|
|
|
|
|
|
by dolbz
5269 days ago
|
|
|
The post you're linking is discussing the META tag version of nofollow, not the hyperlink rel attribute which is detailed here: http://googleblog.blogspot.com/2005/01/preventing-comment-sp... This article doesn't say explicitly that it won't follow those links and I would suggest it often will as comments are a rich source of pages to index. The nofollow on a link like this just indicates that the page owner can't vouch for the quality of the linked page (e.g. user submitted link) and therefore doesn't want to pass pagerank to it. Edit: it's also implied in the parent's link that the META tag only prevents the following of links to pages within your site. This sounds reasonable as who are you to tell Google they can't index a third party domain? |
|
|
No tweets link to third-party domains, since Twitter wraps all links in their own URL shortener (t.co). Even if you use an independent URL shortener, it will be wrapped by t.co.
(I suppose you could argue that there is no way for Google to determine this algorithmically, since "twitter.com" != "t.co", so it should go ahead with the crawl, but there's the question of how Twitter would respond to that.)