Anatomy of Crawlers. How Crawlers work?

Performing a search on search engines is our daily life routine. When we search something on Google , yahoo or related search engine sites ...

Performing a search on search engines is our daily life routine. When we search something on Google, yahoo or related search engine sites we don’t know how our keywords directed the search engine to find what we are looking for. Most of the people while doing search don’t know about the anatomy of crawlers that how they work?
The material we find on search engines is actually the crawling results of the specific search engine crawler. The anatomy of the crawler is very simple. They crawl into a website, read permissions through a file which I will discuss in this article and index or store the website in a search engine. If the crawler stores the information it means it has some other related materials in the database and it will compare with other material and put them quality wise.

Recommendation

Why meta tags are important for indexing articles?

How the crawlers work

Crawlers are machines which work on the directions. If they found a site which is not based on the directions it will bounce back and reported as an empty page and if you have some articles on your website no one will get it and no search engine will index it.
Crawlers can index images, text, languages and everything which comes in its way. It has nothing to do with any rank at any platform. It will only store the information from your website to the search engine and search engine will later display it on the basis of keywords someone’s entered for searching something.

Importance of ROBOT.txt file

Robot.txt file is very important for a site. When crawlers enter into a site it will ask for a robot.text file to view the permissions. Some forums have restricted premium zone for special members and they restricted the entrance of crawler into that zone. So if you have no robot.txt file it will most probably index everything in its way.
But if there is no robot.txt file in the site and site is not build for specific customers like personal blog, tech blog and information site so crawler will consider it ok and crawl in your site to find out the materials to be indexed.
Somehow the robot.txt file is important. When the crawler gets what it wants first it will index your material process smoothly.

Does the browser/ operating system/hardware affect the crawlers?

Search engines have introduced very advance crawlers now days. They can crawl on any platform/browser used/ hardware. Search engines have optimized crawlers to work anyway. If you are using an old browser or operating system like windows 98 with IE7, it will not affect the crawler’s anatomy.

Site performance

It is universal if your site performance and layout is good, users and machines will find it attractive. Crawlers have the ability to find out if the site is down for a while or if the site is slow for a moment due to maintenance. It will come back and find out what they want. But if they found the site is closed for a long period of time and or the site performance is very poor they will not come back for indexing. So the site performance and layout should be your preference.

What More!

Never make your website for crawlers. Make it for users. More your users read your content better it will be for site impressions. If your layout is good, icing the cake, go for more optimization. Crawlers have no ability to rate your site. So better keep your site for users.