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I have tried every way I can think of to block this redirect and no method is working.

http://ad.directrev.com/RealMedia/ads/adstream_sx.ads/S0003672/115389525392969850@x10?uln=en-us&je=true&ce=true&sr=1536x864&kw=&ref=

http://ad.directrev.*
http://ad.directrev
http://ad.directrev*
http:\/\/ad.directrev.*

Can you please give some suggestions on how to block this link?