1 二级目录泛(fàn )站(zhàn )主页连接 黑(hēi )帽SEO技术站群(qún )之间做连接,底子都是单向(xiàng )连(lián )接,具体单(dān )向(xiàng )连接是不(bú )是查(chá )找引擎会当作(zuò )采(cǎi )购(gòu )的连接(jiē )而赏罚(fá )尚(shàng )不(bú )可(kě )知,不过依据查找引擎(qíng )的一(yī )些(xiē )体现,好(hǎo )像(xiàng )对单向连接有必(bì )定的办(bàn )法很明显(xiǎn )的(de )一个比如是(shì )检(jiǎn )索quot
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