Block/Allow website for specific IP

RouterOS Beginner Basics
1

I want to Allow a domain example.com for specific IP (192.168.1.6) and
Block the same domain example.com for all other IPs 192.168.1.*

2

Not sure if this will work but create a firewall address list.

add control.domain.com list=AccessToDomain


Assuming you have two things
a. LAN to WAN filter rule for all traffic (forward chain)
b. Drop all else filter ruler for all traffic (forward chain)

/ip firewall filter
add chain=forward action=allow src-address=192.168.1.6/
dst-address-list=AccessToDomain
add chain=forward action=drop src-address=192.168.1.0/24
dst-address-list=AccessToDomain
add chain=forward action=allow in-interface=bridge(or LAN)
out-interface=WAN comment=“Allow LAN to WAN traffic”
add chain=forward action=drop comment=“Drop All Else”