Google is expected to receive court orders as part of the US Federal Trade Commission (FTC) probe into the company’s practices for their Internet search engine business. Both the FTC and the US Senate seem to be stepping up the gas in their anti-trust investigations of the Mountain View, California-based company, which is also evading formal inquiries in Europe.

The FTC is trying to find out if Google deliberately manipulates its search results to direct users to its own affiliate websites and services. A representative from Google did not give any comment regarding the FTC subpoena or the likelihood of a full-blown anti-trust investigation.

Some of Google’s competitors including Microsoft, Travelocity, and Expedia have expressed their concern about the search giant’s practices and have supported a call for a full-scale investigation by US anti-trust authorities.

Google currently handles around 60 percent of all internet searches in the US. Some sectors have accused them of using that dominant standing to irregularly promote its own services such as maps, web shopping, and online travel.

In the past year, however, Google has lost a portion of its market share to Microsoft’s search engine Bing, according to the latest survey conducted by research firm Compete. Bing improved its market share which now stands at 17 percent while Google lost ground to 63 percent down from the previous 73.9 percent.

Even if the newest FTC probe would be the biggest federal inquiry that Google will possibly face, the company is no stranger to investigations by US federal regulators. In fact, over the past years the company has gone through several anti-trust inquiries and many of which involving proposed acquisitions.

For its part, Google’s ability to compromise with bureaucrats in Washington, D.C. have allowed it to evade the rigors that Microsoft had to go through in the 1990s. The Redmond, Washington-based company had a long anti-trust battle with the Department of Justice (DOJ) that almost saw the company split up.

In April, Google went into a settlement after being accused of violating its user privacy policy when it automatically enrolled all Gmail users in Buzz, its own social network service, without getting their users’ permission. Likewise, Google ditched an advertising partnership plan with Yahoo to avoid a potential DOJ anti-trust lawsuit.

Google is already facing multiple anti-trust investigations in various states including New York, California, and Ohio. Abroad, the European Commission had already begun investigations into Google’s possible misuse of its dominance in the search engine market to beat its competitors.

In May this year, Google became the first web entity to surpass 1 billion unique visitors all over the world, according to figures by ComScore. Microsoft followed in second place with 905 million visitors, up by 15 percent from 2010.