Certainly! In SEO (Search Engine Optimization), "nofollow" and "dofollow" are link attributes that signal to search engine crawlers how to treat hyperlinks on a webpage.
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Dofollow Links:
- Dofollow links are standard hyperlinks that allow search engine crawlers to follow them and pass link equity or "link juice" from one webpage to another.
- When a website links to another with a dofollow attribute, it essentially endorses that link, contributing to the linked page's authority and search engine rankings.
- These links are a natural part of web content and are used for editorial purposes, citations, references, and endorsements.
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Nofollow Links:
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Nofollow links contain an attribute (
"rel=nofollow"
) that instructs search engines not to follow or pass link equity from the linking page to the linked page. - They were initially introduced as a way to combat spam and prevent the manipulation of search engine rankings through excessive link building or sponsored content.
- Nofollow links are commonly used in user-generated content like blog comments, forums, and social media, as well as for sponsored or paid links to indicate to search engines that the linked content hasn't been editorially endorsed.
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Nofollow links contain an attribute (
- Link Equity: Dofollow links pass link equity, influencing the linked page's authority and search rankings, while nofollow links do not pass link equity.
- Crawling Behavior: Search engine crawlers follow dofollow links to discover new pages, whereas they do not follow nofollow links.
- Usage: Dofollow links are natural and editorially endorsed, while nofollow links are often used in user-generated content, advertisements, and links that shouldn't influence search rankings.
For SEO purposes, having a healthy mix of both dofollow and nofollow links is beneficial. Dofollow links contribute to improving a website's authority, while nofollow links can still drive traffic, visibility, and user engagement, even though they don't directly impact search engine rankings.