How Search Engines And SEO Work Together

Nowadays,​ research and information seeking is​ commonly done over the​ Internet. if​ you​ wish to​ know about something,​ all you​ have to​ do is​ type in​ the​ keywords on​ the​ search bar,​ click the​ button next to​ it,​ and then a​ list of​ relevant sites that have information connected to​ your search appears on​ your screen.

Sites that help you​ do the​ ‘searching’ are called search engines. Major search engines today include Google,​ Yahoo!,​ Live Search by Microsoft (formerly MSN),​ Askcom (formerly AskJeeves),​ and AOL.

How do these sites search up the​ web for the​ information you​ need? the​ process is​ technical but could be explained in​ simple words – crawling,​ indexing,​ processing,​ calculating relevancy,​ and retrieving.

First of​ all,​ search engines search or​ ‘crawl’ the​ web to​ see what kind of​ information is​ available. Crawling is​ performed by the​ software called crawler or​ spider. the​ crawler follows links from page to​ page and then they index whatever information they come across. if​ a​ site or​ link is​ crawled and found to​ be relevant,​ it​ is​ then marked or​ ‘indexed’ by the​ crawler and then stored into a​ giant database so it​ can be retrieved later. Indexing involves identifying words and expressions that best describe the​ page and then assigning it​ to​ particular keywords.

When a​ web surfer performs a​ search,​ the​ request for information is​ then processed. Processing is​ the​ comparison of​ strings in​ the​ search request with the​ indexed pages in​ the​ database. For example,​ if​ you​ type in​ the​ word ‘Internet’ on​ the​ search bar,​ the​ search engine scans through its database for indexed pages that contain the​ word ‘Internet’.

Since it​ is​ most likely that many pages would contain the​ word ‘Internet’,​ the​ engine would then calculate the​ relevance of​ the​ pages in​ its index to​ the​ search string or​ the​ word. After the​ search has been processed,​ results will now be retrieved by displaying them in​ the​ browser or​ the​ hundreds of​ pages that appear on​ your screen that contains lists of​ relevant sites you​ could visit.

There may be times when you​ do a​ search over the​ Internet and the​ results you​ get are not that relevant or​ the​ relevant sites are on​ the​ bottom part of​ the​ list. This is​ because sometimes there are websites that contain useful information but are not ‘search engine friendly’. Meaning,​ the​ site’s design or​ pattern is​ not that easily recognizable by search engines. Cases like this could be frustrating to​ both the​ information seeker and the​ website owner.

This is​ where SEO comes in. Search engine optimization is​ about making websites more accessible to​ search engines to​ better display results and accurately rank them in​ terms of​ relevance to​ a​ search topic. What SEO does is​ that is​ tailors a​ website’s design or​ structure to​ the​ pattern that could be easily indexed and processed by search engines. This could be done by improving the​ site content,​ selecting a​ proper domain name,​ putting keywords,​ text formatting,​ internal linking,​ etc.

Search engines are always seeking ways on​ improving their technology to​ be able to​ crawl the​ web deeply and provide relevant results to​ users. Websites undergoing SEO help not only the​ users but search engines as​ well by making information seeking and providing easier for everyone.

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