Google updated the no-follow attribute on Tuesday 10th September 2019 regarding which they say it aims to help fight comment spam. The Nofollow attribute has remained unchanged for 15 years, but Google has had to make this change as the web evolves. Google also announced two new link attributes to help website owners and webmasters clearly call out what type for link is being used, rel=”sponsored”: Use the sponsored attribute to identify links on your site that were created as part of advertisements, sponsorships or other compensation agreements.
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The evolution of Google’s rel “no follow”