Проверяйте метод блокировки:
https://github.com/ValdikSS/blockcheck

> собранные бинарники

https://github.com/ValdikSS/blockcheck/releases

Обход блокировок:

> for windows

https://github.com/ValdikSS/GoodbyeDPI
бинарник
https://github.com/ValdikSS/GoodbyeDPI/releases
How to use:
Usage: goodbyedpi.exe [OPTION...]
-p block passive DPI
-r replace Host with hoSt
-s remove space between host header and its value
-f [value] set HTTP fragmentation to value
-e [value] set HTTPS fragmentation to value
-a additional space between Method and Request-URI (enables -s, may break sites)

-1 -p -r -s -f 2 -e 2 (most compatible mode, default)
-2 -p -r -s -f 2 -e 40 (better speed yet still compatible)
-3 -p -r -s -e 40 (even better speed)
-4 -p -r -s (best speed)
Try to run goodbyedpi.exe -1 -a first. If you can open blocked websites it means your ISP has DPI which can be circumvented. This is the slowest and prone to break websites mode, but suitable for most DPI.

Try -1 to see if it works too.

Then try goodbyedpi.exe -2. It should be faster for HTTPS sites. Mode -3 speed ups HTTP websites.

Use goodbyedpi.exe -4 if it works for your ISP's DPI. This is the fastest mode but not compatible with every DPI.

> for linux

https://github.com/bol-van/zapret