There are several common mistakes that people tend to make frequently with regard to search engine optimization. Below is a list of the most common ones, which if avoided, can help you gain better results and profitability in the long run.

1) Targeting & Optimizing the Wrong Keywords

The basic step for initiating SEO is choosing the keywords that are relevant to your site and optimizing them. However, if you end up selecting the wrong keywords, all the time and effort dedicated in achieving a top ranking will be wasted. Choosing the right keywords can make or break your SEO campaign. Even if you are very resourceful, you can't think on your own of all the great keywords but a good SEO Provider Company will help you to get keywords that are good for your site.

2) Ignoring Basic Search Engine Guidelines

This is one of the biggest mistakes a SEO beginner could make. SEO is a set of actions meant to improve search engine rankings, so the most important thing would obviously be to first check out the targeted search engines’ quality and submission guidelines. You can check the Basic Search Engine Guidelines from “Google SEO & Quality Guidelines” and “Yahoo SEO Guidelines”. Any further SEO actions you take should abide by the above guidelines.

3) Ignoring the Title Tags

Leaving the title tag empty is also very common. This is one of the most important places to have a keyword, because not only does it help you in optimization but the text in your title tag shows in the search results as your page title. Use appropriate keywords inside these tags. The search engine bots give special attention to these headings and continue to “read” your content based on the information found inside them. It builds up relevancy.

4) Using JavaScript or Flash on Your Site

Using JavaScript for navigation is not bad as long as you understand that search engines do not read JavaScript and build your web pages accordingly. So if you have JavaScript menus you can't do without, you should consider build a sitemap so that all your links will be crawlable. Same, if you’re using Flash on your website, make sure that it is an html version. Search engine spiders can’t read Flash content, so it’s not the best method for optimizing content.

5) Don’t spread your content over several domains

There are times when sub-domains or an additional domain might make sense, but those occasions should be dominated by user and content considerations, not an attempt to get multiple domains/sites listed in the SERPs. Know the pros and cons of using sub-domains and additional domains.

6) Using submission tools that are automated

Most often to save time, a lot of people use automated submission software or tools that can quickly submit sites to the search engines. However, it is important to understand that using such tools are not in the best interest of search engines and can lead to your webpages being penalized. Thus, it is better to either hire professionals who can do this for you and if budget is a constraint you can do it yourself as it would be worth your time and effort.

7) SEO is not One Time Process

Don’t make the mistake of resting at peace once you’ve finished optimizing a page or website. Please check the results of your website from time to time and adjust your keyword strategy if necessary. Search engines change their algorithms at any time, so we can recommend you to work on SEO for long time. You have to work on also because definitely you are not the only person for targeting those keywords. Means, competitions are high and if you fail to send the updates to search engines then, they will gradually decrease your keyword ranks. So I recommend to work on website optimization continuously.