Internal Linking: A Practical SEO Guide

Almost every website has links: in the menu, in the footer, inside articles and on product pages. Most business owners never think twice about them, yet they are one of the cheapest and most effective tools in organic search. Links help visitors find what they are looking for, and they help Google understand which pages exist on your site, what each page is about and which ones matter most.

Unlike links from other sites, which are hard to earn and must not be bought, internal links are entirely under your control. You can plan them, improve them and start measuring their impact tomorrow morning.

In this guide we cover:

• what internal and external links are, and which link types exist;
• how links affect crawling, indexing and rankings;
• how to build internal links in four steps and check the results;
• how to do it in Webflow, in WordPress and on a multilingual site;
• which mistakes cancel out all the benefits, and how to avoid them.

What internal links are and why they matter

An internal link points from one page on your site to another page on the same site. An external link points from your site to another site, or comes from another site to yours. The term "internal linking" describes both the process of placing links and the resulting link structure itself.

Links have two main jobs:

• Usability. Visitors go straight to the content they care about instead of hunting for it across the site. For example, if an article on choosing an air conditioner links to the models it mentions, the reader jumps to the product page right from the article, without going back to the menu to search.
• Search visibility. Google uses links to discover new pages and as a signal that helps it understand how relevant and important each page is. A page that many pages on the site link to usually gets more attention from the search engine than a page nothing links to.

The idea behind this is known as PageRank, Google's original algorithm, which estimated a page's importance by the number and quality of links pointing to it. Hundreds of other signals have been added since, but links remain an important part of the picture. That is why a well-organized link structure is not an "SEO trick" but part of the architecture of any good website.

Types of links

To speak the same language as whoever handles your SEO, it helps to know a few basic terms.

By direction: internal and external, outbound and inbound

• Outbound internal links lead from the current page to another page on the same site.
• Inbound internal links lead from other pages on the site to the current page.
• Outbound external links lead from your page to other websites.
• Inbound external links, or backlinks, lead from other websites to yours.
• Sitewide links appear on every page and point to the same page, for example links in the main menu and in the footer.

By form: anchor text or a bare URL

Anchor text is the clickable text of a link. For example, in the sentence "Before choosing a system, write a CRM brief", the anchor text could be "CRM brief". A good anchor tells both the visitor and the search engine what waits on the other side.

A link without a meaningful anchor is a bare URL in the text, or a link on words like "here", "click" or "read more". Links like these tell nothing about the target page, neither to the visitor nor to Google.

By context: links inside the content

Contextual links are woven into the text and lead to content that expands on the topic: a related article, a service page, research or official data. These are the most useful links for visitors, and therefore the most valuable for SEO.

rel attributes: nofollow, sponsored and ugc

A link's rel attribute tells search engines what the relationship is between your page and the target page:

• rel="sponsored" – for sponsored links, ads and paid partnerships;
• rel="ugc" – for links in user-generated content, such as comments and forums;
• rel="nofollow" – when you do not want to associate your site with the target page.

According to Google's guidelines on qualifying outbound links, these attributes are hints, not directives. Regular internal links need none of them.

Two more terms

A broken link points to a page that does not exist. The visitor sees a 404 error and usually leaves the site.

Breadcrumbs are a navigation trail, usually at the top of the page, showing the path from the home page to the current page: Home › Blog › SEO › This article.

How internal links help SEO

Discovering and indexing new pages

Search engines find pages with crawlers: programs that follow links from page to page and add new pages to the index. A sitemap (sitemap.xml) helps, but a link from a page Google already knows is a stronger signal: it shows that the new page is related to existing content and that it matters.

A page that no other page on the site links to is called an orphan page. It may be listed in the sitemap, but crawlers reach it slowly and visitors almost never do. These are usually old campaign landing pages, articles that were published and forgotten, and service pages removed from the menu.

Understanding what a page is about

The anchor text and the content around the link help Google understand what the target page is about. If five blog articles link to your service page with anchors like "corporate website design" and "small business website", the search engine gets a clear picture of the topic.

Distributing authority across pages

The home page and popular articles usually collect the most links from external sites. Internal links from them pass part of that authority to the pages you want to promote, such as service pages that bring in leads.

User experience and conversions

When visitors easily find the next piece of content, they stay on the site longer and eventually reach a page where they can get in touch. An article that explains a problem and links to the service page that solves it works like a small sales funnel. To see which paths actually bring leads, you need proper measurement, which we cover in our guide to end-to-end marketing analytics.

AI-powered search

AI search engines and assistants also reach pages through links and sitemaps. A clear structure, where each topic is anchored by a central page linked to supporting articles, helps them see that you are an expert in your field. We go deeper into this in our guide to optimizing content for AI search engines.

External links: what you need to know

External links work in both directions.

Outbound links from your site to trustworthy sources, such as research, official documentation or government data, show readers that your claims are well founded. This matches the principles Google describes in its quality content guidelines under the acronym E-E-A-T: experience, expertise, authoritativeness and trustworthiness. Do not be afraid to link out when it helps the reader.

Inbound links from other sites are still one of the most important signals of a site's authority. When a news site, a professional association or a well-known blog in your niche links to you, the search engine understands that you are trusted and cited.

Keep in mind: buying and selling links intended to influence rankings violates Google's spam policies. A paid link, such as a sponsored article or an influencer partnership, should get rel="sponsored". Ads and banners are marked this way by default, so they are not counted as part of the site's link profile.

Building external links is a long process that requires citation-worthy content, PR and partnerships. Internal links, on the other hand, you can organize yourself, and that is what we focus on from here on.

How to build internal links: a 4-step process

Step 1. Choose target pages

Start with the pages you want to strengthen. These can be:

• service or product pages that convert well;
• popular articles that bring traffic you can direct further;
• pages sitting on the second page of search results. A small push is often enough to lift them to page one.

You can find these pages in Google Search Console, in the Performance report: filter by page and check the average position and the queries that bring impressions.

Step 2. Find anchor texts

For each target page, write down three to five variations of its keywords. If you have already done keyword research for organic search or Google Ads campaigns, the list already exists. If not, start with the queries in Search Console and Google Keyword Planner.

For example, a Webflow website design service page fits anchors like "Webflow website", "corporate website on Webflow" or "migrating from WordPress to Webflow".

Step 3. Find source pages

Now look for pages that match the topic and can link to the target page. Two quick ways:

• a Google search in the format site:yourdomain.com keyword shows the pages on your site that mention the topic;
• the Links report in Search Console shows how many internal links each page has, revealing important pages that almost nothing links to.

The source page must match in content. If a wine shop is promoting its "Red wines" category page and an article on pairing wine with meat, a natural place for links to them is an article like "What to serve at a holiday dinner".

Step 4. Place the links

Most links are added manually to existing content. But the best approach is to think about links while writing: which pages the new article will link to, and which existing articles should link to it. Make this a standard item on your pre-publishing checklist.

Testing and tracking

Once the links are in place, check that they work and track the impact:

• Google Search Console – the Links report, indexing status and ranking changes for your target pages;
• Screaming Frog SEO Spider – crawls the site like a search engine and shows click depth, broken links, redirects and pages without inbound links. The free version limits the number of URLs;
• Ahrefs and Semrush – site audit tools that surface linking issues and suggest internal linking opportunities.

Ranking changes usually take a few weeks. Check the data after a month, not the next day.

Internal links in Webflow, WordPress and on multilingual sites

Webflow

In Webflow, it is easy to build some links automatically with the CMS:

• a "Related articles" block in the article template: a Collection List filtered by the same category;
• Reference and Multi-reference fields that connect an article to a service page or case study;
• breadcrumbs in the template, linking to the blog page and the category page.

301 redirects are set up in the site settings. After changing a URL, also update the internal links themselves so they point straight to the new address. If you are planning a new site with a well-organized content structure from the start, read about Webflow website development.

WordPress

In WordPress you add links in the block editor, and some tools save time:

• plugins like Yoast SEO and Rank Math add breadcrumbs with structured data, and some also suggest internal links while you write;
• a "Related posts" block shows articles from the same category;
• a redirect plugin, such as Redirection, helps manage changed URLs.

Do not rely on automatic links alone. A plugin does not understand context the way a person does, so choose in-text links manually. If your site is still in the planning stage, go through our guide to building a WordPress website.

What matters on a multilingual site

• Word forms. In many languages the same keyword appears with different prefixes, endings and inflections. Use natural, varied wording rather than one anchor repeated over and over.
• URLs. A URL in a non-Latin script turns into a long string of encoded characters when copied into WhatsApp or an email, which is why many sites use English URLs. What really matters is picking one approach and never changing URLs without a redirect.
• Accessibility. WCAG guidelines require that the purpose of a link be clear from its text or its context. A "click here" link means nothing to someone using a screen reader. A descriptive anchor helps both accessibility and SEO.
• WhatsApp and phone. WhatsApp and call buttons matter for conversions, but they do not replace links to service pages and articles. A visitor who is not ready to get in touch yet needs a way to keep reading.

Practical internal linking tips

There is no single scheme that fits every site: a blog, a corporate site and an online store each need different solutions. But a few rules work almost everywhere.

Link where it genuinely helps

Place the link where the reader will want to dig deeper. For example, in an article about building a website, link to the service page the first time you mention the topic, not only at the end. That makes a click far more likely.

Keep important pages close to the home page

Rule of thumb: every important page should be reachable within three clicks of the home page. A page buried deeper gets less attention, from both visitors and crawlers.

Build topic clusters

Group content around a pillar page for each core topic of your business. The pillar page links to supporting articles, and they link back to it and to each other. For example, an SEO service page can be the hub of a cluster with articles on AI search optimization, site speed and URL structure.

Do not overload with links

There is no magic number, but one or two links every few paragraphs is usually a reasonable amount for an article. Product pages typically carry more links: to the brand, the category, reviews, shipping and payment. There, every link is useful, so the volume does not get in the way.

Update links after URL changes

If a page moves to a new URL, replace every internal link to it. A direct link loads faster than one that goes through a redirect, and it is better for both visitors and search engines. Watch out especially for chains of several redirects in a row.

Use breadcrumbs

Breadcrumbs help visitors understand where they are and move to similar pages in one click. Add BreadcrumbList structured data markup so Google understands the site hierarchy too.

Common mistakes and how to avoid them

Even experienced SEO specialists get internal linking wrong. These are the mistakes we see most often on business websites.

Links to irrelevant pages

A link should lead to related content, and the text around it should match what the visitor will find on the target page. An article about the Python programming language should not link to a reptile shop just because the word is the same.

The same anchor everywhere

If dozens of pages link to the same page with the exact same anchor, it looks artificial. Vary the wording and use different forms of the keyword.

Too many links

A page crammed with links looks like an ad and confuses the reader. Besides, the more links a page has, the less value each one passes to its target.

nofollow on internal links

If you mark all internal links as nofollow, they stop helping the pages you are promoting. If a page should not appear in search, such as a thank-you page after a form submission, it is better to mark the page itself as noindex.

Broken links and 404 errors

This is one of the most common problems, especially after a platform migration or deleting products. Run a link audit at least once a quarter and fix every broken link: update it to the correct URL or remove it.

Links Google cannot follow

According to Google's guidelines on crawlable links, the search engine follows links built as an <a> tag with an href attribute. A button that navigates only via JavaScript, or a menu built without real links, may stay invisible to the crawler. For image links, fill in the alt text, because it serves as the anchor text.

Orphan pages after a migration

When moving to a new site, it is easy to forget pages that brought traffic on the old one. Before launch, prepare a complete redirect map and check that every important page has at least one internal link.

How RJL Studio builds a link structure that works

At RJL Studio we start with an audit: we crawl the site, map internal links, find orphan pages, broken links and redirect chains, and check in Search Console which pages are close to page one. Then we build a plan: topic clusters, pillar pages, anchors for each target page and automated related-content blocks.

On the Webflow and WordPress sites we build, this structure goes in at the planning stage: related articles, breadcrumbs with structured data and links from the blog to service pages. For migrations, we prepare a complete redirect map so the new site does not lose the traffic it has earned.

Want to know the state of the links on your site? Read about our SEO services or get in touch and we will get back to you.

Internal linking FAQ

How many internal links should an article have?

There is no fixed number. In a 1,500–2,500-word article, three to eight contextual links is usually a reasonable amount, provided each one leads to content that genuinely expands on the topic. Relevance matters more than quantity.

Do menu and footer links count?

Yes, they are sitewide internal links. They are important for navigation and show the search engine which pages matter most. But they are identical on every page, so contextual links inside the content convey much more about the target page's topic.

What is the difference between internal links and backlinks?

Internal links connect pages within your own site and are fully under your control. Backlinks are links from other sites to yours, earned through citation-worthy content, PR and partnerships. Both matter, but you can start with internal links today.

Should an internal link open in a new tab?

Usually not. Visitors expect an internal link to open in the same tab, and it is also more convenient on mobile. A new tab sometimes makes sense for external links, downloadable files or long forms that must not be lost.

How often should you check the links on your site?

For a small site, a quarterly check is enough, plus always after a structural change, deleting pages or a platform migration. For a site with an active blog or a store with changing inventory, check monthly and add internal links to every new article on the day it is published.