1 二级目(mù )录泛站主(zhǔ )页(yè )连接(jiē ) 黑帽SEO技(jì )术(shù )站(zhàn )群之间(jiān )做连接,底子都是单向连(lián )接(jiē ),具(jù )体(tǐ )单(dān )向连接是不是查(chá )找引擎(qíng )会当(dāng )作采购的连接而赏罚尚不(bú )可知(zhī ),不过依(yī )据查找引擎的一些体现,好(hǎo )像对(duì )单向连接有(yǒu )必定(dìng )的办(bàn )法(fǎ )很明显(xiǎn )的(de )一个比(bǐ )如是检(jiǎn )索quot
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