DuckDuckGo has exploded in popularity since the federal government’s surveillance program came to light two years ago. Remember the privacy-minded search engine’s best week ever?

The service has grown 600 percent since then, DuckDuckGo CEO Gabe Weinberg said on CNBC.

“We’re doing about three billion searches a year,” Weinberg said, “so we’re already pretty mainstream.” (Tell ’em, Gabe.)

Browsers Firefox and Safari also made DuckDuckGo available last year.

Watch the CNBC clip below. The news anchor just can’t resist a little jab about DuckDuckGo’s location choice.

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