Straightforwardly domains of this type are mainly used in online-gambling. And at the beginning, we make clear that except for official lotteries as the China Sports Lottery and the China Welfare Lottery, and legal gambling in HK and MO, all other forms of gambling are illegal in China. (1) Pure Numeric Domains The shorter the better - but for domains of this type even it’s a 8-number domain, still worths a lot of money as long as it’s got a good pattern in numbers like 26888888.com. For domains of this type, the number 8 is better than 9, and 9 is better than 6 (8 stands for fortune, 9 for permanence, 6 for luck) (2) Pure Alphabetical Domains Pay attention to the following keywords: HG - initials of HuangGuang(CN Pinyin), means Crown(EN). Crown Resorts Limited is one of Australia’s largest gaming and entertainment groups. YH - initials of YinHe(CN Pinyin), means Galaxy(EN). Galaxy Entertainment Group owns & operates hotels & casinos in MO through its subsidiary, Galaxy Casino S.A. YH(another explanation) - initials of YingHuang(CN Pinyin), means Emperor(EN). Emperor Entertainment Hotel Limited concentrates on hotel & gaming businesses. JS - initials of JinSha(CN Piniyn), means Golden Sands(EN), refers to The Sands Hotel and Casino. PJ - initials of PuJing(CN Pinyin), refers to Casino Lisboa in MO BLR - initials of BaLiRen(CN Pinyin), means Parisian, refers to The Parisian MO. TYC - initials of TaiYangCheng(CN Pinyin), means Sun City, refers to Sun City Gaming Promotion Co. VNS - refers to the Venetian Resort Hotel Casino BC - initials of BoCai(CN Pinyin), means Lottery(EN). CP - initials of CaiPiao(CN Pinyin), also means Lottery(EN). QP - initials of QiPai(CN Pinyin), means Card Games(EN). YLC - initials of YuLeCheng(CN Pinyin), means Entertainment City(EN). SSC - initials of ShiShiCai(CN Pinyin), a particular kind of China Welfare Lottery. Still many others - XHG, XYH, XPJ, VIP, BET, WIN, SUN etc. Get to know the meanings if interested. Domains like: HGCP.com - Huang Guang Cai Piao - Crown Lottery Or in full Pinyin Yinheyule.com - Galaxy Entertainment (3) Domains composed of letters & numbers, combinations like hg235.com, yh56999.com, etc. Regarding numbers in this type of domains, they prefer: 1. the number 8, 9, 6 as mentioned above 2. 365 and 500, two numbers frequently used in domains of this type 3. exact reduplication, like 888, 999, 666 etc 4. ascending order, best like 567. If not, patterns like 257, 369, 589 are also considered acceptable. Respect the law, no to illegal gambling. This thread simply help understand why these domain names were sold at such high prices and how to recognize domains of such type.