Welllllllll...... i’ve personally never used .gdn or even seen it more than once so I wouldn’t say its worth much.... however, “zeit” is “Time” in german so there is your market!
Apparently
these guys call the gtld .gdn “.GooDforNothing”, with a ranking of 99.50% of sites being considered “shady”. Haven’t looked into it much, but it was the first thing on google when I searched for “.gdn”
I can say however that I have some names with $10k+ estibot values that I can’t sell for $50.
It's important to realize that the "study" that the quoted value was based on was more than a year old and
more importantly looked at only less than 100 gdn sites (from a total registration count today of about 120,000 gdn domains currently as per nTLD stats)!
If one wants valid data it is always best to go to Spamhaus - they've been in business for almost two decades, are not in the business of selling domains or software products (well beyond their email block list that protects more than 4 billion email boxes in the world), have a dozen and a half researchers, work with all the major law enforcement sites, and look at a much larger sample set (all they can find active - they check every registered domain, typically many tens of thousands per extension).
It is true that at times gdn has made the Spamhaus "worst 10" list, although it is not on it currently. The "badness" of .gdn is certainly worse than .com and most country codes, but substantially better than .biz for example. Here are the Spamhaus scores as of right now (lower is better). I threw in one the worst currently just for reference.
.com 0.95
.net 1.12
.xyz 1.26
.info 2.63
.gdn 3.15
.top 3.52
.biz 4.95
.click 8.67 (near top worst 10)
Want to check out TLD badness yourself? Do so at
https://www.spamhaus.org/statistics/tlds/ (use the TLD check in top left to enter the TLD you want to check - data updated daily).
The real meaning of gdn is of course GlobalDomainName - you
can read about it here.
Re the actual domain name, it will of course be hard to get anything near the Estibot, partly because .gdn are not very well known, there is misinformation about it, and it is not handled by a lot of registrars. On the positive side, the costs to renew are reasonable, and the idea of a global domain name is not a bad idea. You will definitely need to do a selling job, but possibly high $$ to lowish $$$ in my opinion, probably to a European buyer.