1 二级目录泛(fàn )站主(zhǔ )页连(lián )接(jiē ) 黑帽SEO技术(shù )站群之间(jiān )做(zuò )连接,底子都是单向(xiàng )连接,具(jù )体单向连(lián )接是不是(shì )查(chá )找(zhǎo )引擎(qíng )会(huì )当作采(cǎi )购的连接而(ér )赏罚尚不可知,不过(guò )依据查(chá )找引擎的(de )一(yī )些体(tǐ )现(xiàn ),好像(xiàng )对单(dān )向连接(jiē )有必(bì )定的办(bàn )法很明显的一个比(bǐ )如是检(jiǎn )索quot
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