Google官方在2020年底更新了『付費連結』指南文章，全文針對Paid Links這項議題提供直接性的解釋：買連結違規！

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Can you talk about the webspam team's criteria for whether something is a "paid link"?
Matt Cutts, Mountain View

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Webmaster Central: http://www.google.com/webmasters/

What is a "paid link"?

Google 搜尋中心針對『付費連結』2021的最新說明

最近的SEO主題似乎又掀起不少討論，在這枯燥乏味的行銷話題中，Brain同樣甚感欣慰。以下藉由幾則陸續收到的讀者問題進一步說明正規SEO專業知識，歡迎各位先進賜鞭大力指教！
讀者發問：
震驚所以不能花錢請相關領域優質部落客寫手作推薦，貴到天價的新聞媒體配合原來是屬於低級的黑帽？誠心尋求高手解惑🙏


「購買連結」竟是低級的黑帽SEO操作？！

『付費連結』就是購買、販售可以傳遞排名訊號（PageRank）的連結，這觸犯了Google規章的第一條——連結配置

Matt Cutts and Sandy explain what it means if your site has a manual action labeled as "Unnatural links from your site" and what you can do to fix it.

Unnatural links from your site:
https://support.google.com/webmasters/answer/2604774

Find more webmaster resources at http://www.google.com/webmasters/

BrainLin

Google 搜尋中心針對『付費連結』2021的最新說明

「購買連結」竟是低級的黑帽SEO操作？！

如果 SEO 是線上遊戲，Google 痛恨 ”台幣戰士”：論『付費連結』的違規操作