
Friday, November 19, 2010
My Top 5 SEO Tips

Thursday, November 18, 2010
Miscellaneous information on search engines

Common search engine principles

To understand seo you need to be aware of the architecture of search engines. They all contain the following main components:
Spider - a browser-like program that downloads web pages.
Crawler – a program that automatically follows all of the links on each web page.
Indexer - a program that analyzes web pages downloaded by the spider and the crawler.
Database– storage for downloaded and processed pages.
Results engine– extracts search results from the database.
Web server – a server that is responsible for interaction between the user and other search engine components.
Specific implementations of search mechanisms may differ. For example, the Spider+Crawler+Indexer component group might be implemented as a single program that downloads web pages, analyzes them and then uses their links to find new resources. However, the components listed are inherent to all search engines and the seo principles are the same.
Spider. This program downloads web pages just like a web browser. The difference is that a browser displays the information presented on each page (text, graphics, etc.) while a spider does not have any visual components and works directly with the underlying HTML code of the page. You may already know that there is an option in standard web browsers to view source HTML code.
Crawler. This program finds all links on each page. Its task is to determine where the spider should go either by evaluating the links or according to a predefined list of addresses. The crawler follows these links and tries to find documents not already known to the search engine.
Indexer. This component parses each page and analyzes the various elements, such as text, headers, structural or stylistic features, special HTML tags, etc.
Database. This is the storage area for the data that the search engine downloads and analyzes. Sometimes it is called the index of the search engine.
Results Engine. The results engine ranks pages. It determines which pages best match a user's query and in what order the pages should be listed. This is done according to the ranking algorithms of the search engine. It follows that page rank is a valuable and interesting property and any seo specialist is most interested in it when trying to improve his site search results. In this article, we will discuss the seo factors that influence page rank in some detail.
Web server. The search engine web server usually contains a HTML page with an input field where the user can specify the search query he or she is interested in. The web server is also responsible for displaying search results to the user in the form of an HTML page.
Wednesday, November 17, 2010
Robots.txt
Structure of a Robots.txt File
The structure of a robots.txt is pretty simple (and barely flexible) – it is an endless list of user agents and disallowed files and directories. Basically, the syntax is as follows:
User-agent:
Disallow:
“User-agent” are search engines' crawlers and disallow: lists the files and directories to be excluded from indexing. In addition to “user-agent:” and “disallow:” entries, you can include comment lines – just put the # sign at the beginning of the line:
# All user agents are disallowed to see the /temp directory.
User-agent: *
Disallow: /temp/
The Traps of a Robots.txt File
when you start making complicated files – i.e. you decide to allow different user agents access to different directories – problems can start, if you do not pay special attention to the traps of a robots.txt file. Common mistakes include typos and contradicting directives. Typos are misspelled user-agents, directories, missing colons after User-agent and Disallow, etc. Typos can be tricky to find but in some cases validation tools help.
The more serious problem is with logical errors. For instance:
User-agent: *
Disallow: /temp/
User-agent: Googlebot
Disallow: /images/
Disallow: /temp/
Disallow: /cgi-bin/
The above example is from a robots.txt that allows all agents to access everything on the site except the /temp directory. Up to here it is fine but later on there is another record that specifies more restrictive terms for Googlebot. When Googlebot starts reading robots.txt, it will see that all user agents (including Googlebot itself) are allowed to all folders except /temp/. This is enough for Googlebot to know, so it will not read the file to the end and will index everything except /temp/ - including /images/ and /cgi-bin/, which you think you have told it not to touch. You see, the structure of a robots.txt file is simple but still serious mistakes can be made easily.
Tools to Generate and Validate a Robots.txt File
Having in mind the simple syntax of a robots.txt file, you can always read it to see if everything is OK but it is much easier to use a validator, like this one: http://tool.motoricerca.info/robots-checker.phtml. These tools report about common mistakes like missing slashes or colons, which if not detected compromise your efforts. For instance, if you have typed:
user agent: *
Disallow: /temp/
this is wrong because there is no slash between “user” and “agent” and the syntax is incorrect.
In those cases, when you have a complex robots.txt file – i.e. you give different instructions to different user agents or you have a long list of directories and subdirectories to exclude, writing the file manually can be a real pain. But do not worry – there are tools that will generate the file for you. What is more, there are visual tools that allow to point and select which files and folders are to be excluded. But even if you do not feel like buying a graphical tool for robots.txt generation, there are online tools to assist you. For instance, the Server-Side Robots Generator offers a dropdown list of user agents and a text box for you to list the files you don't want indexed. Honestly, it is not much of a help, unless you want to set specific rules for different search engines because in any case it is up to you to type the list of directories but is more than nothing.
what are the advantages of SEO Services??
How to Increase Organic Traffic in site

Top 25 seo blog

The Top 25 SEO Blogs list, instead, ranks the blogs according to their Google Pagerank, Alexa rank, number of Bloglines subscribers and Technorati authority. Each factor has a score from 0 to 10, and the maximum score for each blog is 40. Details about the algorithm can be found below the table.
Blogs considered: the list considers only blogs that have a high percentage of SEO-related content. Topics might range from SEO news coverage to general SEO discussion and link building.
Google Pagerank (0 to 10): the actual Pagerank was used on the algorithm.
Alexa Rank (0 to 10): Ranges were determined based on the Alexa Rank (i.e., 100k and up, 80k-100k, 60k-80k, 40k-60k) and each range was assigned a number (1 to 10).
Bloglines Subscribers (0 to 10): Subscriber ranges were determined (i.e., 1-50, 50-100, 100-150, 150-300) and each range was assigned a number (1 to 10).
Technorati Authority (0 to 10): Ranges were determined based on Technorati’s Authority rank (i.e., 1-125, 125-250, 500-750,750-1000) and each range was assigned a number (1 to 10)..
History of SEO

what is simply SEO means???
Many may be not knowing actually what is SEO..simply it is search engine optimization,let me tel u in detail...
Search engine optimization is the process of improving the visibility of a website or a web page in search engines via the "natural" or un-paid search results. Other forms of search engine marketing (SEM) target paid listings. In general, the earlier , and more frequently a site appears in the search results list, the more visitors it will receive from the search engine. SEO may target different kinds of search, including image search, local search, video search and industry-specific vertical search engines. This gives a website web presence.
As an Internet marketing strategy, SEO considers how search engines work and what people search for. Optimizing a website may involve editing its content and HTML and associated coding to both increase its relevance to specific keywords and to remove barriers to the indexing activities of search engines. Promoting a site to increase the number of back links, or inbound links, is another SEO tactic.
The acronym "SEO" can refer to "search engine optimizers," a term adopted by an industry of consultants who carry out optimization projects on behalf of clients, and by employees who perform SEO services in-house. Search engine optimizers may offer SEO as a stand-alone service or as a part of a broader marketing campaign. Because effective SEO may require changes to the HTML source code of a site and site content, SEO tactics may be incorporated into website development and design. The term "search engine friendly" may be used to describe website designs, menus, content management systems, images, videos, shopping carts, and other elements that have been optimized for the purpose of search engine exposure.
Another class of techniques, known as black hat SEO or spamdexing, uses methods such as link farms, keyword stuffing and article spinning that degrade both the relevance of search results and the user-experience of search engines. Search engines look for sites that employ these techniques in order to remove them from their indices.