·1二级目录泛(fàn )站(zhàn )主页连(lián )接 黑帽SEO技(jì )术(shù )站群之(zhī )间做连(lián )接,底(dǐ )子都是单向连接,具体单(dān )向连(lián )接是不是查(chá )找引(yǐn )擎会(huì )当作(zuò )采(cǎi )购的连接(jiē )而赏(shǎng )罚尚(shàng )不(bú )可知(zhī ),不过依据查找引擎的一些体现(xiàn ),好(hǎo )像对单(dān )向连接有必定(dìng )的办法很明显的一(yī )个比如是(shì )检索quot
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