SEO is an acronym for “search engine optimization” or “search engine optimizer.” Deciding to hire an SEO is a big decision that can potentially improve your site and save time, but you can also risk damage to your site and reputation. Make sure to research the potential advantages as well as the damage that an irresponsible SEO can do to your site. Many SEOs and other agencies and consultants provide useful services for website owners, including:

• Review of your site content or structure
• Technical advice on website development: for example, hosting, redirects, error pages, use of JavaScript
• Content development
• Management of online business development campaigns
• Keyword research
• SEO training
• Expertise in specific markets and geographies.

Keep in mind that the Google search results page includes organic search results and often paid advertisement (denoted by the heading “Sponsored Links”) as well. Advertising with Google won’t have any effect on your site’s presence in our search results. Google never accepts money to include or rank sites in our search results, and it costs nothing to appear in our organic search results. Free resources such as Webmaster Tools, the official Webmaster Central blog, and our discussion forum can provide you with a great deal of information about how to optimize your site for organic search. Many of these free sources, as well as information on paid search, can be found on Google Webmaster Central.

Before beginning your search for an SEO, it’s a great idea to become an educated consumer and get familiar with how search engines work.

If you’re thinking about hiring an SEO, the earlier the better. A great time to hire is when you’re considering a site redesign, or planning to launch a new site. That way, you and your SEO can ensure that your site is designed to be search engine-friendly from the bottom up. However, a good SEO can also help improve an existing site.

Some useful questions to ask an SEO include:

• Can you show me examples of your previous work and share some success stories?
• Do you follow the Google Webmaster Guidelines?
• Do you offer any online marketing services or advice to complement your organic search business?
• What kind of results do you expect to see, and in what timeframe? How do you measure your success?
• What’s your experience in my industry?
• What’s your experience in my country/city?
• What’s your experience developing international sites?
• What are your most important SEO techniques?
• How long have you been in business?
• How can I expect to communicate with you? Will you share with me all the changes you make to my site, and provide detailed information about your recommendations and the reasoning behind them?

While SEOs can provide clients with valuable services, some unethical SEOs have given the industry a black eye through their overly aggressive marketing efforts and their attempts to manipulate search engine results in unfair ways. Practices that violate our guidelines may result in a negative adjustment of your site’s presence in Google, or even the removal of your site from our index. Here are some things to consider:

• Be wary of SEO firms and web consultants or agencies that send you email out of the blue.Amazingly, we get these spam emails too:
  

  “Dear google.com,
  I visited your website and noticed that you are not listed in most of the major search engines and directories…”

  Reserve the same skepticism for unsolicited email about search engines as you do for “burn fat at night” diet pills or requests to help transfer funds from deposed dictators.

• No one can guarantee a #1 ranking on Google.Beware of SEOs that claim to guarantee rankings, allege a “special relationship” with Google, or advertise a “priority submit” to Google. There is no priority submit for Google. In fact, the only way to submit a site to Google directly is through our Add URL page or by submitting a Sitemap and you can do this yourself at no cost whatsoever.
• Be careful if a company is secretive or won’t clearly explain what they intend to do.Ask for explanations if something is unclear. If an SEO creates deceptive or misleading content on your behalf, such as doorway pages or “throwaway” domains, your site could be removed entirely from Google’s index. Ultimately, you are responsible for the actions of any companies you hire, so it’s best to be sure you know exactly how they intend to “help” you.
• You should never have to link to an SEO.Avoid SEOs that talk about the power of “free-for-all” links, link popularity schemes, or submitting your site to thousands of search engines. These are typically useless exercises that don’t affect your ranking in the results of the major search engines — at least, not in a way you would likely consider to be positive.
• What are the most common abuses a website owner is likely to encounter?

One common scam is the creation of “shadow” domains that funnel users to a site by using deceptive redirects. These shadow domains often will be owned by the SEO who claims to be working on a client’s behalf. However, if the relationship sours, the SEO may point the domain to a different site, or even to a competitor’s domain. If that happens, the client has paid to develop a competing site owned entirely by the SEO.

Another illicit practice is to place “doorway” pages loaded with keywords on the client’s site somewhere. The SEO promises this will make the page more relevant for more queries. This is inherently false since individual pages are rarely relevant for a wide range of keywords. More insidious, however, is that these doorway pages often contain hidden links to the SEO’s other clients as well. Such doorway pages drain away the link popularity of a site and route it to the SEO and its other clients, which may include sites with unsavory or illegal content.

• What are some other things to look out for?
  • owns shadow domains
  • puts links to their other clients on doorway pages
  • offers to sell keywords in the address bar
  • doesn’t distinguish between actual search results and ads that appear on search results pages
  • guarantees ranking, but only on obscure, long keyword phrases you would get anyway
  • operates with multiple aliases or falsified WHOIS info
  • gets traffic from “fake” search engines, spyware, or scumware
  • has had domains removed from Google’s index or is not itself listed in Google
  • requests your FTP account information or root access to your server