So, you’ve been using VPN to browse banned sites that have been blocked by your ISP, college, or workplace. Some users may also worry that their ISPs or network administrators may monitor their online activity. We use VPNs for all of these purposes including browsing blocked sites, however regrettably some VPNs are more harmful than helpful. Your data is sold on the black market. Good VPNs are typically pricey.
So, I use this simple and easy method to bypass all the ISPs rules and stay secure while browsing the internet. It’s called re-routing DNS. You need to change your DNS so that all the website you request to browse goes to an external DNS.
In your android smartphone, go to Settings.
Then WiFi and Network
Then click on Private DNS
Choose Private DNS provider hostname and enter dns.google and tap save.

In your iOS device,
Go to Settings
Then Wi-Fi and click on (i) button on the site of your network connection.
Then click on configure DNS
then click on manual
then add server and type 8.8.8.8 and 8.8.4.4
and click on save

You’re done
After doing that you are good to browsing blocked and banned sites and you can surf the internet with peace.