There are a lot of prying eyes who would like to get a peek at your browsing history and data. A new interactive tool called Internet Exchange Mapping (IXmaps) came online this week and shows users if their web traffic passes through an interception point run by the United States’ National Security Agency (NSA).

Created by a team of faculty and students at the University of Toronto, IXmaps displays known paths that data travels when passing through internet exchanges—physical locations that act as hubs for internet service providers and content delivery networks to hand off traffic between networks.

IXmaps also highlights the exchanges where the NSA has installed listening posts that allow the spying organization to intercept the data passing through the transfer point.

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IXmaps makes use of several primary sources to build out its maps. First is OpenMedia, an activist group dedicated to keeping the internet open and free of surveillance. The service also uses information from the Canadian Internet Registration Authority and the Office of the Privacy Commissioner of Canada.

To pinpoint the location of NSA listening posts, the mapmakers turned to documents released by former NSA contractor and whistleblower Edward Snowden.

The map highlights of a number of potentially concerning areas for internet users, including the odd and looping paths that data often travels. For a Canadian user, it might come as a surprise to see just how much of their browsing activity passes through the U.S., and is therefore exposed to NSA spies.

This presents a concern for any internet user not based in the U.S., as his or her online activity is likely getting swept up by a foreign government. Once data hits U.S. servers, the NSA doesn’t discriminate based on its origin—it collects everything.

Read: Congress Votes to Kill Consumer Privacy Rules That Kept ISPs From Collecting, Selling Data

Before assuming the worst, it’s worth noting there are reasonable explanations for why data can travel occasionally unseemly paths instead of taking the route of least resistance. Primary among them is cost; while there may be shorter paths available, if ISPs don’t have an agreement to exchange data then the information may get bounced to another partnered network.

Given the decision by the U.S. Senate and House of Representatives decision to repeal protections that prevent ISPs from collecting and selling sensitive user information including browsing history, IXmaps is a friendly reminder that it’s not just faceless corporations that are interested in your data—it’s faceless government agencies as well.