How search engine works [Step by Step].

 Search engine process :-

              An early search engine was a 1990 programmer called archie. search engine like google, bing, yahoo and ash.com have come long long way.

The search engine process is

(1)Keyword

(2)Relevance

(3)Targeting

(4)Informs Startegy

                                          Search engine each use their own software programmers, but the way they work is pretty similar. They all perform three tasks.

• First, they examine content they learn about and have permission to see. That's called "crawling".
• Second, they categories each pieces of content. That's called "indexing".
• Third, they decided which content is most useful to searchers. That's called "ranking".
  

Crawling :-

                 Search engine crawling the internet to discover content, like, web pages, images and videos. Each search engine uses computer programmer called "bots"(short for "robot"). "crawling" or "spiders" to make their way through the pages. The bot hop from page to page by following links to other pages. These bot never stop. There sole purpose is to visit and revisit pages, looking for new links and new content to include in the index.

Indexing :- 

                It is the second part of the process. The index is a gigantic list of all the web pages and content found by the bots. The search engine uses the index as the source of information display on the search result pages. But not everything the bots find makes it into a search engine index.

Ranking :-

                 When you type in a search, the engine compaires the words and phrases you use to its index, looking for matching results.

• Search engine are constantly working to scour the web for content organize it, and then display the most relevant results to searchers.
• How a search engine actually works

1. Crawling bots
2. Indexing
3. Ranking
4. Results
   
   
   

HTML :-

           When you look at the page on the site, you see this. But when a search engine looks at the same page in addition to seeing what you see on your screen, it also see the code behind it, called "HTML". Specific parts of this code can help the search engine understand. What the web page is all about and knowing which parts are important can help you to optimize your site.

                             

                                                      First, the title of the page in the code. The search engine sees the title enclosed in a piece of code called a "title tag". Many websites can be edited using tools that handle the  entire HTML coding for you. That's called a "content management system" or "cms".

                                                      Second, you will want to think about is the pages text. Think about who you want to visit your page and what words they are using to describe your product and services.

                                                      Third, pages images search engines won't see the impactful photos in your postures in the same way we do, which is a shame, but what they will see is the code behind it. To help search engine identify the image, give it a descriptive name.

• What search engine look for:-

1. Content
2. Coding
3. Descriptive words
4. Alternative text
5. Optimized visibility