除非你的主机是独(dú )立IP的(de ),否则最好(hǎo )不(bú )要泛(fàn )解析有危(wēi )害,如果因为这些二级域(yù )名而降(jiàng )低权重(chóng ),你的(de )网(wǎng )站也(yě )会受(shòu )影响(xiǎng )设置robots并不能消除这(zhè )些二级域名修改DNS是(shì )可行(háng )的 独立(lì )IP主(zhǔ )机(jī )可(kě )以设(shè )置泛解(jiě )析,否(fǒu )则(zé )最好别用(yòng )泛解析
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