A licence badge should appear in the footer, and you can usually click it to view the certificate.
https://www.ww2.site/forum/viewtopic.php?t=67567
https://talkingpoints.org/subx/showthread.php?tid=81578
http://horsecity.ru/phpBB3/viewtopic.php?f=25&t=282932
http://mirosovak.edoras.cz/viewtopic.php?f=3&t=352561
http://horsecity.ru/phpBB3/viewtopic.php?f=35&t=488144
http://www.prepody.ru/topic96978.html
http://forum.ruchkontroliwyborow.pl/index.php?topic=36562.new#new
http://47.88.101.141/forum.php?mod=viewthread&tid=264875&extra=
http://gwenael.free.fr/diss3/viewtopic.php?f=8&t=42362
http://forum3.bandingklub.cz/viewtopic.php?f=46&t=1626229
https://forum.pcfoster.pl/topic/141877-inloggen-holland-casino-online-en-meest-betrouwbare-online-casino/?p=337511
http://forum.spolokmedikovke.sk/viewtopic.php?f=25&t=1098598
http://52she.top/forum.php?mod=viewthread&tid=194636&extra=
https://debate.socialism.nl/forum/showthread.php?tid=201744