Netalyzr for Android is the free (and ad-free) mobile version of the popular network debugging tool Netalyzr. It analyzes a wide range of properties of your Internet connection that you should care about, including blocking of important services, HTTP caching behavior and proxy correctness, your DNS server's resilience to abuse, NAT detection, and (optionally) latency & bandwidth measurements. It reports its findings in a detailed report that highlights any identified problems. You can check out an example report from a real network at in order to get a better idea of our tests.

Netalyzr is not only a debugging tool — it is also the foundation of a comprehensive measurement study compiling a survey of the health of the Internet's edge. Netalyzr is brought to you by a team of researchers at the International Computer Science Institute in Berkeley, California. By running Netalyzr and helping us spread the word you are contributing to the quality of our study — thank you!

Netalyzr requires network-related permissions, location information (whose collection you can disable), and the ability to close other apps (to increase test accuracy; you can disable this feature as well). SDCard access is required to store the results of the tests. We do not have any interest on your personal data but if you enable location information, you will help us to improve the accuracy of the results!

If your device is rooted, we will ask you for permission to use root privileges in order to conduct IP traceroutes from the device. If your handset is not rooted or if you do not grant root privileges to the app, the traceroute test is skipped.

You can find more information on the Netalyzr on its website at, and use our Google+ Community for discussion, questions, suggestions, and feedback:

To become a beta tester to help us to debug and improve our tests, please visit:
From version Netalyzr 1.6:
Version 1.6

This release fixes an error that was freezing test execution.
All versions
February 14, 2018