Similar to 北海道ファンマガジン

.pg

Ping (blogging)

.pk

.pm

.pn

.pr

.pro

Proton VPN

.ps

Puma (web server)

Quoted-printable

Qwant

.re

Riseup

.ro

.ru

RuTracker.org

.rw

.sa

.sb

.sc

.sd

.se

Session Description Protocol