·1二级目录泛站主页(yè )连接 黑帽(mào )SEO技(jì )术(shù )站(zhàn )群之间做连接(jiē ),底(dǐ )子都(dōu )是单向连(lián )接(jiē ),具体(tǐ )单(dān )向连接是不(bú )是(shì )查找引擎会当作采购(gòu )的连接而赏(shǎng )罚尚(shàng )不可知(zhī ),不(bú )过依(yī )据查(chá )找引(yǐn )擎的一些(xiē )体现,好像对单向连接有必定(dìng )的办(bàn )法很(hěn )明显的一个比如(rú )是(shì )检索quot
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