·1二级目录(lù )泛(fàn )站(zhàn )主页连(lián )接 黑帽SEO技术站群之间做(zuò )连接,底子都是单向连(lián )接(jiē ),具体单(dān )向连(lián )接(jiē )是不(bú )是(shì )查找引擎会当(dāng )作采购的连(lián )接(jiē )而赏(shǎng )罚尚不可(kě )知,不(bú )过(guò )依据查找引擎的一些体现(xiàn ),好像(xiàng )对单(dān )向连(lián )接有必定的办法很明(míng )显的一个(gè )比如是(shì )检(jiǎn )索quot
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