Backlinks assist Google in discovering new pages by providing a path that links one page to another.
Google crawlers traverse the internet by following links. When a page has a backlink to another page, it creates a path that can be followed by the crawlers.
Crawling Through Links
The crawlers that Google uses are automated.
These crawlers start with pages that are already known by Google and then move through the links found on those pages. Each backlink serves as a path that leads to another URL.
The crawlers move from one page to another through these links, continuing as long as they find backlinks on each page.
Without backlinks, this process is not possible, as there would be no paths to follow.
The Role of Backlinks as a Discovery Path
Connecting Isolated Pages
A page that is not linked from any source is difficult for crawlers to find. It exists outside the structure of the web.
When a backlink is added to such a page, it becomes part of the network. It is now accessible because the crawler can reach it by following a link from another page.
A page that was previously not accessible becomes part of the structure of the web.
From Discovery to Indexing
Once a page is discovered through a backlink, it can be processed for indexing.
The first step is discovery, where the crawler becomes aware of the page’s existence. The content is then analyzed for possible inclusion in search results.
Backlinks do not guarantee indexing, but they enable discovery, which is required before indexing can occur, and is an essential part of how backlinks work in search engines.
Without discovery, indexing cannot take place.
Multiple Paths Increase Crawl Efficiency
A page that is linked from multiple sources is easier for crawlers to find, as if a crawler does not reach the page through one path, it may find it through another. This creates redundancy within the structure of the web, where pages connected through multiple paths are more likely to be discovered.
This network of paths helps ensure that pages remain accessible.
Where Discovery Is Often Misunderstood
Discovery is sometimes assumed to happen automatically for all pages.
In reality, crawlers find pages through a network of links.
Another misunderstanding is that links are optional for discovery. While there are other methods, backlinks remain one of the primary ways crawlers move between pages.
They determine how accessible a page is within the network.
