·1二级目录(lù )泛(fàn )站(zhàn )主页连接 黑(hēi )帽SEO技(jì )术站群之(zhī )间做连接,底子都(dōu )是单向连接,具体单(dān )向连(lián )接是(shì )不是(shì )查(chá )找引擎会当作采购(gòu )的连接(jiē )而赏罚(fá )尚(shàng )不可知,不(bú )过依据(jù )查找(zhǎo )引擎的一些体(tǐ )现,好(hǎo )像(xiàng )对单向连接有必定的办法很(hěn )明(míng )显(xiǎn )的(de )一(yī )个(gè )比如是检索quot
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