除非你的主机是(shì )独立IP的(de ),否(fǒu )则最好不(bú )要泛(fàn )解(jiě )析有危害(hài ),如果因为(wéi )这(zhè )些二级域(yù )名而(ér )降低权(quán )重,你(nǐ )的网站(zhàn )也会受影(yǐng )响(xiǎng )设置(zhì )robots并(bìng )不能消除这些二级域名修改(gǎi )DNS是可行的 独立(lì )IP主机可以(yǐ )设(shè )置泛解析(xī ),否则(zé )最好(hǎo )别用(yòng )泛解析
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