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seo Meta Description Tag Length, Examples 2013

Seo Master present to you:

Meta Description Tag, Meta Description length, Meta Description Html and Meta Description Example
Meta Description Tag
Meta Description Tag: SEO description is the Meta tag of description, it place between the <head> and </head> tag. Meta description tag is most important for getting unique visitors and clicks, but not getting to rank high for particular keywords.
The Meta description tag provides short information on webpage as a summary. Meta description will not appear in web page but it display in SERP (Search Result Pages). Google search engine give much important to Meta Description Tag to display in search result pages , but yahoo and other related search engines give somewhat different important to meta description tag, so you should not neglect it altogether.
Meta Description Tag Length: It’s not the number of words that count. It’s actually the number of characters length. Because, Google will cut off anything more than 155(roughly) characters. Optimizing for in the description and try to limit its length to 25-30 words. Also try to use no more than two sentences.

Meta Description Html: Describe metadata within an HTML document.
<head>
<meta name="description" content="Info on Meta description Tag Article " />
</head>
Meta Description Example and Syntax:
<META NAME="Description" CONTENT="informative description here">
Meta Description Strategies:
  • Differentiate the descriptions for different pages.
  • Include clearly tagged facts in the description.
  • Programmatically generate descriptions and not spammy.
  • Use quality descriptions with keyword rich. 
2013, By: Seo Master

seo Meta Keyword Tag, Length and Tips 2013

Seo Master present to you:

Meta Keyword Tag, Meta Keyword length, Meta Keyword Html and Meta Keyword Example
Meta Keyword Tag
Meta Keyword Tag: The Meta keywords tag is not such import as Title Tag or Meta description tag but is still relevant within the use of (SEO) Search Engine Optimization. The Meta keywords tag is the combination of few related pr relevant keywords or phrases used in the web contain. These words and phrases are more commonly referred to as your "keywords" and "key phrases".
You can find the Meta Keyword Tag in the head section of your source code below the title tag and Meta description tag. Meta Keyword Tag is in the Head area just like the Title Tag and Meta Description Tag.
Please see above Meta keyword image.
Meta Keyword Length: First of all list out all your keywords based on article or webpage content and key phrases separated by a comma and no space. Don’t repeat a keyword more than 3 to 4 times within this tag. This includes variations of a word. Over use of this tag is frowned upon by search engines and considered spam. Pick the 10 or 15 terms that most accurately describe the content of the page.


Meta Keyword Html:
<head>
<meta name="keywords" content="meta keyword tag, meta keyword length, meta keyword Html and meta keyword examples " />
</head>
Meta Keyword Example or Syntax:
<head>
<meta name="keywords" content="Related keywords " />
</head>
Keyword Density: Keyword density is nothing but, the number of times that your keywords appear on the page, Vs the number of words on a page — a ratio, in other words.
Keyword Phrase: This is the combination of two or more keywords to form a search query. Like “Meta Keyword Tag “– Meta Keyword Tag Tips.
Keyword Research: searching for relatives and related keywords.
Keyword Stuffing: The process of placing keywords in the META tags or main HTML body.
2013, By: Seo Master

seo Google Webmaster Tools 2013

Seo Master present to you:

Webmaster Tools Google Webmaster Tool
Webmaster Tools Google Webmaster Tool
Webmaster Tool is free provided by Google with an easy way to make your site more Google SEO friendly. Webmaster tool help you to show you, when Google last visited your website, help you diagnose problems, and give more info to us to help improve website's visibility in our search results.
Advantages of Webmaster Tool:

In these articles, we will discuss about the benefits and features of webmaster tool given below:
Google better crawl your site
Google give details info on, how we crawl Info and index your site.
Overview:
Crawl Info: when Googlebot last visited. Googlebot has successfully accessed your home page.
Indexing Stats: Pages from your site are included in Google's index.
Web Crawl Errors: At the time of crawling your website Google found few errors in the urls and provides you the info following given below:


  • Errors for URLs in Sitemaps
  • HTTP errors
  • Not found
  • URLs not followed
  • URLs restricted by robots.txt
  • URLs timed out
  • Unreachable URLs
Setting:
Use the Settings page to provide Google with information about your site and preferences. This will help us improve how we crawl and index your site.
  • Geographic target: If your website targets visitors in a particular location then this is useful to determine how your site appears in our country-specific search results and also improve our search results for geographic queries.
  • Preferred domain: The preferred domain is useful for you, how Google would like used to index your site's pages.
  • Image search: This option is useful to include your website in Google Image Labeler .
  • Crawl rate: We can set the crawl rate and Google recommend that you set a custom crawl rate only if you're experiencing traffic problems with your server.
Diagnostics:
In this we have three options and get info about web crawl, mobile crawl and content analysis.

  • Web crawl: In this we will get the information on errors and problems encountered by Google's crawlers while accessing pages on your site.
  • Mobile crawl: In this we will get the detailed information on errors and problems encountered by Google's crawlers while accessing pages on your site created specifically for viewing on mobile cell phones.
  • Content analysis: In this we will get the detailed information related to content of the WebPages like Meta description, Title Tag and non indexed content issues. These issues won't prevent your site from appearing in Google search results, but paying attention to them can provide Google with more information and even help drive traffic to your site.
Statistics:
In this we have four options and get info about Top search query, Googlebot see, crawl stats and index stats.

  • Top search queries: Impressions lists the top 20 searches in which your site appears, while Traffic shows which queries generated the most clicks.
  • What Googlebot see: The listed word or phrase is the anchor text of a link to your site. This information provides good insight into how your site is seen by others.
  • Crawl stats: These statistics provide information for those pages for Google has indexed and crawled. The PageRank distribution reflects all crawled pages in your site, not just the home page.
  • Index stats: You can use our Advanced Search page to find out how your site is indexed. Below, we've done some of these searches for you.

  • Subscriber stats: If your site publishes feeds of its content, this page will display the number of users who have subscribed to these feeds using Google products such as iGoogle, Google Reader, or Orkut.
Links:
In this we have 3 options and get info about internal links, external links and Sitelinks.

  • Pages with external links: provides a list of pages that have links pointing to them from other sites and we can download the links.
  • Pages with internal links: provides a list of pages that have links pointing to them from other internal pages.
  • Sitelinks: Sitelinks are additional links Google sometimes generates from site contents in order to help users navigate your site. Google generates these Sitelinks periodically from your site's contents.
Sitemaps:
After creating a sitemap then, we have to submit. Sitemap helps us to make sure that Google knows about all the WebPages, including URLs that may not be still indexed by Google's when they normal crawling process. After you submit a Sitemap, you'll be able to see if there are problems with it or its URLs.
Tools:
In this we have six options and get info about Analyze robots.txt, Manage site verification, Generate robots.txt, Remove URLs, Gadgets and Enhance 404 pages.
  • Analyze robots.txt: Use this tool to test your robots.txt file to see if you're blocking Googlebot from files or directories.
  • Manage site verification: Use this page to reverify all currently verified owners of this site.
  • Generate robots.txt: The Webmaster Tools robots.txt generator lets you easily create a robots.txt file in which you can specify any bots you don't want to crawl your site, as well as allowing or blocking access to specific files and directories on your server.
  • Remove URLs: Remove content from the Google index, including expediting that removal. Before you begin, you must make sure that Google and other search engines will not crawl the content you want to remove from our search results.
  • Gadgets: Use Google Webmaster Tools from your own homepage. Get errors, statistics, details about your site, and more on iGoogle.
  • Enhance 404 pages: Help users who receive a Page Not Found error find the information they need and so they can modify the error. 
2013, By: Seo Master

seo Title Tag SEO, Title Tag Length, Optimization 2013

Seo Master present to you:

Title Tag SEO, Title Tag Length, Optimization, Role of Meta Title Tag in SEO
 Title Tag SEO
Title tags are the most important of the on-page SEO (search engine optimization) factors. A title tag is a HTML code that explains the web pages content through target keywords. Title Tags are a very important tool for all major search engines to know, what is in the content of a specific web page. Creating a relevant and unique title tag is one of the most important variables in achieving high search engine positioning.
Title tag is a combination of primary and secondary keywords (Related keywords) for which we want to rank and occupy the top 10 position is major search engines like Google, Yahoo and MSN.
Ex: Primary keyword – Secondary keywords.
Syntax of Title Tag:
<head>
<title>Free SEO Articles, Google SEO Tips, SEO Tools, SEO Books, Free SEO Directory List</title>
</head>


View your Title Tag:
You find the title tag in the source code of a web page. If you want to view the title tag through the source code then click on view from the menu at the top of your browser and then click on source option.
See the above example of Title Tag image, how a Title Tag is placed within the website coding.
The Roles of the Title Tag in a Web Page:
Title tags play key role in On Page factor:
  • Title is displayed in the search results pages as a piece of information available to searchers.
  • Title is displayed by the visitor's browser in the border of the viewable screen. For this reason, titles need to clearly relate to their webpage and should unique with 66 characters of your title tag.
  • Title is used by the major search engines to display the information in based on topic your webpage.
  • Title is the most important factor in your page's ranking.
Few tips for writing good Title Tags:
  • Create a Title Tag with target keywords and related to content of the web page. So, help you to occupy the better position in search engine result page (SERP).
  • Avoid using repeating keywords and phrases in your title tag because this may be treated as spamming by search engines.
  • Don’t include your company name in the title tag or add it after few most relevant keywords, phrases into the title tag.
  • Write unique title tags for each web page of your website instead of writing a common title page for the complete site.
  • Write very meaningful, impressive, unique and content relevant title tag they are a really powerful can be best tool to optimize your site.
2013, By: Seo Master

seo Robots META Tags 2013

Seo Master present to you:

Meta Robots Tags Meta Robots All Robots.txt Robots META tag
We can control the search engines spiders with the help of robots.txt, and certain pages should not be indexed and not be followed by search engine robots. The Robots META tag, placed in the HTML <HEAD> section of a page, can specify either or both of these actions.
The default values are now assumed to be INDEX, FOLLOW, ARCHIVE, ODP, SNIPPET and YDIR.
Examples
<HEAD>
<title>SEO Robots Meta Tag </title>
<META name="robots" content="NOINDEX,NOFOLLOW" />
</HEAD>
<HEAD>
<title> SEO Robots Meta Tag </title>
<META name="googlebot" content="NOARCHIVE, NOODP, NOSNIPPET" />
<META name="slurp" content="NOARCHIVE, NOYDIR, NOSNIPPET" />
</HEAD>

TaskEntry
Indexer: ignore content;
Robot: follow links
<META name="ROBOTS" content="NOINDEX">
Indexer: include content;
Robot: do not follow links
<META name="ROBOTS" content="NOFOLLOW, INDEX ">
Indexer: ignore content;
Robot: do not follow links
<META name="ROBOTS" content="NOINDEX,NOFOLLOW">
Indexer: include content;
Robot: follow links
<META name="ROBOTS" content="INDEX,FOLLOW">
Search results pages should not show "cache" link<META name="ROBOTS" content="NOARCHIVE">
Search results pages should not display the Open Directory Project (ODP) title and description for the page.<META name="ROBOTS" content="NOODP">
Danny Sullivan provides good examples of how outdated descriptions and even titles show up when the ODP content is used for search results.
Search results pages should not display the Yahoo Directory title and description for the page <META name="ROBOTS" content="NOYDIR">
(Yahoo Slurp robot only)
Search results pages should not display any description or text context for this page. Title only, I guess.<M
2013, By: Seo Master

seo Robots.txt 2013

Seo Master present to you:

Meta Robots Tags, About Robots.txt and Search Indexing Robots
EntryMeaning
User-agent: *
Disallow:
Because nothing is disallowed, everything is allowed for every robot.
User-agent: mybot
Disallow: /
mybot robot may not index anything, because the root path (/) is disallowed.
User-agent: *
Allow: /
For all user agents, allow.
User-agent: BadBotAllow: /About/robot-policy.htmlDisallow: /
The BadBot robot can see the robot policy document, but nothing else.All other user-agents are by default allowed to see everything.This only protects a site if "BadBot" follows the directives in robots.txt
User-agent: *Disallow: /cgi-bin/
Disallow: /tmp/
Disallow: /private
In this example, all robots can visit the whole site, with the exception of the two directories mentioned and any path that starts with private at the host root directory, including items in privatedir/mystuff and the file privateer.html
User-agent: BadBot
Disallow: /

User-agent: *
Disallow: /*/private/*
The blank line indicates a new "record" - a new user agent command. All other robots can see everything except any subdirectory named "private" (using the wildcard character)
User-agent: WeirdBotDisallow: /links/listing.htmlDisallow: /tmp/
Disallow: /private/

User-agent: *
Allow: /
Disallow: /temp*
Alllow: *temperature*

Disallow: /private/
This keeps the WeirdBot from visiting the listing page in the links directory, the tmp directory and the private directory.
Allother robots can see everything except the temp directories or files,but should crawl files and directories named "temperature", and shouldnot crawl private directories. Note that the robots will use thelongest matching string, so temps and temporary will match the Disallow, while temperatures will match the Allow.
Bad Examples - Common Wrong Entries
use one of the robots.txt checkers to see if your file is malformed
User-agent: googlebot
Disallow /
NO! This entry is missing the colon after the disallow.
User-agent: sidewiner
Disallow: /tmp/
NO! Robots will ignore misspelled User Agent names (it should be "sidewinder"). Check your server logs for User Agent name and the listings of User Agent names.
User-agent: MSNbot
Disallow: /PRIVATE
WARNING! Many robots and webservers are case-sensitive. So this path will not match any root-level folders named private or Private.
User-agent: *
Disallow: /tmp/
User-agent: Weirdbot
Disallow: /links/listing.html
Disallow: /tmp/
Robots generally read from top to bottom and stop when they reach something that applies to them. So Weirdbot would probably stop at the first record, *.
Ifthere's a specific User Agent, robots don't check the * (all useragents) block, so any general directives should be repeated in thespecial blocks.
2013, By: Seo Master

seo Google Friendly Websites Guidelines, Tips on Google Friendly Web design 2013

Seo Master present to you:

Google Friendly Websites Guidelines
In before article I have give information on webmaster guidelines - general design, technical, and quality guidelines and now this articles related to creating a Google-friendly site.
Important Factors for creating a Google Friendly Site:
Provide the information for which visitors are looking:
  • Provide high-quality and unique content to visitors.
  • If the webpage’s contain unique and important information then, you receive more visitors and entice webmasters to link to your site.
  • Providing a helpful, rich and unique content to your web pages help to rank well in all search engines and you can occupy the top 10 position.
  • Make sure that, the content related to the keyword and target the those words which are mostly searched by the visitors.
Linking with other Websites:
Links help, crawlers to find your site and provide greater visibility in our search results.

  • At the time of calculating the page rank Google give importance to the back links and text related to link.
  • Google counts the number of link a page receives as part of its PageRank assessment,
  • Algorithms can find the difference in natural links from unnatural links.
  • Natural links develop dynamic nature of the web when other sites find your content valuable and think it would be helpful for their visitors. Unnatural links to your site are placed there specifically to make your site look more popular to search engines.
  • Only natural links are useful for the indexing and ranking of your site.
Make your Site Easily Accessible:
  • Create a website with a logical link structure. Every page should be reachable from at least one static text link.
  • Use a text browser, such as Lynx, to examine your site. Most spiders see your site much as Lynx would.
  • Avoid using JavaScript, cookies, session IDs, frames, DHTML, or Macromedia Flash keep you from seeing your entire site in a text browser, then spiders may have trouble crawling it.
Avoid the following things:
  • Don't Use unrelated keywords in Html pages.
  • Don’t use "cloaking".
  • Don't feel obligated to purchase a search engine optimization service. Some companies claim to "guarantee" high ranking for your site in Google's search results. While legitimate consulting firms can improve your site's flow and content, others employ deceptive tactics in an attempt to fool search engines.
  • Don't use images to display important names, content, or links.
  • Search Engine crawler doesn't recognize text contained in graphics.
  • Use ALT attributes if the main content and keywords on your page can't be formatted in regular HTML.
  • Don't create multiple copies of a page under different URLs.
  • Using Robots.txt file to block from search engines and not to index.
2013, By: Seo Master

seo Add site to Google, Submit Website to Google 2013

Seo Master present to you:

We can add our website in Google search results in free and easy way. Even need not to submit your site your site to Google. Google is a top one search engine and with the help of "spiders”, crawl the website on a regular basis and index the WebPages.
Google automatically update the database, so we need not add the in regular bases.
If your site offers specialized products, content, or services, we can reach out to the world by distributing it on
Google Web Search. For more information, visit Google Content Central.
To know, whether your site is currently included in Google's index, use site: http://online-seo-information.blogspot.com/.
For example, a search for [site: google.com] returns the following results:
http://www.google.com/search?hl=en&q=site%3Ahttp%3A%2F%2Fonline-seo-information.blogspot.com%2F&btnG=Google+Search&aq=f&oq=
As we know that Google crawls billions of WebPages’. So, sometimes, Google may miss to crawl the site.
When spiders miss a site, it's frequently for one of the following reasons:
  • We have problem in internal navigation and we have deep links, far away from the home page.
  • After Google's most recent crawl was completed, we may launch the website.
  • Depend upon the design of the site, which makes difficult for Google to crawl the pages.
  • At time of Google crawl the pages , our website was temporarily unavailable
  • With the help of Google Webmaster Tools, we can view the errors in the webpage’s.
To make a regular index by Google, daily we have to update the content and we have to follow the Google Webmaster Guidelines for building a Google friendly site. But there are very less changes that Google spiders will find a website, but with the help of Google Webmaster guidelines, we can increase your sites for showing up in our Google search results.
Creating a sitemap is one of the techniques to submit all your URLs to the Google and get detailed report in
Google webmaster tool. With the help of Google Webmaster tool, we can get information on all our current WebPages and any error they got at the time of indexing.
Note: Submitting a Sitemap doesn't guarantee that all pages of your site will be crawled or included in our search results.
2013, By: Seo Master

seo Alt Tag Definition, Alt Tag SEO 2013

Seo Master present to you:

Alt Tag Definition, Alt Tag SEO, Alt Tag Optimization, Alt Tag Tips, Image Optimization Tips
Alt Tag Definition

Alt Tag Definition:
With the help of HTML tag which provides alternative text when non-textual elements, typically images, cannot be displayed.
ALT Tag is a one of the important factor while Optimizing Image for a web page.

Alt Tag in Html:
The alt attribute is used to define an "alternate text" for an image. The value of the alt attribute is an author-defined text:
<img src="seo.gif" alt="Free SEO Article">
Important Factor for On-page Optimization Alt Tag to Image:
Alt tag generally means the alternative tag. Alt Tag is the HTML tag that tells search engine about the images. Because search engines cannot read text in the images, so with the help of alt tag, search engines come to know about images.

Search engines crawlers are able to index text but they are unable to index the text in the images can create problems. So while making a website you can not only target search engines but the outcome will be generated through visitors.
According to Google friendly site guidelines, we have to create a website SEO friendly and it must helpful to visitors. If we are using the images in the WebPages, in such a situation, alt tag is the best option to add more beauty to your website.
Here are few Tips to add Alt TAg Text to Images:
  • Use ALT Tags to label every image on your web page.
  • Only use the most relevant keyword in ALT Tag to label your image.
  • Do not add unrelated keywords in ALT Tags.
  • Try not to make ALT Tag look like spam for search engines.
  • Add keyword or phrase for important images.
  • For other images like background images, spacers, dividing lines, table borders, and other images used for designing use alt=”” as the Alternate Text.
  • Do not repeat keywords.
  • ALT Text should be a sentence or phrase, instead of keywords separated by commas.
  • The correct way to use ALT Text is:
<img src=”images/seo.jpg” alt=”Free SEO Articles” />
Where seo.jpg is the image name and “Free SEO Articles” is the ALT Tag added to the image so as to label it.
It is recommended to use ALT tag with every image of your web page.
Alt Tag optimization Tips:
  • Use alt tag for all images in the web pages and add most relevant keyword in your Alt tag.
  • Use keywords that are present in title tag, Meta tag and body text.
  • Use 2-3 relevant keywords rather than the repetition of keywords.
  • Use plural keywords in alt tag.
  • Alt tag should not be long and must not exceed more than 7 words.
  • Avoid using of irrelevant keywords in the alt tag that are not related to images instead use keywords that directly explain the images. 
2013, By: Seo Master

seo Tips and Benfits of Serach Engine Optimization (SEO) 2013

Seo Master present to you:

Benefits of Search Engine Optimization (SEO)
Benefits of Search Engine Optimization (SEO)
Search engines generate nearly 90% of unique Internet traffic. Search Engine Promotion is used to get or deliver the highest ROI (Return on Investment), compared to any other type of marketing. Search engines bring motivated clients to you.
Search Engine Optimization (SEO) offers an affordable entry point for marketing your website and an effective way to your business online. Search Engine Optimization (SEO) makes for a long-term solution is your access to sustained free traffic and a source of building brand name and company reputation.
Benefits of Search Engine Optimization (SEO):
· Improves ranking among unpaid search engine listings.
· Rank high in the search engines.
· Helps potential customers or clients to find the website.
· Drives more traffic to the website.
· Gain top positions on search engines for various keywords.
· Increases the Website’s performance on the search engines in organic and natural means.
2013, By: Seo Master

seo Common Search Engine Optimization SEO Mistakes 2013

Seo Master present to you:

Common Search Engine Optimization SEO Mistakes
Common Search Engine Optimization SEO Mistakes:
Search Engine Optimization is beast to get more free and unique traffic from search engines and target geographic locations.
There are few common mistakes that people make at the time of constructing and updating their websites .Some information may not appear to be much important, but in fact is quite necessary when it comes to search engines crawling your website.
Top SEO Mistakes:
  • Target the right keywords
  • Remember the Title tag
  • Create an HTML alternative to a Flash site
  • Refrain from using Javascript menus
  • Websites need continual maintenance
  • Metatags are not as important as they used to be
  • Don’t use images for Headings, use text
  • Use clearly defined words in you URL
  • Use quality Backlinks, not Spam
  • Utilize keywords in webpage content
To optimize your website, take those time and efforts to go through and clean things up, it will help you immensely in the long run.
2013, By: Seo Master

seo Tips for Choosing a Search Engine Optimisation Firm 2013

Seo Master present to you:


Search Engine Optimisation Firm

When choosing a search engine optimisation firm you should ask the following questions:
  • What are the best rankings or results the company has achieved for high traffic keywords in competitive markets?
    For example: it's easy to rank highly for "doncaster plumber" and much harder to rank for a search term like "fitness equipment".
  • What is the company's current client retention rate?
  • What resources does the company have available to allocate to your project?
  • What are the measures of success for your search engine marketing project?
  • What % of the company is dedicated to search engine marketing?
2013, By: Seo Master

seo Custom 404 Error Page, Tips for Custom 404 Page 2013

Seo Master present to you:

Custom 404 Error Page, Tips for Custom 404 Page, Handling 404 Error Page



Custom 404 Error Page

Custom 404 Error Page
A 404 page means, when visitors visit our website and they reach to non-existent page on your site (because they've clicked on a broken link, the page has been deleted, or they've mistyped a URL). A 404 page indicate that webpage is not found or exit.
It is better to create a custom 404 web page. A good custom 404 page will help visitors to find the information they're looking for, as well as providing helpful links and encouraging them to explore your site further. We can customize 404 pages in any way by using standard HTML.
Tips for creating an effective 404 Error page:
Give clear information to visitors that the page they're looking for not found. Use language that is friendly and inviting.
  • Create the 404 page same as the remaining exit page, including internal linking or navigation.
  • Consider adding links to your most popular articles or posts, as well as a link to your site's home page.
  • Think about providing a way for users to report a broken link.
  • Avoid custom 404 page being index by search engines and Google search results, make sure that your web server returns an actual 404 HTTP status code when a missing page is requested.
  • Use the Enhance 404 tool in Webmaster Tools to embed a search box on your custom 404 page and provide users with useful information to help them find the information they need.
Note: This article provide a information on “guidelines for creating the content of your custom 404 page”. For information on configuring your server to display your new 404 page, check your server or web hoster documentation. Make sure that your web server returns a 404 status code to users and spiders, so that search engines don't accidentally index your custom 404 page.

2013, By: Seo Master

seo 6 SEO Tricks You Must Avoid 2013

Seo Master present to you:
The past several months have afforded several high-profile examples of how search engine optimization, or SEO, should not be done. Last fall it was DecorMyEyes and the case of the abusive business proprietor, and just recently it was JCPenney and the case of the short-lived black hat success.
Such stories are by no means the only ones out there, of course--they've just drawn more publicity than most. Either way, examples like these are a rich source of instruction for the rest of us and a good reminder that in SEO--as in so many aspects of life--there's a right way to do things, and there are wrong ones.
Want to improve your company's search rankings? Then make sure you don't try to play any of these dirty SEO tricks.
1. Cloaking Your Content
The No. 1 top offending SEO technique, according to both SEO software firm SEOmoz and Google's own guidelines, is to design your Website so that search engines see one thing while human visitors see another. This is commonly called "cloaking," and it's generally considered the dirtiest trick there is.
Car maker BMW kindly provided a vivid illustration of this technique a few years back, as well as what happens to those who try it. Specifically, it was discovered that BMW's German Website was using what are called "doorway pages," or text-heavy pages sprinkled with select keywords, to attract the attention of Google's indexing system. The particular search term it focused on was "used cars."

So, when users searching for "used cars" found the BMW site at the top of Google's rankings, they were naturally tempted to click on it. What happened then, however, was that a JavaScript redirect would send them directly to BMW's main page, on which used vehicles featured minimally if at all.
BMW's reward for its cloaking efforts? Google unceremoniously kicked the BMW site out of its index, as Google engineer Matt Cutts explained in a blog post from 2006.

2. Acquiring Links from Brokers, Sellers or Exchanges
The second worst dirty trick, according to SEOmoz, as well as one apparently employed by both DecorMyEyes and JCPenney, is to pay a link broker or participate in other link schemes so as to get numerous links to your site from all across the Web.
The reason this trick is tempting is that Google's page ranking system factors in the number of links pointing to a page when it tries to evaluate that page's importance. It's also tempting because it can work well--at least in the short term, as JCPenney recently demonstrated.
Why shouldn't you use it? Well, mostly because it's in direct violation of Google's Webmaster Guidelines, and it can get you severely punished, as JCPenney learned. If you participate in a link exchange program--whereby you link to a spam site in exchange for their links to you--the outbound links you install are also another factor that will negatively affect your rankings.
3. Duplicating Content
If a Website operator offers the same content on multiple pages, subdomains, or domains, it can result in extra traffic and higher rankings--or at least, so the thinking goes. Unfortunately, it's another violation of Google's Webmaster Guidelines, and it can get you kicked out of its index.
Other instances in which content sometimes gets duplicated include affiliate programs that offer little or no original content, auto-generated content that's packed with keywords but makes little sense to human visitors, and content "scraped" from legitimate sites and then modified minimally.
Not only will such techniques get you punished by Google, but they'll also turn away human visitors. Note that when content is duplicated legitimately, such as for printer-friendly versions of articles, there are ways to alert Google so it doesn't misunderstand.
4. Keyword Stuffing
The keywords used on any Web page are a major factor in that page's ranking, but it's a bad idea to use them indiscriminately or deceptively. That includes using too many of the keywords you're hoping to optimize on--thereby exceeding any kind of naturally plausible keyword density--and it also includes packing keywords in hidden text, different-color fonts and tiny type.
Once again, Google engineer Matt Cutts offered some additional explanation in a 2007 blog post, along with an illustration: Alex Chiu, whose Web page featuring "immortality devices" was at the time stuffed with irrelevant keywords. Guess what? Chiu didn't show up in Google's index. (Since then, it appears to be back, presumably because the keyword stuffing has been corrected.)
A useful test, as Google points out in its guidelines, is to ask, "Does this help my users? Would I do this if search engines didn't exist?"
5. Banking on Negative Reviews
Although it was disputed by at least one SEO expert, the owner of the DecorMyEyes site believed that the more negative reviews and comments his site got--and there were many, thanks to his atrocious customer service--the better the site's rankings, primarily as a function of all the extra links and traffic. For a time, too, his strategy worked pretty well, for whatever reason.
In response to the case, however, Google says it has since tweaked its algorithms, though it didn't explain specifically how. My assumption is that the overall sentiment of a site's reviews are now a factor. So, lest anyone be tempted, this is not a sustainable strategy, nor a smart one.
6. Automatic Queries
If you're like most Website owners, you wonder how your pages rank on various keywords at any given moment in time. Lo and behold, there are even tools that will perform automatic queries for you, to find out the truth from Google itself.
The only problem is, Google doesn't like that at all. Tools such as WebPosition Gold, it asserts, "consume computing resources and violate our Terms of Service." Better avoid them.
There are other dirty SEO tricks out there, to be sure, but these are some of the worst ones. If you handle your company's SEO yourself, make sure you don't stray into these dangerous waters. If someone else handles SEO for you, manage them carefully so none of these slip by. 
2013, By: Seo Master
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