Use Of Flash In Navigation And For Textual Content.
Search engines cannot read textual content embedded in flash, this also means navigation, and whilst it is true that google now has a simple ability regarding flash which means it can read some links embedded in flv files, the days where you can safely use this method for textual content and navigation purposes without SEO suffering are a long way off. As a general rule, only use flash for image showcasing, and avoid putting text in the movie unless it is content that you can afford to be overlooked when search engines are spidering your website.
Javascript Navigation.
Simular to flash navigation with regards to SEO is Javascipt based navigation, this type of script seems to be very common with certain development companies responsible for making allegedly “SEO Friendly” ecommerce content management systems, ofcourse nothing could really be farther from the truth. By rendering your sites main product category navigation in this format, you are not only wasting a gigantic possibilty to get some great and product relevant keyword density, but you are also hiding the internal links to all categories linked in this navigation along with it, the chances are that without a sitemap these pages will not even be found and indexed.
Canonical Urls.
Canonicalization is a technical term used by professional SEO Services providers to describe content that is displayed on more than one url on a single domain. This usually occurs through two main causations, although there can be other causes. The first and probably the most common is where incorrect server configuration means that the non-www. version of each page is not redirected via htaccess (apache) to the www. version. This results in two duplicate pages being available and therefore duplicate content problems. The second and also pretty conventional way that this problem occurs is when poorly coded content management systems allow the same content to be displayed on more than one url.
Not redirecting Existing Pages And Changing url’s Without Good Cause.
Many of the jobs that your average web designer gets are not to create website for a brand new domain, but rather to either modernise or to entirely replace an exisitng website, when this occurs consider the fact that the clients existing pages will already have inbound links pointing to them, therefore if you change the urls and neglect to redirect the existing page to the new version, then you will essentially be undoing the SEO work of your client or their SEO Services provider, and damaging that pages rankings in a big way. Infact unless there is a very good reason for changing the url, ie making it search engine freindly, then I would recommend you do not change the universal resource locator at all.
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Tags: SEO Services