This file is indexed.

/usr/share/kde4/apps/khtml/domain_info is in kdelibs5-data 4:4.8.2-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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twoLevelTLD=name,ai,au,bd,bh,ck,eg,et,fk,il,in,kh,kr,mk,mt,na,np,nz,pg,pk,qa,sa,sb,sg,sv,ua,ug,uk,uy,vn,za,zw
gTLDs=com,edu,gov,int,mil,net,org,biz,info,name,pro,aero,coop,museum,asia,cat,jobs,mobi,tel,travel