Google’s role as chief gatekeeper to online travel planning difficult to dispute, but does it hold a monopoly on search? While company officials bristle at the suggestion, others aren’t so convinced.

Google is absolutely, unquestionably a monopoly in web search,” says Rand Fishkin, SEO expert and founder of Moz and SparkToro. “They have more than 90% of the market in the United States, and over 95% globally. Only in China, South Korea, and Czech Republic are those numbers lower.”