While registration and availability of IDNs is crucial, acceptance of IDNs determines if they can actually be used. In this section we examine the critical issue of universal acceptance for Internationalised Domain Names. Previous studies have shown that there are some significant barriers to universal acceptance of IDNs. While this year is no different, there are signs that significant progress is being made in two areas: the ability of browsers and web applications to correctly display and use IDNs, and the ability of some closed email services to exchange internationalised email.
These promising developments cannot hide an uncomfortable fact: many of the fundamental systems and applications that make the Internet useful still do not support IDNs. Progress in this area will seem glacial to regular readers of this report. The fact that the progress is so slow is a reflection of both the complexity of the problem and the sporadic uptake of IDNs which is documented elsewhere in this report.