Rethink DNS: Fast, private, and safe DNS + Firewall – Firewall apps, monitor network activity, block ads and trackers, block malware, change DNS, bypass Internet censorship, and more.
Rethink DNS + Firewall is the easiest way to monitor app activity, circumvent Internet censorship, block ads and trackers on your Android device.
Prevent apps from connecting to the Internet. A firewall can block any app connecting to the Internet over Wi-Fi or Mobile data. Since most forms of surveillance require the data to be sent over the network to a server, firewalling them effectively mitigates that threat (File Managers, Alarm Clock, Calculator are few such examples of apps that do not require any Internet access to function).
Your Smartphone’s network traffic is tunneled through our app (by the means of a Virtual Private Network). Any outgoing connection from blocked apps are stopped right in its tracks.
Block ads, trackers, malware, and more. Messaging apps, for instance, can’t be firewalled altogether, but can be, instead, blocked from accessing certain server endpoints of known ad-networks and trackers. This is how popular browser-based content blockers like uBlockOrigin work (in addition to doing a host of other things).
Specifically, this is done by firewalling traffic at the DNS layer: By sending empty responses when asked to resolve blocked domain names. For example, domain name of a known tracker, say follows.you.everywhere.com, is never resolved by rethinkdns; resulting in effectively letting other traffic from the app through, but to this particular domain.
Our test runs show that a typical Android device sends upto 60% of the traffic to known trackers and ad-networks.
Circumvent the most common way the Internet is censored. The app encrypts your requests sent to Domain Name System (DNS) resolver run by us with presence in 200+ locations worldwide. DNS resolvers are the address book of the Internet: A DNS server provides the exact addresses you need to visit a website or open an app.
By encrypting the connection to DNS resolvers rethinkdns helps ensure that the results are not manipulated by censors.
Keep tabs on incoming and outgoing Internet traffic. The Rethink DNS + Firewall app keeps a log of connections every app makes and tracks its data use. Automated reports flag previously unknown or suspicious connections, and reveal the extent of surveillance. In our tests, around 60% of the traffic is flagged and reported as being initiated by known spyware. These connectivity logs are made available in near-real time to you for your analysis.