SEO Tool and Techniques
Posted: September 4, 2010 at 6:46 am
SEO Tool and Techniques
SEOHelpline goal is to help you improve your site’s interaction with users and search engines. Even though this guide won’t give up any new secrets that increase your page ranks for your site, it will make it easier for search engines to crawl and index your site.
In SEOHelpline section is devoted specifically to search engine marketing, as opposed to search engine optimization and placement. If search engine marketing is what keeps you up at night, these articles should help you find your way and signicantly improve your search engine marketing (SEM) skills. The whole purpose of search engine marketing is to attract new prospects and buying customers. In certain cases however, your sales could become limited, for the simple reason that not everybody is seeking the products or services your company offers. Across the World Wide Web, if there are only 6,000 searches a month for the keywords “industrial pump rebuilding”, it will be hard for you to make more people search for that keyword phrase when Word Tracker tells us there has been only 6,000 searches for those three keywords in any given month or period.
SEO Glossaries:-
Crawler
Crawler-based search engines, such as Google, create their listings automatically. They “crawl” or “spider” the web, then people search through what they have found. If you change your web pages, crawler-based search engines eventually find these changes, and that can affect how you are listed. Page titles, body copy and other elements all play a role. All crawlers will find pages to add to their web page indexes, even if those pages have never been submitted to them. However, some crawlers are better than others. This section of the chart shows which search engines are likely to do a “deep crawl” and gather many pages from your web site, even if these pages were never submitted. In general, the larger a search engine’s index is, the more likely it will list many pages per site. See the Search Engine Sizes page for the latest index sizes at the major search engines.
Crawler or Web Spider
A spider web or crawler is a program that inspects the World Wide Web pages in a methodical and automated. One of the most common uses are given is to create a copy of all visited web pages for later processing by a search engine that indexes pages provide a quick search system. The bots often spider web (the most widely used of these).
Web spiders begin visiting a list of URLs; it identifies the hyperlinks on those pages and added to the list of URLs to visit on a recurring basis according to certain set of rules. Normal operation is that it gives the program an initial group of addresses, the spider download these addresses, analyzes the pages and look for links to new pages. Then download these new pages, examines its links, and so on. Among the most common spiders of the web are:
* Create the index of a search engine.
* Analyze the links of a site to find broken links.
* Collect information for a certain type, pricing of products to compile a catalog.
How does any spider start its travels over the Web?
The usual starting points are lists of heavily used servers and very popular pages. The spider will begin with a popular site, indexing the words on its pages and following every link found within the site. In this way, the spidering system quickly begins to travel, spreading out across the most widely used portions of the Web.
Google began as an academic search engine. How quickly spiders can work. They built their initial system to use multiple spiders, usually three at one time. Each spider could keep about 300 connections to Web pages open at a time. At its peak performance, using four spiders, their system could crawl over 100 pages per second, generating around 600 kilobytes of data each second.
Keeping everything running quickly meant building a system to feed necessary information to the spiders. The early Google system had a server dedicated to providing URLs to the spiders. Rather than depending on an Internet service provider for the domain name server (DNS) that translates a server’s name into an address, Google had its own DNS, in order to keep delays to a minimum.
Basic SEO Glossary:-
A/B Test –. The practice of creating two documents or sites that are nearly the same for the purpose of determining which design or copy variation produces the better result. Often used in PPC marketing, occasionally used in organic SEO (q.v.).
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