Link Juice: What It Is and How It Passes SEO Value

Link juice is the ranking value or authority that one page passes to another through a hyperlink. The term describes how PageRank and similar signals flow across the web through links, helping the linked page rank better for relevant queries.

For a local service business, link juice explains why a link from a respected local news site helps more than a link from an unrelated directory. It also explains why linking every page from your homepage footer dilutes the value each one receives. Understanding this flow helps you prioritize which pages get links, both from outside sites and from your own internal linking structure.

How does link juice work?

Link juice works by passing a share of a page’s authority through each outbound link, with the amount influenced by the linking page’s own authority, the number of other links on that page, and whether the link is followed.

Google’s original PageRank formula divided a page’s authority among all its outbound links. A page with high authority and few outbound links passes more value per link than a page with low authority and hundreds of links. Google has evolved its ranking systems well beyond the original PageRank formula, but the core idea, that links carry weight and that weight gets distributed, still holds.

Relevance matters as much as authority. A link from a roofing supplier’s blog to a roofing contractor passes more contextual value than a link from an unrelated forum, even if the forum has a higher domain metric.

Why does link juice matter, and what doesn’t it do?

Link juice matters because it’s one of the signals Google uses to judge which pages deserve to rank, but it does not guarantee a ranking boost by itself, and it can’t compensate for thin or irrelevant content.

A page can receive plenty of link juice and still fail to rank if it doesn’t match search intent or lacks the on-page signals Google looks for. Link juice supports rankings; it doesn’t replace the need for a well-optimized page.

Link juice vs domain authority: what’s the difference?

Link juice is the value passed by an individual link, while domain authority is a third-party metric estimating the overall strength of an entire domain based on its backlink profile.

What passes link juice well, and what doesn’t?

Followed links from relevant, authoritative pages pass link juice well, while nofollowed links, links buried in low-quality pages, or links from pages with hundreds of outbound links pass little to none.

• A followed link from a relevant local business directory or industry publication.
• An internal link from a high-traffic blog post to a key service page.
• A link placed in the main content, not the footer or sidebar.

Not every link helps equally, and some are designed not to pass value at all.

• A nofollow link from a comment section or forum signature.
• A link from a page with 300 other outbound links to unrelated sites.
• A reciprocal link exchange with an irrelevant site purely for the link.

How do you check link juice on your site?

You check link juice by reviewing your backlink profile and internal linking structure in tools that estimate page-level authority, then confirming Google can actually crawl and follow those links.

Use Google Search Console to see which pages have the most internal and external links pointing to them, under Links. Third-party tools estimate page-level authority scores, which can act as a rough proxy for accumulated link juice, though these are not Google metrics.

Mistakes and myths about link juice

A common myth is that link juice is a fixed, official Google metric you can measure precisely. It isn’t. It’s a shorthand concept for how authority flows through links, not a number Google publishes or a metric any tool measures exactly the way Google’s systems work internally.

How do you improve link juice flow to important pages?

1. Audit your internal links. List which pages link to your top service or category pages, and how many total outbound links each linking page has.
2. Trim unnecessary outbound links. Remove or consolidate links in footers and sidebars that dilute value without helping users.
3. Link from high-traffic pages to priority pages. Add contextual internal links from your best-performing blog posts to key service pages.
4. Earn followed backlinks from relevant sites. Prioritize outreach to industry publications and local sites over generic directories.
5. Fix broken links and redirect chains. Use redirects correctly so link juice isn’t lost in multiple hops.

For a full internal linking framework, see the guide on building an internal linking strategy and how it distributes authority across a site.

Related terms

PageRank is the original Google algorithm that link juice is based on.

Backlink is a link from another site that can pass link juice to yours.

Domain authority is a third-party metric often confused with link juice.

Nofollow is an attribute that tells Google not to pass link juice through a link.

FAQ

Does link juice still exist as a Google ranking factor?

The original PageRank formula is decades old, but the underlying concept, that links pass value and that value is divided among outbound links, still informs how Google’s systems assess pages today.

Can a nofollow link ever pass link juice?

Google has said it can treat nofollow as a hint rather than a strict directive since 2019, meaning it may occasionally consider these links, but you should not count on nofollow links passing value.

Does internal linking pass link juice too?

Yes, internal links distribute authority across your own site, which is why linking from strong pages to important pages, like key service pages, helps those pages perform better.

How many outbound links dilute link juice too much?

There’s no fixed number, but a page with dozens of unrelated outbound links passes much less value per link than a focused page with a handful of relevant links.