Login     Sign Up
SEO tool for better search engine rankings, enter URL to generate report
  Home Latest Reports SEO Compare Title/Meta Optimizer   XML Sitemap Generator Whois Lookup Keywords Map Website Directory   Most Backlinks   Most Valuable

byterg.ru favicon byterg.ru

Excellent Practice24
Improvement Could be Made14
Critical Issues to Attend11
Mar 13, 2020 02:28 AM

Click To Re-generate Current Report

Recommended Actions

  • Edit the title tag, ensure it contains 1-12 words, and with 10-70 characters.
  • Write more in-depth content on the topics of your page.
  • Remove some of the text content and make the text to code ration to be within 15%-70%.
  • Move the 84 inline css components to an external style sheet file.
  • Replace the 7 HTML Table tags with div tags.
  • Configure the server so that your site with or without 'www' (http://www.byterg.ru, http://byterg.ru) are resolved to the same URL.
  • Increase the traffic of your site.
  • Host the site closer to the geo location where most of your site visitors come from.
  • Implement HTTP compression for your site.
  • Implement browser caching for your site.
  • ...     36
  • Register To View All >>

Detailed Reviews

Related Category
Most related categories of this website.

audio   business   camera   database   gadgets   pictures   television   video  

Продажа систем безопасности и камер для видеонаблюдения компании «БайтЭрг»

Words count: 10    Unique Words: 10    Length: 140 characters
[ To optimize the page title, Use this SEO Title Optimizer ]

The title is too long! It has more than 70 characters.

The title will be displayed in search engine results in the form of a direct link to the site.

1. ideally, the title should contain 10 to 70 characters, including spaces. (Google displays up to 70 characters in the title, and takes into account only the first 12 words.)
2. put the most important and relevant keywords in the title, try not to repeat any word.
3. each individual page should have a unique title.
Видеорегистраторы, системы охранного видеонаблюдения и камеры для офиса в Москве и Подмосковье.

Words count: 0    Length: 177 characters
[ To optimize the page description, Use this SEO Meta Description Optimizer ]

The description is too long! It has more than 160 characters

Meta Descriptions provide concise explanations of the contents of web pages, that are commonly used by search engines on search result pages to display preview snippets for a given page.

1. it is best to keep meta descriptions between 70-160 characters.
2. a readable, compelling description using important keywords can draw a much higher click-through rate of searchers to the given web page.
3. avoid keyword stuffing, ensure each page has its own unique description.
Google SERP Preview
Продажа систем безопасности и камер для видеонаблюдения ... www.byterg.ru/
Видеорегистраторы, системы охранного видеонаблюдения и камеры для офиса в Москве и Подмосковье.

[ To optimize this Google SERP preview, Use this Google SERP Optimizer ]

This is how your site looks like in Google Search Result Page.

an optimized SERP snippet will have a higher click through rate.

1. make sure the title is clear, simple, straight to the point.
2. make sure the description is relevant and properly summarized the page content.
систем видеoнaблюдения, цифровых систем видеoнaблюдения, продажа систем видеoнaблюдения

Words count: 8    Length: 159 characters    keyword phrases count : 3

The keywords is too short!
[ To optimize the meta keywords, Use this SEO Meta Keywords Optimizer ]

Keyword Occurrences in Different Sections
Wordkeyword domain title descriptionheadingcontent
2 words:33% (1/3)
систем видеoнaблюдения 0   (0%)
3 words:67% (2/3)
цифровых систем видеoнaблюдения 0   (0%)
продажа систем видеoнaблюдения 0   (0%)

Meta keywords should not be ignored, though they are not a major ranking factor for most of search engines nowadays. A Meta keywords tag is supposed to be a brief and concise list of the most important themes of your page

1. keep your list of keywords or keyword phrases down to 10 - 20 unique words or phrases.
2. separate the words or phrases using a comma (you do not need to leave a space between words separated by commas).
3. do not repeat words or phrases.
4. put your most important word or phrases at the beginning of your list.
Keywords Cloud
This keywords cloud gives your an idea of what are those important keywords appears in your website.

ahd  bestdvr  cnb  cvi  econom  light  mix  tvi  байтэрг  безопасности  видеoнaблюдения  видеокамер  видеокамера  видеокамеры  видеонаблюдения  видеорегистратор  видеорегистраторы  дилеров  дюймов  камер  камеры  карта  компании  лист  мвк  мониторы  монтаж  москве  наблюдения  оборудование  оборудованы  прайс  решения  россии  систем  системами  системы  скуд  уличная  форматная 

Top 20 Keywords
Total Terms Count: 540

Excellent! No terms has a density of more than 3%, all are optimized to be within 1% - 3%.

Top 20 terms occurance and density
KeywordIn DomainIn TitleIn DescriptionIn Heading In Body Density
байтэрг 15 2.78%
камеры 15 2.78%
мвк 14 2.59%
компании 12 2.22%
видеокамеры 10 1.85%
видеорегистраторы 9 1.67%
видеонаблюдения 9 1.67%
камер 6 1.11%
россии 6 1.11%
bestdvr 6 1.11%
ahd 6 1.11%
безопасности 6 1.11%
системы 5 0.93%
монтаж 5 0.93%
light 5 0.93%
оборудование 5 0.93%
дюймов 4 0.74%
видеокамер 4 0.74%
мониторы 4 0.74%
систем 4 0.74%

keyword density can be used as a factor in determining whether a web page is relevant to a specified keyword or keyword phrase.

1. the optimum keyword density to be 1.0% - 3.0%. Using a keyword more than that could be considered search spam.
2. overuse of keywords, a practice called keyword stuffing, will cause a web page to be penalized.

Excellent! The page is using HTML headings (<H1> - <H6>) and inline emphasis tags (<EM><B><I><EM><STRONG>)




Приглашаем на ТБ-Форум-2020


МВК-М720 Street (3,6)
Цифровой видеорегистратор BestDVR-400Light-AM (для камер AHD-M 720p), класс Econom
МВК-МV720 Street (2,8-12)
Цифровой видеорегистратор BestDVR-1600 Light-AM (для камер AHD-M 720p), класс Econom
МВК-МV1080 Ball (2,8-12)
<B> (11)1996 году
100 000 изделий
200 человек
трех высших отраслевых
крупнейшим в России производителем камер наблюдения
Более 38 000
16 000
15 000
Скачать прайс-лист
<STRONG> (1)

HTML headings and emphasis tags are the most basic forms to indicate important content.

1. use your keywords in the headings and make sure the first level heading (<H1>) includes the most important keywords.
2. never duplicate the title tag content in the heading tags.
3. for more effective SEO, use only one <H1> tag per page
Reading Level

The page text content is a bit too simple.

Ensure your page content text can be read and understood by most of your site visitors. not too difficult nor too simple.

1. a score below 30, indicates the text content is too difficult to be read and understood.
2. a sore above 80, may suggest that the site is lack of in-depth and expertise of its topics (low quality content).
3. an optimal reading level score shall be 50-70.
the website does not declare its language in use.

the detected language is : ru

Declare the language in use can help search engine to better understand and rendering your page, especially when special characters are encountered.
Page Encoding
windows-1251 Excellent! the website declared its character encoding.

Declare the character encoding can help search engine to better rendering your page, especially when it comes to
non-asii characters.
Excellent! the website has a shortcut favicon image.

the website does not have a RSS Feed.

http://byterg.ru/robots.txt Excellent! the website has a Robots.txt file to regulate search engine crawlers access.

Robots.txt file can be used to regulate access of search engine crawlers, properly configured robots.txt file can help
crawlers to better understand your website.

1. grand robots access to those pages you wish them to crawl.
2. restrict access to those pages you do not wish search engines to see and crawl.
XML Sitemap
http://byterg.ru/sitemap.xml Excellent! the website has a XML Sitemap to guide search engine crawlers for indexing its pages.
[ To generate XML sitemap, Use this XML Sitemap Generator ]

Sitemap helps search engine crawler to identify your website pages.

1. ensure all your important pages are listed in the sitemap.
2. ensure to indicate the frequency of change and importance of each url.
3. inform search engines of the location/URL of your sitemap (eg, For Google, you can set the website sitemap location through Google Webmaster management panel).
Loading Time
1.95 seconds - 6.33 Kb/s

Excellent! the loading speed is pretty fast!

Estimated loading time for different internet connections
Optical Fibre
1.76 s 0.01 s 0.01 s 0.00 s 0.99 ms

Site speed is becoming an crucial ranking factor. Slow page loading is one of the biggest complains of web users. If the loading time is too long, you may need to check your server, network, or system codes and structure.

1. ideal loading time is less than 1 seconds, if it take more than 5 seconds to load your site, likely users will run out of patience, so do search engines.
2. improve your SEO by optimizing your website to have a small size and faster responding server.
Total Size
12 Kb (12,335 bytes)

The page is a bit too small, it may not have enough relevant content to rank well!

Page size affects the speed of your website.

1. try to keep you page size between 30K-150K
2. put javascript and style sheet in separate files, and link them to the main page.
3. use optimized images for web and set up your server with gzip for downloading
Text To Code Ratio
Total Size Text Size HTML Code Size Text/HTML Code Ratio
12 Kb (12,335 bytes) 5 Kb (5,494 bytes) 7 Kb (6,841 bytes) 80.31 %

The Text/HTML Code Ratio is a bit too high, it might be considered as spam by search engines.

the ratio of text to HTML code should always be above 15% for good SEO gain,
it is below 15% then that means that your website probably needs more text content.

1. a ratio between 25% and 70% is ideal, when it goes beyond than that, the page might run the risk of being considered as spam. As long as the content is relevant and gives essential information, it is a plus point to have more of it.
2. improve your SEO by adding more relevant text to your pages and also increasing your keyword density.
Excellent! No flash component is detected on this page.

Flash content can not be properly indexed by search engines, and normally flash file is large in size, which slow down the loading of your page.

1. avoid flash content whenever possible if you wish to have a fast and SEO friendly website.
Excellent! No frame is detected on this page.

Framesets and individual frames could cause problem for search engine to crawl your pages

1. avoid frames whenever possible.
2. search engines do not like frames.
3. use iframe instead if you really have no choice.
Inline CSS
84 Inline CSS components are detected on this page.

It is a good practice to move inline CSS rules into an external CSS file in order to make your page lighter and increasing the text to code ratio.

1. move inline css rules to external css file.
2. separate style from html.
Nested Table
5 nested tables are detected among the total 7 tables in this page.

nested tables could slow down page rendering and lead to bad user experience.

1. avoiding <table> for your page layout.
2. using <div> instead of <table>.
Plain Text Email
Excellent! No Plain Text Email is detected on this page.

Redirect Count
Excellent! No redirection is detected for loading this page.

Excellent! HTTPS is used for your page.

WWW Resolve
the websites http://www.byterg.ru and http://byterg.ru DOES NOT resolved to the same url.

Search Engines treat URLs with or without "www" as two different records.

1. edit your .htaccess file and permanently redirect one to the other (eg redirect www.mysite.com to mysite.com).
IP Canonicalization
IP address of the site is forwarded to https://premium36.timeweb.ru/parking/?ref=, instead of to its domain name site byterg.ru.

URL Rewrite
Non SEO Friendly URLs

You may use url rewrite techniques to make these 7 urls to be SEO friendly.

clean, short and relevant URLs are favoured by users and search engines

1. use url rewrite to turn dynamic pages with query parameters into seo friendly static pages.
2. put your important keywords in the url.
3. good urls are not only user friendly but also seo friendly.
Underscore In URL
URLs with underscore

You have 3 Urls with underscore.

Search Engines treat hyphen as word separator, they do not treat underscore as word separator.

1. use hyphen "-" instead of underscore "_" to optimize your page url.
2. help search engines to better understand your url, eventually will benefit your page`s ranking.
Internal Links
(link to pages within this domain)
External Links
(link to pages on other websites)
136 4 140

You have more than 100 links (140).

Internal Links (link to pages within this domain) - 136
URL Anchor Text
http://byterg.ru/catalogue/videocamery-mvc/Видеокамеры МВК производства к...
http://byterg.ru/about/Крупнейший российский производ...
http://byterg.ru/about/О Компании
http://byterg.ru/about/tradinghouse/Торговый дом
http://byterg.ru/buy/Где купить?
http://byterg.ru/buy/moscow/Карта дилеров в Москве
http://byterg.ru/buy/russia/Карта дилеров в регионах
http://byterg.ru/buy/list.phpОбщий список дилеров
http://byterg.ru/installation/montage-cctv/Монтаж CCTV
http://byterg.ru/installation/montage-ops/Монтаж ОПС
http://byterg.ru/installation/montage-skud/Монтаж СКУД
http://byterg.ru/installation/montage-soue/Монтаж СОУЭ
http://byterg.ru/servis/Сервисные центры
http://byterg.ru/solutions-new/transport/Для транспорта
http://byterg.ru/solutions-new/specialized-vehicles/Для спецтехники
http://byterg.ru/solutions-new/extended-perimeters/Для протяженных периметров
http://byterg.ru/solutions-new/trade/Для торговли
http://byterg.ru/solutions-new/industrial-objects/Для промышленных объектов
http://byterg.ru/solutions-new/dlya-goroda/Для города
http://byterg.ru/news/detail.php?ID=21343С наступающим 2020 годом!
http://byterg.ru/news/detail.php?ID=21342Поздравляем с Днем Полиции!
http://byterg.ru/news/detail.php?ID=21341Приглашаем на Интерполитех-201...
http://byterg.ru/news/detail.php?ID=21339Команда «Время летит», в соста...
http://byterg.ru/news/detail.php?ID=21338Компания БайтЭрг переезжает
http://byterg.ru/news/Все новости
http://byterg.ru/news/subscribe/Подписка по e-mail
http://byterg.ru/tags/ip-kamery/IP-камеры для наружного и внут...
http://byterg.ru/tags/antivandalnye-kamery/Антивандальные камеры
http://byterg.ru/tags/videoregistratory-16-kanalov/Видеорегистраторы 16 каналов
http://byterg.ru/tags/videoregistratory-4-kanala/Видеорегистраторы 4 канала
http://byterg.ru/tags/videoregistratory-8-kanalov/Видеорегистраторы 8 каналов
http://byterg.ru/tags/videoregistratory-avtomobilnye/Видеорегистраторы автомобильны...
http://byterg.ru/tags/videoregistratory-hd/Видеорегистраторы с HD-разреше...
http://byterg.ru/tags/vnutrennie-kamery/Внутренние камеры
http://byterg.ru/tags/kamery-vysokogo-razresheniya/Камеры высокого разрешения
http://byterg.ru/tags/kamery-s-variovokalnym-obectivom/Камеры с вариофокальным объект...
http://byterg.ru/tags/kamery-den-noch/Камеры «день/ночь»
http://byterg.ru/tags/kupolnye-kamery/Купольные камеры
http://byterg.ru/tags/miniatyurnye-kamery/Миниатюрные камеры
http://byterg.ru/tags/monitory-17-dyuymov/Мониторы 17 дюймов
http://byterg.ru/tags/monitory-19-dyuymov/Мониторы 19 дюймов
http://byterg.ru/tags/monitory-32-dyuymov/Мониторы 32 дюймов
http://byterg.ru/tags/monitory-40-dyuymov/Мониторы 40 дюймов
http://byterg.ru/tags/cnb/Оборудование видеонаблюдения б...
http://byterg.ru/tags/ulichnye-kamery/Уличные камеры
http://byterg.ru/tags/cvet-kamery/Цветные камеры
http://byterg.ru/price/Скачать прайс-лист
http://byterg.ru/catalogue/macroscop/Оборудование Macroscop
http://byterg.ru/catalogue/videocamery-mvc/Видеокамеры МВК – эффективност...
http://byterg.ru/catalogue/videokamery-mvc-light/Видеокамеры серии МВК-Light - ...
http://byterg.ru/catalogue/videokamery-cnb/Видеокамеры CNB
http://byterg.ru/catalogue/bestdvr/Видеорегистраторы BestDVR
http://byterg.ru/catalogue/samsung-electronics/Оборудование для видеонаблюден...
http://byterg.ru/catalogue/videonabludenie/Оборудование для видеонаблюден...
http://byterg.ru/catalogue/ip-videocamery-mvc-light-ip/IP-видеокамеры МВК-Light-IP
http://byterg.ru/catalogue/ip-videocamery-cnb/IP-видеокамеры CNB
http://byterg.ru/catalogue/ip-videokamery-hikvision/IP-видеокамеры HIKVISION
http://byterg.ru/catalogue/ip-videoregistratory-bestnvr/IP-видеорегистраторы BestNVR: ...

External Links (link to pages on other websites) - 4
URL Anchor Text

reasonable number of links (below 100) per page will give a better user experience.

1. keep the number of links per page below 100.
2. having more than 100 links in a single page will lead to a bad user experience, and it possibly runs into the risk of been considered as spam.
3. search engines may not follow all the links if you have too many of them in a single page.
Total Images Alt Present Alt Missing
35 27 8

8 images do not have Alt values.

Image URL - 35
http://byterg.ru/bitrix/images/i_home.gifна главную
http://byterg.ru/bitrix/images/i_sitemap.gifкарта сайта
http://byterg.ru/bitrix/images/i_feedback.gifобратная связь
http://byterg.ru/upload/medialibrary/054/4-bogatyrya-new-cornericon.jpgВидеокамеры МВК производства к...
http://byterg.ru/bitrix/images/phone_byterg_multi.gifГорячая линия ООО «БайтЭ...
http://byterg.ru/bitrix/images/brand/mbk1.pngПрофессиональные российские ви...
http://byterg.ru/bitrix/images/brand/Средние_МВК_light_IP.pngIP-камеры вашей мечты
http://byterg.ru/bitrix/images/brand/mvc_light_2015.pngДоступные видеокамеры
http://byterg.ru/bitrix/images/brand/best_dvr_anytask.pngВидеорегистраторы для любых за...
http://byterg.ru/bitrix/images/brand/Best_NVR_net_camers.pngВидеорегистраторы для сетевых ...
http://byterg.ru/bitrix/images/brand/dozor.pngПерсональные видеорегистраторы
http://byterg.ru/bitrix/images/brand/analog_hd.pngЦветные видеокамеры
http://byterg.ru/upload/iblock/488/ffb7b11609.jpgПриглашаем на ТБ-Форум-2020
http://byterg.ru/upload/iblock/956/qckh_txbckjmamuzvjxzx-1%20copy.pngБлагодарственное письмо от ФГУ...
http://byterg.ru/upload/iblock/04a/innotechexpo-1.pngДиплом за «Инновационный проду...
http://byterg.ru/upload/iblock/71a/zmyp_2.pngОтраслевая национальная премия...
http://byterg.ru/upload/iblock/e57/tutz_togtrhasb-2006%20copy.pngПочетная награда рынка безопас...
http://byterg.ru/upload/iblock/d77/axis.jpgСертификат «Gold Partner-2011»...
http://byterg.ru/upload/iblock/e48/zsnq_Sfitex-2009%20copy.pngСертификат «Sfitex-2009»
http://byterg.ru/bitrix/images/brand/mvk2.gifВидеокамеры MBK
http://byterg.ru/upload/medialibrary/c65/Hikvision logo_2.jpgHIKVISION
http://byterg.ru/bitrix/images/promogorup.gifПромогрупп - разработка, внедр...

search engines cannot `see` images, proper Alt content will help them to better understand and index images.

1. always add alt attributes to images. Alt is mandatory for accessibility and for valid XHTML.
2. words used within an image`s Alt attribute should be its text equivalent and convey the same information.
3. use a human-readable caption and descriptive text around the image.
Style Block In Same Page Links to External Style Files Total
2 3 5

You have 2 style blocks in the same file, try to put them in a separate file.

Links To External Stylesheet Files - 3
Stylesheet URL rel type

Scripts Block In Same Page Links to External Script Files Total
28 11 39

Too many (11) external scripts files , it will slow down the downlaoding.

Links To External Script Files - 11
Script URL Type

put scripts together and link them from an external files rather then put them in the same file as the main page.

1. reduce the use of in-page scripts, put them in separate files and link them in.
2. reduce the number of external script files, it will help browser to make lesser number of http requests from the server.
3. optimize or compress the script files to have smaller size and faster loading.
Blog Or News Release
Link to Blog / News Release Page

Excellent! we have found blog linked to your site.

Having a blog is a great way to provide fresh content and retain users, search engines favour it too.

1. regularly update your blog and provide fresh and quality content.
2. relevant blogs of your website topics, generate more credits in the eyes of your visitors, as well as search engines.
DMOZ Listing

Excellent! the website is listed in the DMOZ open directory. DMOZ Open Directory Project

Google Analytics
UA-31053658-6 Excellent! the website implements Google Analytics.

Social Media Integration
Your site is not integrated with Facebook, Twitter or Google+.

Facebook PageNot Found
Twitter AccountNot Found
Google+ PageNot Found


Excellent! the website has a good Trustworthiness Score (73/100).

0 - 19 20 - 39 40 - 59 60 - 79 80 - 100
Very Poor Poor Unsatisfactory Good Excellent

Users are concerned about the safety of their online transactions. Trustworthiness rating is based on real user ratings and that tells you how much other users trust this site, so do the serch engines. note: this trustworthiness score is provided by WOT (Web of Trust).

1. pay attention to the look and design of your site, many people look for visual cues when assessing a site`s credibility
2. make your site easy to use, sites that are easy to navigate are perceived as being more trustworthy.
3. make it easy for user to contact you, users will be more comfortable and feel more secured shall they need to get in touch with you.
Child Safe
92 Excellent! the website has a good Child Safe Score (92/100).

0 - 19 20 - 39 40 - 59 60 - 79 80 - 100
Very Poor Poor Unsatisfactory Good Excellent

Safe Browsing
Safe! the site byterg.ru is NOT currently listed as suspicious, most-likely it is clean from malware and phining code [ verify this by Google Safe Browsing ]

Ensure that your site is malware free and does not cause harm to users` computers.

1. do not put virus, malicious worms, adwares, trojans, spywares and suspicious phishing code in your server.
2. take suspicious behaviours seriously, have a regular check-up and monitor closely of your server`s log files.
3. if your site is black-listed by Google as suspicious, clean it up before requesting for a review.
Traffic Rank
2,691,644th most visited website in the world.
Your site is not among the most visited 1 million websites in the world.
Websites On Same Server
Excellent! You do have very few domains (10 - wafstudio.net, easylang.org, bestjewel.ru, wexnews.ru, byterg.ru, bestdvr.ru, bestnvr.ru, byterg.com, xn----7sbabaocjxke2bsg5b.xn--p1ai, xn--90acfd1ddh.xn--p1ai) hosted on the same server as byterg.ru (ip :

Too many domains hosted on the same server is an indicator that you are not really serious about your website, and your site will have a higher chance to be surrounded by bad neighbours.

1. the fewer domains hosted on the same server/ip the better.
2. avoid shared hosting whenever possible, especially when there are already hundreds or thousands of sites are hosted on the same server.
3. dedicated ip or resources for your site not only do good to your site visitors but also favoured by search engines.
Server Location
your server (IP : is located at Russian Federation  
ensure your server is not located far away from most of your site visitors.
HTTP Compression

your website server does not support HTTP Compression.


your website server does not support Caching.

Server Signature
Excellent! the website server signature is off.

A secure and safe server is not only good for your site visitors but also good for search engines.

1. server software version information can be utilized by malicious visitors to attack your server.
2. by turning off the server signature, you actually have made your server a little bit more secure.
3. for Apache server - edit the apache2.conf or the .htaccess file to turn server signature off.
Domain Age
19 years, 30 days old ( 1st registered on : 2001-03-06 )

[ To check the detailed whois info, Use this Whois Lookup Tool ]

excellent, the domain age is old enough.

Domain Expires
0 years, 339 days from today ( expires on : 2021-03-11 )

[ To check the detailed whois info, Use this Whois Lookup Tool ]

domain is expiring in less than a year.

Domain Info
byterg.ru ( 9 characters )

Domain Registrar : RUCENTER-REG-RIPN

[ To check the detailed whois info, Use this Whois Lookup Tool ]

Domain Created On Last Modified On Expires On
2001-03-06 2020-03-13 2021-03-11
19 years, 30 days old 0 years, 23 days ago 0 years, 339 days from today
19 years, 30 days old

Domain Name Servers used by byterg.ru
DNS Name IP Address

Domain is going to expire in less than a year time (0 years, 339 days from today), try to renew it for more than one year!

domain name choice and domain age are crucial for SEO.

1. keep the domain name short and relevant to the content, which will be easier to be remembered and related to.
2. older domain tends to be more trustworthy.
3. register a domain for more than 1 year, and search engine will think it is a serious business.


Generating Report ......

Completed 0 of 30 tasks in generating the seo report!

"SEO Tools to Audit Websites for Improving Search Engine Rankings."

HP Most Optimized

Terms of use   |   News   |   FAQ   |   Contact Us

copyright © 2011-2020 seocert.net, all rights reserved