·1二级目(mù )录泛(fàn )站(zhàn )主(zhǔ )页连接 黑帽SEO技术(shù )站群(qún )之间做连接,底子(zǐ )都(dōu )是(shì )单(dān )向(xiàng )连接,具(jù )体单向连接是(shì )不是(shì )查找(zhǎo )引擎会当作采(cǎi )购的连接而赏(shǎng )罚尚(shàng )不(bú )可知(zhī ),不过依(yī )据查找引擎的一些体现(xiàn ),好像对单(dān )向连接(jiē )有必定(dìng )的(de )办法很(hěn )明显的(de )一(yī )个比如(rú )是检索quot
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