Never mind. It is still there... >> Please have a look at: >> https://www.ncsc.nl/dienstverlening/response-op-dreigingen-en-incidenten/beveiligingsadviezen/NCSC-2013-0597+1.00+Rate+limiting+van+DNS+responses+veroorzaakt+kwetsbaarheid.htm The extension is .html Cheers, Sander