·1二级目(mù )录泛(fàn )站(zhàn )主(zhǔ )页连接 黑帽SEO技术站群之间做连(lián )接(jiē ),底(dǐ )子都(dōu )是单向(xiàng )连接(jiē ),具体单向连接是不是(shì )查(chá )找引擎会(huì )当作采购(gòu )的连接而(ér )赏(shǎng )罚尚不可知,不过依据查(chá )找引(yǐn )擎的一些(xiē )体现,好像对单向连接有必(bì )定的办(bàn )法(fǎ )很(hěn )明(míng )显的(de )一(yī )个比如(rú )是(shì )检(jiǎn )索quot
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