how to check if server was blocked?

i had many of my users complaining one of my server can't be reached, they all from one same country, i've checked and found my server was online, so i suspect my server ip was blocked by that country.

my question is how do i check if my server was blocked by a certain country?

and how to solve this? should i contact datacenter, or the country's internet department?

thanks.

 

 

 

 

Top