One should be educated in order to select the best positioning service. One should know what to expect, and what the minimum requirements are for successful search engine optimization. Satisfying search engine criteria for higher rankings is only part of the equation. Having a content rich and useful site that visitors would like to come back to could be even more important.
The following variables should be considered to understand the cost:
1. Highly competitive keyword phrases
2. Number of keyphrases optimized
3. The number of pages to be optimized
4. Building new pages or sites
5. Difficult technology can present obstacles
6. Inclusion of pay for inclusion or pay per click
7. Link building efforts
8. Level of continued management
The guarantee given by the SEO firm should be studied carefully. Guarantee to increase the traffic to site and an increase in rankings is fine. But, guarantee to get a top 10 ranking should be considered more carefully. Depending on the keyword phrase itself, one can certainly get two-word phrases ranked high, and even certain single keywords. So, if one goes with that firm, it will have to choose less popular keywords.
Some SEO firms expertise in working for one client in a given industry. For example, they will only work for one printer, one tooling manufacturer, or one bank, etc. One should inquire how the SEO firm handles competing clients.
Ask for a list of references from any SEO considered. Look closely at the list to see if the sites appear to be legitimate and trustworthy. Then, contact those references.