Internet providers in Cortland, IL

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Methodology

HighSpeedInternet.com compares internet providers within cities and metro areas to give customers the most relevant insights into their internet options. When comparing providers, we consider the following:

• Provider coverage areas 
• Advertised speeds 
• Real-world speeds (speed test data) 
• Customer feedback
• Other relevant localized data

We source localized coverage data displayed on our coverage maps from the FCC coverage database, which is updated every six months. For the most current summary of providers in your area, we recommend you use our zip code search tool, which offers the most recent coverage data straight from internet service providers (ISPs).

Our city overviews compare advertised provider speeds. We may also include real-world speed data gathered from millions of annual speed test results. To process our speed test data, we first filter out outliers and providers with low test counts. We then calculate speed averages with every ISP subject to the same parameters.

We gather ISP customer feedback data from our comprehensive annual surveys and direct customer feedback submitted to HighSpeedInternet.com. Unless stated otherwise, average ratings are calculated nationally.