Hi Michael,
Thank for your feedback. I try with another domain http but still the same. Below the config. The traffic is from inside to outside.
regex speedtest "\.speedtest\.net"
class-map type regex match-any DomainBlockList
match regex speedtest
class-map type inspect http match-all BlockDomainsClass
match request header host regex class DomainBlockList
policy-map type inspect http http_inspection_policy
parameters
protocol-violation action drop-connection
class BlockDomainsClass
reset log
access-list 103 extended permit ip any4 any4
class-map httptraffic
match access-list 103
policy-map inside-policy
class httptraffic
inspect http http_inspection_policy
service-policy inside-policy interface inside
