·1二级目录(lù )泛站(zhàn )主页连(lián )接 黑帽SEO技术站群(qún )之间(jiān )做连接(jiē ),底(dǐ )子都(dōu )是单向(xiàng )连接,具体(tǐ )单(dān )向连接是(shì )不是查(chá )找引擎会(huì )当作采(cǎi )购的连接(jiē )而赏罚(fá )尚(shàng )不可知,不过依据查找引(yǐn )擎(qíng )的一(yī )些体现,好像(xiàng )对(duì )单向连接有必定(dìng )的办法很(hěn )明显的一(yī )个(gè )比(bǐ )如是检(jiǎn )索quot
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