PageRank
PageRank is Google's original algorithm for measuring a page's importance based on the links pointing to it. It treats each link as a vote and weighs votes by the importance of the linking page.
PageRank is the algorithm that put Google on the map. Developed by Google's founders in the late 1990s, it was a method for ranking web pages by importance, and its core idea was elegant: a link from one page to another is a vote, and a page with more and better votes is more important. The name is a play on words, referring both to ranking web pages and to Larry Page, one of Google's co-founders. Whatever the wordplay, the concept reshaped search, and understanding it helps you understand why links matter so much in SEO to this day.
PageRank's breakthrough idea: links are votes, and a vote from an important page counts for more than a vote from an unimportant one.
How PageRank works, in plain terms
- Each link from page A to page B passes a share of page A's importance to page B.
- A page that receives many links, especially from important pages, accumulates more PageRank.
- The more links a page sends out, the less importance each individual link passes, since the value is divided.
- Importance is recursive: a page is important if important pages vote for it, which themselves are important because important pages voted for them.
targetThe original analogy
Picture a citation in academic research. A paper that gets cited often is probably significant, and a citation from a landmark study means more than a citation from an unknown one. PageRank applied that scholarly logic to the web. Links became citations, and Google measured importance by who was citing whom. It was a simple idea executed brilliantly, and it is why a single link from an authoritative site can outweigh dozens of weak ones.
Here is where people get confused. Google stopped showing a public PageRank score, the little green bar SEOs used to obsess over, more than a decade ago. Many took that to mean PageRank was dead. It is not. Google retired the public-facing number, but the underlying principle, that links pass importance and that link-based authority shapes rankings, remains foundational to how search works. The reason link building still works is that the logic PageRank introduced is still doing its quiet work under the hood.
The score is gone, the principle is not
Do not mistake the death of the public PageRank toolbar for the death of PageRank. The algorithm evolved and went private, but link-based authority is still core to ranking.
Modern SEO rarely says "PageRank" in daily conversation. Instead you will hear about link equity or link juice, which are the practical, everyday way of describing the same thing: the ranking value that flows through links. When an SEO talks about a strong page passing equity to a weaker one through an internal link, they are describing PageRank's flow in plainer language. The vocabulary changed, the mechanism did not, and knowing the original concept helps you cut through the slang and understand what is really happening when one page lends its strength to another.
Example
When a major publication links to your article, your page gains a share of that publication's accumulated importance, and that flow makes your page more likely to rank. That is PageRank in action, even though you will never see a score for it. Today's ranking system layers in content quality, intent, user signals, and heavy machine learning on top, but the original link-based skeleton is still in there.
lightbulbPRO TIP
You cannot see a PageRank score anymore, so stop hunting for one. Focus instead on the things that build link-based authority: earning quality backlinks and distributing that authority across your own site with deliberate internal links. That is how you put PageRank's principle to work today.
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