Generic Top Level Domains (gTLDs)
.aero .biz .cat .com .coop .edu .gov .info .int .jobs .mil .mobi .museum .name .net .org .pro .tel .travel
Regional top-level domains (rTLDs)
Although these domains are associated with a geographical region, they are generally treated as generic top-level domains (much like .com or .org).
Generic Country Code Top Level Domains (gccTLDs)
Google treats some ccTLDs (such as .tv, .me, etc.) as gTLDs, as we’ve found that users and webmasters frequently see these more generic than country-targeted. Here is a list of those ccTLDs (note that this list may change over time).
.ad .as .bz .cc .cd .co .dj .fm .io .la .me .ms .nu .sc .sr .su .tv .tk .ws