Google will now index Facebook, Disqus and other third-party comments posted on blogs and websites. The comments will be searchable and affect the SEO of the site just like the regular content of the page.
Labnol.org announced that Googlebots, the spiders that crawl and read web pages, will now read and index the comments on websites. The comments will then ranked in Google's SERPs system, affecting systems and rankings of the web page. This means the comments, just like the web content, will be searchable on Google. Queries including commenter name * commenter title will show all the comments the commenter may have written on different websites that use the Facebook or Disqus comments platform, Labnol.org announced.
Matt Cutts, head of Google's Webspam team, confirmed on Twitter that Google can now execute AJAX/JS to index some dynamic comments.
While these changes should help blogs and websites that receive well-thought out comments, this may mean bloggers and website moderators should be more cautious about the types of comments that are posted and what people are saying in their comments. The comments are now considered part of the text content, so foul language or comments in violation of Google's Webmaster Guidelines may want to be avoided.
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