通用限制 TLD
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通用限制TLD是遗留[[gtld|gTLD]]的子类别，这些TLD有特定用途意向但并非拥有管理社群组织的正式[[stld|赞助TLD]]。三个经典的通用限制TLD是.biz（商业用途）、.name（个人用途）和.pro（持证专业人士用途）。在实践中，这些限制的执行力度历来很低，通常被当作准开放注册处理，尽管.pro为某些二级域名引入了专业人士验证要求。
示例
.biz was created to relieve pressure on .com for business use, but lax enforcement means anyone can register a .biz domain regardless of whether they operate a business.