 5025 Column: 9 - 172
"...> <input type="hidden" value="https://www.c-o-k.ru/images/news/small/cok/857/85740.png" alt="Компания Черброк - официальный дистрибьютором Carrier в РФ" class="img" > ..."

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

Line: 4634 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 4653 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 4780 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 4835 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 4854 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 4981 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 5000 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 5019 Column: 12 - 62
"... <img class="retina preload" src="/images/sp.gif" /> ..." Line: 5371 Column: 3101 - 3141
"...nofollow"><img src="/images/sp.gif" id="rbk_logo"/></a><!..."

Duplicate ID “top100Counter”.

Line: 5371 Column: 3712 - 3787
"...counter--><script id="top100Counter" type="text/javascript" src="/js/liveinternet.js"></scri..."

Stray end tag “div”.

Line: 5371 Column: 3891 - 3896
"... --></div></div><!--/ ..."

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 6 Column: 1 - 110
"...t="en" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0" /> <meta..."

Attribute “stake?→'” is not serializable as XML 1.0.

Line: 220 Column: 5 - 78
"...g' /> <input class='desc' type='hidden' value='COP23: What's at stake?→' /> <..."

Attribute “russia'→'” is not serializable as XML 1.0.

Line: 360 Column: 5 - 109
"...g' /> <input class='desc' type='hidden' value='Panels for the program 'Million solar roofs in Russia'→' /> <..."

Attribute “musk's” is not serializable as XML 1.0.

Line: 430 Column: 5 - 112
"...g' /> <input class='desc' type='hidden' value='Here's Elon Musk's Plan to Power the U.S. on Solar Energy→' /> <..."

Attribute “energy→'” is not serializable as XML 1.0.

Line: 430 Column: 5 - 112
"...g' /> <input class='desc' type='hidden' value='Here's Elon Musk's Plan to Power the U.S. on Solar Energy→' /> <..."

Attribute “saves'” is not serializable as XML 1.0.

Line: 770 Column: 5 - 83
"...g' /> <input class='desc' type='hidden' value='Elon Mask 'saves' Australia!→' /> <..."

Attribute “australia!→'” is not serializable as XML 1.0.

Line: 770 Column: 5 - 83
"...g' /> <input class='desc' type='hidden' value='Elon Mask 'saves' Australia!→' /> <..."

Attribute “story→'” is not serializable as XML 1.0.

Line: 920 Column: 5 - 96
"...g' /> <input class='desc' type='hidden' value='Devil's copper or nickel incredible story→' /> <..."

Attribute “energy'→'” is not serializable as XML 1.0.

Line: 1110 Column: 5 - 126
"...g' /> <input class='desc' type='hidden' value='The need to create 'Center of sustainable development of modern energy'→' /> <..."

Attribute “green'” is not serializable as XML 1.0.

Attribute “fields→'” is not serializable as XML 1.0.

Line: 1140 Column: 5 - 83
"...g' /> <input class='desc' type='hidden' value='News from the 'green' fields→' /> <..."

Attribute “profit'?→'” is not serializable as XML 1.0.

Line: 1160 Column: 5 - 97
"...g' /> <input class='desc' type='hidden' value='City Zero. Zero-emission or 'zero profit'?→' /> <..."

Attribute “future'” is not serializable as XML 1.0.

Line: 1473 Column: 5 - 96
"...g' /> <input class='desc' type='hidden' value='The summit 'Energy Future' started in NYC→' /> <..."

Attribute “nyc→'” is not serializable as XML 1.0.

Line: 1473 Column: 5 - 96
"...g' /> <input class='desc' type='hidden' value='The summit 'Energy Future' started in NYC→' /> <..."

Attribute “growing→'” is not serializable as XML 1.0.

Line: 1593 Column: 5 - 91
"...g' /> <input class='desc' type='hidden' value='Investment in 'green' energy growing→' /> <..."

Attribute “farm'” is not serializable as XML 1.0.

Line: 1663 Column: 5 - 94
"...g' /> <input class='desc' type='hidden' value='Home 'solar farm' and the battery Tesla→' /> <..."

Attribute “tesla→'” is not serializable as XML 1.0.

Line: 1663 Column: 5 - 94
"...g' /> <input class='desc' type='hidden' value='Home 'solar farm' and the battery Tesla→' /> <..."

Attribute “rise→'” is not serializable as XML 1.0.

Line: 1923 Column: 5 - 118
"...g' /> <input class='desc' type='hidden' value='The global 'green' energy is experiencing an unprecedented rise→' /> <..."

Attribute “systems'→'” is not serializable as XML 1.0.

Line: 2043 Column: 5 - 130
"...g' /> <input class='desc' type='hidden' value='Questions to GOST R 54475-2011 'Polymer pipes for outdoor sewerage systems'→' /> <..."

Attribute “pumps'→'” is not serializable as XML 1.0.

Line: 2113 Column: 5 - 98
"...g' /> <input class='desc' type='hidden' value='Round table 'Geothermal and air heat pumps'→' /> <..."

Attribute “gost'→'” is not serializable as XML 1.0.

Line: 2173 Column: 5 - 120
"...g' /> <input class='desc' type='hidden' value='Opposition to the article 'The polymer multilayer pipes and GOST'→' /> <..."

Attribute “correct'” is not serializable as XML 1.0.

Line: 2213 Column: 5 - 81
"...g' /> <input class='desc' type='hidden' value=''Correct' drainage details→' /> <..."

Attribute “details→'” is not serializable as XML 1.0.

Line: 2213 Column: 5 - 81
"...g' /> <input class='desc' type='hidden' value=''Correct' drainage details→' /> <..."

Attribute “emissions→'” is not serializable as XML 1.0.

Line: 2706 Column: 5 - 118
"...g' /> <input class='desc' type='hidden' value='The world's first gas-fired power plant with zero CO2 emissions→' /> <..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 5371 Column: 3360 - 3451
"...nofollow"><img src="http://counter.rambler.ru/top100.cnt?2890629" alt="Rambler's Top100" border="0" /></a></..."

The first occurrence of ID “top100Counter” was here.

Line: 5371 Column: 3175 - 3276
"...0 code --><script id="top100Counter" type="text/javascript" src="https://counter.rambler.ru/top100.jcn?2890629"></scri..."

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c-o-k.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.

c-o-k.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.

C-O-K.RU Journal Plumbing, Heating, Air Conditioning, Energy Saving

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priority - 168Optimize images

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

Optimize the following images to reduce their size by 1.6MiB (68% reduction).

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

Your page has 7 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 - 3Enable compression

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Enable compression for the following resources to reduce their transfer size by 27.5KiB (63% reduction).

priority - 2Reduce server response time

priority - 2Minify 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 16.1KiB (16% reduction).

priority - 1Leverage 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:

c-o-k.ru Desktop Resource Breakdown

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priority - 154Optimize images

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

Optimize the following images to reduce their size by 1.5MiB (66% reduction).

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

Your page has 7 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 - 4Reduce server response time

priority - 3Enable 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 27.5KiB (63% reduction).

priority - 2Leverage 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 - 2Minify 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 16.1KiB (16% reduction).

c-o-k.ru Mobile Resource Breakdown

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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.

c-o-k.ru HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Bad value “text/html, charset=utf-8” for attribute “content” on element “meta”: The legacy encoding declaration did not start with “text/html;”.

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Duplicate attribute “data-id”.

No space between attributes.

Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.

Attribute “s” not allowed on element “input” at this point.

Attribute “at” not allowed on element “input” at this point.

Attribute “stake?&rarr;'” not allowed on element “input” at this point.

Attribute “million” not allowed on element “input” at this point.

Attribute “solar” not allowed on element “input” at this point.

Attribute “roofs” not allowed on element “input” at this point.

Attribute “in” not allowed on element “input” at this point.

Attribute “russia'&rarr;'” not allowed on element “input” at this point.

Attribute “elon” not allowed on element “input” at this point.

Attribute “musk's” not allowed on element “input” at this point.

Attribute “plan” not allowed on element “input” at this point.

Attribute “to” not allowed on element “input” at this point.

Attribute “power” not allowed on element “input” at this point.

Attribute “the” not allowed on element “input” at this point.

Attribute “u.s.” not allowed on element “input” at this point.

Attribute “on” not allowed on element “input” at this point.

Attribute “energy&rarr;'” not allowed on element “input” at this point.

Attribute “saves'” not allowed on element “input” at this point.

Attribute “australia!&rarr;'” not allowed on element “input” at this point.

Attribute “copper” not allowed on element “input” at this point.

Attribute “stake?→'” not allowed on element “input” at this point.

Attribute “russia'→'” not allowed on element “input” at this point.

Attribute “energy→'” not allowed on element “input” at this point.

Attribute “australia!→'” not allowed on element “input” at this point.

Attribute “story→'” not allowed on element “input” at this point.

Attribute “energy'→'” not allowed on element “input” at this point.

Attribute “fields→'” not allowed on element “input” at this point.

Attribute “profit'?→'” not allowed on element “input” at this point.

Attribute “nyc→'” not allowed on element “input” at this point.

Attribute “growing→'” not allowed on element “input” at this point.

Attribute “tesla→'” not allowed on element “input” at this point.

Attribute “rise→'” not allowed on element “input” at this point.

Attribute “systems'→'” not allowed on element “input” at this point.

Attribute “pumps'→'” not allowed on element “input” at this point.

Attribute “gost'→'” not allowed on element “input” at this point.

Attribute “details→'” not allowed on element “input” at this point.

Attribute “emissions→'” not allowed on element “input” at this point.

Attribute “stake?→'” is not serializable as XML 1.0.

Attribute “russia'→'” is not serializable as XML 1.0.

Attribute “energy→'” is not serializable as XML 1.0.

Attribute “australia!→'” is not serializable as XML 1.0.

Attribute “story→'” is not serializable as XML 1.0.

Attribute “energy'→'” is not serializable as XML 1.0.

Attribute “fields→'” is not serializable as XML 1.0.

Attribute “profit'?→'” is not serializable as XML 1.0.