域名折扣 / 优惠券
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域名折扣和优惠券是[[registrar|注册商]]为吸引新客户提供的促销价格。首年折扣可降低50~90%的费用，但此后域名按原价续费，因此查看[[renewal-fee|续费价格]]非常重要。
示例
A .com might be advertised at $0.99 for the first year, but renews at $17.99 — a 1,700% increase that catches many buyers off guard.