There are Two main stages of SEO .
The letter word SEO refers to The O part of SEO—optimization—is where the people who write all that content and put it on their sites are gussying that content and those sites up so search engines will be able to understand what they’re seeing, and the users who arrive via search will like what they see .What does the ‘preparation work’ includes? Two main stages. The first stage is the process of discovering the information and the second stage is organizing the information so that it can be used later for search purposes.
Optimization can take many forms. It’s everything from making sure the title tags and meta descriptions are both informative and the right length to pointing internal links at pages you’re proud of.When you search for something in Google (or any other search engine), an algorithm works in real-time to bring you what that search engine considers the “best” result.
Google scans the index of “hundreds of billions” It helps to find best answer your search.
You might think of a search engine as a website you visit to type (or speak) a question into a box and Google, Yahoo!, Bing, or whatever search engine you’re using magically replies with a long list of links to web pages that could potentially answer your question. Specifically, Google scans its index of “hundreds of billions” of pages in order to find a set of results that will best answer your search. Now SmNext discussing About how SEO is work.
How SEO is work ?
While you should always create website content geared to your customers rather than search engines, it is important to understand how a search engine works. Once you know this, you can move on to the next step, which is incorporating the elements that the search engine is looking for.
Most search engines build an index based on crawling, which is the process through which engines like Google, Yahoo and others find new pages to index. Mechanisms known as bots or spiders crawl the Web looking for new pages. The bots typically start with a list of website URLs determined from previous crawls. When they detects new links on these pages, through tags like HREF and SRC, they add these to the list of sites to index. Then, search engines use their algorithms to provide you with a ranked list from their index of what pages you should be most interested in based on the search terms you used.
At a basic level, there are three key processes in delivering search results I am going to cover today; crawling, indexing and ranking.
Crawling is the process by which search engines discover updated content on the web, such as new sites or pages, changes to existing sites, and dead links.
To do this, a search engine uses a program that can be referred to as a ‘crawler’, ‘bot’ or ‘spider’ (each search engine has its own type) which follows an algorithmic process to determine which sites to crawl and how often.
As a search engine’s crawler moves through your site it will also detect and record any links it finds on these pages and add them to a list that will be crawled later. This is how new content is discovered.
Once a search engine processes each of the pages it crawls, it compiles a massive index of all the words it sees and their location on each page. It is essentially a database of billions of web pages.
This extracted content is then stored, with the information then organised and interpreted by the search engine’s algorithm to measure its importance compared to similar pages.
Servers based all around the world allow users to access these pages almost instantaneously. Storing and sorting this information requires significant space and both Microsoft and Google have over a million servers each.
As SEO’s this is the area we are most concerned with and the part that allows us to show clients tangible progress.
Once a keyword is entered into a search box, search engines will check for pages within their index that are a closest match; a score will be assigned to these pages based on an algorithm consisting of hundreds of different ranking signals.These pages (or images & videos) will then be displayed to the user in order of score.
So in order for your site to rank well in search results pages, it’s important to make sure search engines can crawl and index your site correctly – otherwise they will be unable to appropriately rank your website’s content in search results.
To help give you even more of a basic introduction to this process, here is a useful video from Google which explains it quite well. Each search engine follows a similar methodology to this.