It can be deduced by way of building mass outside the chain has become obsolete. 8 outside the chain of sites do not participate in the exchange chain, or link farms.
基于1个网页-相关网页
or link farms
或者链接农场
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Receiving inbound links from paid link farms, link exchanges, or known "bad neighborhoods" on the web.
从付费的链接农场，友情链接，或臭名昭著的“恶性链接”获得导入链接。
youdao
No scraper sites, mirror sites, link farms or free for all link exchanges.
没有刮板站点，镜像站点，链接农场或免费为所有链接交换。
应用推荐
模块上移
模块下移
不移动