Here are the news sites that use up the most data when you load them on your iPhone

Publishers are wringing their hands because Apple made it easier to build ad blockers for the iPhone and iPad. Many are concerned that a lot of people will block ads on their websites, cutting off their main source of revenue.

Proponents of ad blocking point out that some sites have enormous web pages full of ads. Users visiting these web sites can burn through their data plans more quickly than they might expect.

So which sites are the worst? The New York Times did a test of the top 50 news site home pages on the iPhone, and Statista has charted the 10 that use the most data. For comparison’s sake, we also added The New York Times and Business Insider, which are among the more efficient sites measured.

Get THE MID-YEAR SMARTPHONE MARKET REPORT now! A comprehensive look at the global smartphone market from BI Intelligence by platform, vendor, country and more. Insights into the power struggles between the biggest platforms and the underdogs. Get the Report Here »

NOW WATCH: Tech Insider videos

Want to read a more in-depth view on the trends influencing Australian business and the global economy? BI / Research is designed to help executives and industry leaders understand the major challenges and opportunities for industry, technology, strategy and the economy in the future. Sign up for free at research.businessinsider.com.au.