The E.U. Competition Commission is eyeing another investigation of Google's alleged anti-competitive hold on web search, and it might not be alone in its convictions against Google's search dominance.

In a new report from The Wall Street Journal, the U.S. Federal Trade Commission reportedly looked into Google's anti-competitive hold on search in 2012.

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The investigation follows several complaints from Google's rivals that claimed the search engine pushed its own services above competitors like Yelp and TripAdvisor.

After 19 months of investigation, Google came to an agreement with the FTC to change the way it displays search results, removing some of the conflicting issues the FTC brought up in its various reports.

"After an exhaustive 19-month review, covering nine million pages of documents and many hours of testimony, the FTC staff and all five FTC Commissioners agreed that there was no need to take action on how we rank and display search results," said Google General Kent Walker. "Speculation about potential consumer and competitor harm turned out to be entirely wrong."

It's not the first time Google has actively fought against investigation, claiming it does not tailor results against competitors. Alongside fighting for its search engine, Google has also faced investigation on its news service that's been removed in Spain.

In Russia, the search giant is facing an anti-monopoly investigation filed by a search competitor Yandex. The complaint claims Google pre-loads its own search engine onto Android, which is a violation of the anti-monopoly rules.

Google seems to be disliked by a lot of regulatory authorities that see the search giant's ventures into other services as a way for it to expand its monopoly to even more markets.

TagsFTC, European Union, anti-competitive, anti-monopoly, Search engine