Test your connection fast with Xfinity’s internet speed test tool and get tips on how to improve your internet performance.

Our speed test starts by measuring your connection’s latency. To do this, it sends a small amount of data from your device to the nearest test server and measures how long it takes to receive a response.

Test your Internet upload and download speeds to see how Comcast Business Internet compares to the competition. Get a free quote today for speeds up to 1 Gig.

The Comcast internet speed test is the ultimate tool for checking your internet speed. With the help of this tool, you can measure the downloading, uploading speeds, latency, and jitter of your internet …

Xfinity Internet Speed Test checks how fast is your internet speed. Simply press 'GO' and Speed.is will test download, upload, ping, and jitter speed.

Xfinity speed test tool checks your Xfinity broadband speed. Measure accurate uploading & downloading speeds with the Xfinity internet speed test.

Wondering if you’re really getting the Xfinity internet speeds you’re paying for? Use our Xfinity speed test to measure your download speed, upload speed, and ping (latency) in real time.

Run an Xfinity speed test to see how fast your internet speed is and find ways to improve your overall speed.

Use our speed test to assess the quality of your broadband connection whether you use Xfinity or another provider. The dials above will return results on download speed and upload throughput.