Web directories and search engines are different, but are commonly as being the same thing.The indices on web directories are built by human editors as apposed to the one’s on search engines that are built by crawlers or robots.A few search engines have both computer generated and human generated index and they are called hybrids.Hybrid search engines are those that have both human generated and computer generated index.
The crawlers, spiders or robots that have been designed for search engines are responsible for three things, to first locate web pages, next to go through the content on these web pages and then to report their findings to a database or to the indices of a search engine.The index on search engines is usually updated monthly or bi-monthly.A web searcher is actually searching a search engine’s index when he is trying to locate a website.Search engines that have a better representation of information available online, update their indices more regularly.
Only human editors go through sites that are submitted to the directory.An hierarchical tree structure is used to organized data bases on web directories.Search engines provide individual pages of the websites, while web directories will list the root directory of the homepage or site.A web directory will often tie up with a search engine to provide information ad results that are more comprehensive.
Now, that we are aware of the most common differences, let’s jump into understanding how search engines actually function.Search engines use algorithms to decide, which websites will be displayed first.Variables and some components are assigned certain weights by algorithms.
The text in a title is given a lot of importance by certain web pages.There are three distinct reasons why the title is given so much importance, one, it is displayed prominently on the results page, it is also displayed on the browser menu bar and it is dosplayed when you book mar certain links.Search Blog.
It is the algorithms that play a key role in adding weightage to one site over another.We would need another article altogether to talk about variables and the weights that should be assigned to them.
To be sure that you are being captured by spiders, you need to ensure that the code allows for spiders to come across your websites.Try and have content on your website that is keyword specific and is well written.
MySearchDial browser toolbarDo not search web directories, follow the hierarchical structure to browse through them.Titles and descriptions provided by humans may not be within the source code of a page.In order to add your details into a directory, you have to pay a certain fee.Human editors are paid this fee.Only companies that are credible and have content that is unique and professional will be displayed on certain directories.
Users type in keywords into search boxes when using search engines.This is a really easy and quick way of finding information that you need.While search engine give me technical information, I use web directories for sites that offer similar services.I once needed and office sign.For this I logged on to the Yahoo! directed, checked the appropriate category and found some quotes.