Get it right with a WordPress site and you can hit the kinds of highs usually reserved only for big businesses and their ultra-complex websites. However, as WordPress is a CMS that’s primarily associated with amateur web designers and small businesses, it’s inevitable that certain mistakes will be continually made and hold back the efforts of those involved.
SEO is just as important with WordPress as it is with any other website, so it’s a good idea to take stock of what works and what doesn’t. And when it comes to SEO mistakes, there are some that are so common they really should be looked over by all WordPress site owners, just to check they’re not stunting their own performance. 
Page Name Keywords
The importance of keywords in general is something that’s common knowledge right now, but when it comes to WordPress SEO, it’s just as important to get them into the names of each page too. For example, if you were to use the page title www.worldtechtoday.com/iPhone6, this would gain a great deal more favour than www.worldtechtoday.com/?934628012873. Not only does Google pick up on this, but it also doesn’t look great to your readers.
SEO Plugins for WordPress
There’s a ton of different plugins that can be used with WordPress for the furthering of SEO – the key being to make sure you’re using one but not to get too carried away.
Failing to Use Internal Linking
It’s not only the external links that point back to your site that will earn you favour in the eyes of Google and Co. The search engine’s latest round of algorithm updates have set their sights squarely on quality of content, which includes such things as internal site linking in a manner that connects relevant pieces of work and links from old pieces to new and vice-versa. As such, getting in the habit of linking back and forth within the website can make a big difference.
Not Setting Up Google Authorship
You’ll have probably seen by now that when certain pages and articles pop up, they’re joined by a picture of the writer and a link to their Google+ profile. Once set up, this basically means that anything you write for any site at all will be linked to your profile and this carry the same weight. The more your write and the better your reputation becomes, the more clout your work gets and the better your SEO efforts as a result. If you haven’t already done so, setting up Google Authorship is an absolute must.
Unnecessary Indexation
Last but not least, still on the subject of general site quality comes the small matter of page indexation. Every website online right now has a bunch of pages that are technically of no interest or relevance to anyone carrying out a search. Say for example you show new members to your site a thank-you page when they submit their details, this page has zero value to anyone using a search engine and Google knows it. So rather than run the risk of being deemed to have too many irrelevant pages indexed, do your SEO efforts a favour and don’t index them.