Links in Seo: What It Means and Why It Matters Explained Clearly
Most SEO advice obsesses over backlink counts, but here’s what many guides miss: Google first uses links to find your pages, then to judge them. That discovery function gets buried in the rush to talk rankings.
Ranking signal importance: Links are one of the top three ranking factors for Google search results. ? Crawlability boost: Google uses links to discover new pages and understand site structure. ? Internal linking impact: Websites with a clear internal linking strategy see 40% more crawled pages. ? Backlink quality: A single high-authority backlink can outweigh dozens of low-quality links.
Quick snapshot
- Google uses links as a ranking signal (Google Search Central Documentation)
- Internal links help search engines understand site structure (Yoast)
- Dofollow editorial backlinks are the most valuable (Moz Beginner’s Guide)
- Exact weight of links vs other factors in the algorithm
- Impact of nofollow links on direct rankings
- How Google treats sponsored links in different contexts
- Backlinks show first ranking signals in 2–6 weeks, noticeable impact in 2–4 months (Serpzilla)
- Substantial, lasting growth typically takes 6–12 months or more (Bulldog Digital Media)
- Focus on structure before volume
- Earn editorial backlinks from relevant, authoritative sites
- Audit links regularly to maintain a healthy profile
The table below summarises the key factors search engines weigh when evaluating links.
| Factor | Impact |
|---|---|
| Ranking impact | Links are one of Google’s top 3 ranking signals. |
| Internal linking benefit | Proper internal linking can increase crawled pages by 40%. |
| Backlink quality | A single high-authority backlink is more effective than 50 low authority links. |
| Anchor text importance | Descriptive anchor text improves relevance signals. |
What are links in SEO?
In SEO, a link—also called a hyperlink—is an HTML element that connects one web page to another. Search engines like Google use links in two fundamental ways: to discover new pages and to evaluate the relevance and authority of pages across the web.
What is a link example?
A link consists of an anchor element with an href attribute pointing to a destination URL. For example, Google’s official documentation on crawlable links demonstrates the standard format. The visible text users click—the anchor text—should describe what awaits on the destination page.
How does a hyperlink work?
Google explicitly states that linking out to external sites can help establish trustworthiness, such as when you cite your sources. Anchor text should be descriptive, reasonably concise, and relevant to both the page the link is on and the page it links to.
Google recommends using the rel=”sponsored” or rel=”nofollow” attribute when links are paid or otherwise compensated, and rel=”ugc” or rel=”nofollow” for user-generated links.
The implication: Links function as both navigation tools and credibility signals, with search engines using them to understand relevance and authority across the web.
Are links good for SEO?
Yes, links are a major ranking signal for Google. High-quality backlinks from authoritative sites significantly improve search rankings. Internal links help distribute page authority and improve site structure. Low-quality or spammy links can harm SEO performance.
The implication: Quality matters more than quantity. A single link from an authoritative site in your niche can outweigh dozens of low-quality links from unrelated sources.
Transmedia Training notes that domain authority scores between 50 and 60 are generally considered good, and above 60 excellent when evaluating potential link targets.
How to use links for SEO?
What is the 80/20 rule for SEO?
The 80/20 rule for link building means dedicating most effort to creating exceptional content that naturally attracts links, while spending the remaining time on targeted outreach. According to Incremys, modern link building strategy should focus on ROI by prioritising quality, relevance, and natural acquisition over volume of backlinks.
How to use internal links effectively
- Use descriptive anchor text that reflects the linked page’s content
- Link from your most authoritative pages to the pages you most want to rank
- Add internal links high up on the page where relevant
- Create a clear internal linking structure where cornerstone content gets more internal links than less important articles
- Update older posts with internal links to newer, related content
Backlinko warns against using large-scale automatic internal linking tools that create many links without contextual relevance, as this can look spammy and hurt user experience.
How to build external backlinks
Bulldog Digital Media recommends creating high-quality, valuable content, leveraging guest posting, and doing personalised outreach as primary tactics to earn backlinks. They also advise monitoring backlink profiles and using Google’s Disavow Tool to disassociate from spammy or harmful links when necessary.
What type of links are best for SEO?
The following table breaks down link types by their SEO value, according to official guidelines and established industry sources.
The pattern: Dofollow editorial backlinks from relevant, authoritative websites are the most valuable, but a natural link profile includes nofollow links too.
| Link type | SEO value | Best use |
|---|---|---|
| Dofollow editorial backlinks | High | From relevant, authoritative sites via natural coverage or guest posts |
| Internal links to pillar pages | High | Structure site architecture, pass authority to key pages |
| Nofollow links | Medium | Can still drive traffic; part of a natural link profile |
| .edu and .gov links | High | Often considered high-quality due to source authority |
| UGC links (rel=”ugc”) | Medium | User-generated content links |
| Sponsored links (rel=”sponsored”) | Low/neutral | Paid links that should not pass ranking value |
Nofollow vs dofollow links
Google cautions against using rel=”nofollow” for every external link, advising that rel=”nofollow” should be reserved for untrusted sources rather than default. According to Google Search Central Documentation, linking to external sites can help establish trustworthiness when citing sources.
Editorial backlinks vs self-made links
Editorial in-content backlinks from strong authority, topically relevant sites are typically among the most effective link types for SEO impact, per Serpzilla. Self-made links, especially from low-quality directories or irrelevant sites, can trigger spam penalties.
The pattern: Earning links through valuable content and genuine relationships beats manufacturing links at scale.
Google warns that keyword stuffing in anchor text is a spam policy violation, advising site owners to avoid cramming every related keyword into anchors.
What are internal links in SEO?
Internal links are hyperlinks that point to other pages on the same domain. They help search engines find, index, and understand pages on your site and allow PageRank to flow between them, which can influence rankings. For help with APA referencing, you can use this APA referencing generator.
Why are internal links important for SEO?
- Help search engines understand site hierarchy and identify important pages
- Improve user navigation and reduce bounce rate
- Distribute existing authority across your site’s architecture
- Guide users through logical paths toward conversion pages
The implication: Internal linking is structural work. Without it, even your best content may remain invisible to search engines.
Internal linking in SEO example
Example: A blog post about SEO basics links to your pillar page on SEO strategy. That link passes authority from the blog post to the pillar page and signals to Google that the pillar page is an important resource on the topic.
Yoast recommends creating a clear internal linking structure where cornerstone content gets more internal links than less important articles, and keeping the number of internal links per page reasonable—typically no more than 4–5 in a 2,000-word informational article.
Step-by-step: Building a link strategy
Three link types make up a complete SEO linking strategy: internal links that structure your site, outbound links that build credibility, and backlinks that earn authority from outside.
- Fix crawlability first. Every page you care about should have at least one internal link from another page on your site. Links must be crawlable HTML elements with resolvable URLs—JavaScript-generated links or those blocked by robots.txt won’t help. Run a site audit to find orphan pages with no incoming internal links.
- Structure internal links around pillar pages. Identify your most authoritative pages and link from them to the pages you most want to rank. Cornerstone content should receive more internal links than regular posts. Spread links evenly across your site to avoid orphan pages.
- Use descriptive, varied anchor text. Anchor text should be descriptive, reasonably concise, and relevant to both the page the link is on and the page it links to. Avoid using the same anchor text for two different pages. Never keyword-stuff anchors—Google treats this as a spam violation.
- Build a natural backlink profile through quality content. Apply the 80/20 rule: spend 80% of effort creating content worth linking to, and 20% on outreach. Guest posting, original research, and genuine relationships with relevant publishers are the foundation. Avoid mass link-building tools or low-quality directories.
- Audit links regularly. Backlinko recommends auditing internal links once or twice a year to identify orphan pages, broken links, and suboptimal anchor text. Monitor your backlink profile for toxic links and use Google’s Disavow Tool when necessary. Small sites should audit every few months; large sites, monthly.
The implication: Structure before volume. Sites that nail internal linking and earn editorial backlinks from relevant sources compound their authority over time.
“Every page you care about should have at least one internal link from another page on your site to help users and crawlers find it.”
“Internal links help users explore more of your content, while external links can improve credibility by pointing to trustworthy sources.”
For website owners and SEO practitioners, the path forward is straightforward: build crawlable site architecture first, structure internal links around your most important content, and focus link-building effort on earning editorial backlinks from relevant, authoritative publishers. The sites that win with links are the ones that treat linking as infrastructure, not tactics.
saynine.ai, backlinko.com, transmedia.co.uk, knowmad.com, spyfu.com, webapex.com.au, relevantbacklinks.com, backlink-tool.org
Frequently asked questions
What is a link example?
A link (hyperlink) is an HTML element that connects one web page to another. An example is Backlink Sites, which uses descriptive anchor text to signal what the reader will find on the destination page.
Do links improve SEO?
Yes. Links are one of Google’s top three ranking signals. High-quality backlinks from authoritative, relevant sites can significantly improve search rankings, while internal links help distribute authority and improve site crawlability.
Is link building still relevant to SEO?
Yes. Link building remains a core SEO practice, though the focus has shifted from quantity to quality. Earning editorial backlinks from relevant, authoritative sites continues to influence rankings and organic visibility.
What is the 80/20 rule for SEO?
The 80/20 rule for link building means dedicating roughly 80% of effort to creating content worth linking to, and 20% to outreach and relationship building. Quality, relevance, and natural acquisition outperform volume-focused strategies.
What is the difference between dofollow and nofollow links?
Dofollow links pass ranking signal (PageRank) from the source page to the destination page. Nofollow links carry a rel=”nofollow” attribute that tells search engines not to follow or pass authority. Google treats nofollow as a hint rather than a directive, so nofollow links can still contribute to a natural link profile.
How many internal links per page is recommended?
SpyFu suggests typically no more than 4–5 internal links on a 2,000-word informational article. The key is relevance—each link should serve the reader and provide context about the destination page.
Are backlinks from social media good for SEO?
Social media links are typically nofollow, meaning they don’t pass PageRank. However, they can drive traffic and increase visibility, which may indirectly support SEO by generating earned links from other sources.
What is a toxic backlink?
A toxic backlink comes from a low-quality, spammy, or irrelevant website and may trigger Google penalties. If you identify harmful links pointing to your site, you can use Google’s Disavow Tool to request that they be ignored.