diff --git a/DutchFilter/sections/adservers_firstparty.txt b/DutchFilter/sections/adservers_firstparty.txt
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+++ b/DutchFilter/sections/adservers_firstparty.txt
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+!
+! Section contains the list of advertising networks, which are hosted on non advertising sites as subdomains
+!
\ No newline at end of file