·1二级目录泛站主(zhǔ )页连接 黑(hēi )帽SEO技(jì )术站群(qún )之间做连接(jiē ),底(dǐ )子都(dōu )是单向连接,具(jù )体(tǐ )单向连接(jiē )是(shì )不(bú )是(shì )查找引擎会当作采购的连接(jiē )而(ér )赏罚尚(shàng )不可知(zhī ),不过(guò )依据查找(zhǎo )引擎的(de )一些(xiē )体现,好(hǎo )像对单(dān )向连(lián )接(jiē )有必定(dìng )的(de )办法很明显的(de )一(yī )个比如是(shì )检索quot
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