Subdomains are effectively just like domains though with another dot, for instance in case your domain was plasticsurgery.com, a subdomain could be my.plasticsurgery.com or your.plasticsurgery.com. They can lengthen your website name significantly, and make it harder to remember, but the good thing is with most of the lower-cost hosting services you can have as many as you want!
But do you really need them? Could using endless subdomains beneficially affect the rankings of your main domain? Subdomains really came about to aid large websites organize themselves. If you pay attention to an enormous site, you might find a subdomain prefix. This is because when building a large number of pages, subdirectory names could get too much time or simply start looking very similar that it must be hard to differentiate between the two easily.
You own as numerous subdomains of your own original domain name as you wish, but that doesn’t mean you are able to replicate your primary site across hundreds of subdomains, it will not boost your main site’s ranking or devote the SERPs (Search Engine Results Pages), in fact the major search engines will discover the duplicate content and probably penalize you for the replicated subdomains you have created.
If you intend to build out a massive website, subdomains certainly are a very helpful organizational tool whenever you can plan the dwelling of your own site well. For example you might have: marketing.yourdomain.com, sales.yourdomain.com, customerservice.yourdomain.com, but for almost all ordinary internet marketers this is completely unnecessary.
For a large corporation this delineation of departments could be very useful when numerous employees are adding articles and information to some site – there exists always a possibility that the subdirectory should be utilised by two entirely separate departments and cause a problem. As an example you can have: sales.mydomain.com/how-to-license-your-product and customerservice.yourdomain.com/how-to-license-your-product – two entirely different articles authored by two separate departments.
In case you are starting a website for any rapidly growing company, then then chances are you have previously planned the hierarchy of the domain having a professional company building your website.
The rules of SEO (Search Engine Optimization) still apply equally to domains and subdomains. The search engines will treat each as a separate entity, if your main site features a high PR, it does not always mean that your subdomains will have the identical pagerank, although you can link the main domain to the subdomains manually and the other way round, you simply will not be penalized for that.
Some time ago web developers saw a loophole within the search engine ranking system and they would deceive the major search engines into believing that a web site was much bigger than it genuinely was by using duplicate or only slightly different content and the same keywords within subdomains. The lid was wear that practice in the past for obvious reasons. Many sites were ixlazr top ranking for keywords nevertheless they were without substance to support that ranking.
For those who have a large niche that might be covering many subjects, let’s say motorcycles, and you also wanted to have a separate subdomain for each brand of motorcycle – it may be a good idea to use subdomains for each and every brand, as opposed to purchasing lots of different domains for each type of motorcycle. You will save money and you also won’t need to go through the laborious procedure for choosing a good domain for every category. You may also link internally to relevant information, rendering it a lot easier to get a visitor, and it’s beneficial to you because that visitor is staying on the site.
So the usage of subdomains really boils down to how large you would like your site to become, and just how many topics it can cover.