diff --git a/TrackParamFilter/sections/specific.txt b/TrackParamFilter/sections/specific.txt
index aea4801b852..540bdab71ad 100644
--- a/TrackParamFilter/sections/specific.txt
+++ b/TrackParamFilter/sections/specific.txt
@@ -399,6 +399,10 @@ $removeparam=s-id,domain=item.rakuten.co.jp|www.rakuten.co.jp
 ||duckduckgo.com^$removeparam=perf_id
 ||duckduckgo.com^$removeparam=parent_perf_id
 !
+! A/B testing
+||duckduckgo.com^$removeparam=atb
+||duckduckgo.com^$removeparam=/^experiment_/
+!
 ! https://github.com/AdguardTeam/AdguardFilters/issues/208058
 ||olybet.lv^$removeparam=ref
 ! https://github.com/AdguardTeam/AdguardFilters/issues/207414#issuecomment-2969009233