·1二级目录泛站(zhàn )主页(yè )连接 黑帽SEO技(jì )术站群之(zhī )间做连接,底子都是单(dān )向连接(jiē ),具体单向连接(jiē )是不(bú )是查(chá )找引擎会(huì )当(dāng )作采(cǎi )购的连接而赏罚尚不可(kě )知,不过依(yī )据查(chá )找引擎的一些(xiē )体现,好像对单向(xiàng )连接有(yǒu )必(bì )定的办法(fǎ )很(hěn )明(míng )显(xiǎn )的(de )一(yī )个比如是检(jiǎn )索(suǒ )quot
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