Internal link optimization sounds like something you'd need a course to understand. For bloggers, it comes down to one question: are you helping readers and search engines find more of what you've created?

If you're not sure, this guide is for you, and you don't need to be a tech person to use it.

Internal links are links from one page on your site to another page on the same site.

Internal linking 101

When you publish a banana bread recipe and link to your related post on freezing bananas, that's an internal link. When a travel blogger links from their “Best Things to Do in Portugal” pillar page to their Lisbon city guide, that's also an internal link.

They're one of the most effective ways to improve your blog's SEO. And they make your site better for the people reading it.

Ready to start adding them? Here's how to add internal links in WordPress step by step.

It helps Google understand what you've built. Google crawls your site by following links. The more connected your content is, the more easily Google can discover, index, and understand how your posts relate to each other.

It spreads SEO value to posts that need it. Your most popular posts carry real ranking power. When they link to newer or lower-traffic posts, some of that authority flows through. The SEO peeps call this “link juice.” Not the most elegant term, but it's pretty on point.

It keeps readers on your site longer. A reader lands on your post about beginner sourdough. If there's a link to your guide on maintaining a starter, some of them will follow it. That's another page view, more time on your site, and a reader who trusts you more.

1. Use relevant descriptive anchor text

Anchor text is the clickable words or phrases in your links (the underlined or highlighted words).

Descriptive (Good) anchor text tells Google what the linked page is about. It also tells your readers, which means they're more likely to click.

Bad anchor text: click here or read more
Better anchor text: best weeknight pasta recipes, or what to pack for carry-on only travel

Anchor text is key to internal link optimization

One more thing: don't use the same phrase every time you link to the same page.

Vary it naturally. “vegan cheese recipes,” “favorite vegan cheese recipes,” and “recipes using vegan cheese” all work. Plus, natural variation looks better than mechanical repetition.

2. Think of your site structure as a hierarchy

Your homepage links to your most important category pages. Category pages link to individual posts. Individual posts link to each other and back up to relevant categories.

This structure makes it easy for readers and search engines to navigate your site logically. It also helps Google identify which pages matter most — and rank them accordingly.

3. Get your site organized before you start linking

Your internal links can only be as good as your underlying structure. If your categories are unclear or inconsistent, your linking will be too.

Before you go on a linking spree, get clear on your most important pages: your top content categories, your best-performing posts, and the pages you most want to rank. Link to those with intention, not randomly.

4. Build topic clusters around your strongest content

A topic cluster is a group of related posts that all link to a central “pillar” page and to each other.

One great way to optimize your internal linking strategy is through topic clusters.

Topic clusters and pillar page examples

If you have a pillar page about meal prep, all your related posts (weekly meal prep ideas, how to batch cook grains, best containers for batch cooking) should link back to it. The pillar page links out to all of them. If you're a travel blogger and your Portugal guide is your pillar, your Lisbon, Porto, and Algarve posts should all link back to it.

This tells Google your site has depth on that topic, and depth builds authority.

Here's how a topic cluster for pumpkin pie may look:

Pumpkin pie topic cluster example

​So, you have your pillar page, which internally links to all of your supporting pages. And your supporting pages all internally link back to your pillar page.

This way, you end up with a giant (but clear) web of links that visitors and search engines can easily navigate.

5. Balance between internal and external links

Internal links point to your own pages. External links point to other sites.

Both matter. Internal links build your site's structure and authority. External links signal that you're engaging with the broader web — citing sources, providing context, giving readers more to explore.

Most of your links should be internal, pointing readers deeper into your content. External links should be purposeful, not reflexive.

Want to know more? This internal links vs external links article goes deeper!

6. Keep a clean URL structure

Your website's URL structure should be logical and easy to understand.

For example, let's look at two URL examples:

  1. https://www.castironqueen.com/blog/best-cast-iron-skillet-recipes
  2. https://www.castironqueen.com/p=2938?ref=true&cat=4

Which one gives you the best idea of what the page is about?

That's right, the first one. And that's because it's following the rules we've talked about in this article! It's descriptive and contains keywords!

So, take the time to get your URLs right.

A broken internal link is a dead end. Your reader clicks through, lands on an error page, and leaves. Google crawls to the link, gets nowhere, and trusts your site a little less.

Check Google Search Console's Links report regularly. When you find broken links, either update the destination URL or remove the link entirely.

The advice around internal link optimization is simple. The execution is what gets tedious.

You have hundreds of posts. Making sure every mention of “chickpea pasta” links to the right place, keeping links updated across old content, and catching the links that never got added in the first place is real manual work.

Tasty Links is the tool you need. It's a WordPress plugin that handles internal linking automatically.

You set a keyword — say, “foundations for flawless makeup” — and the URL you want it to link to. From that point on, every time that phrase appears anywhere on your site, it links automatically. No going back through old posts or manual searching.

WordPress link plugin Tasty Links showing how the keyword ‘easy weeknight dinner ideas’ is set once and then automatically linked inside a recipe post.

The keyword variation feature that saves bloggers real time

Bloggers write the same things in different ways. One post says “flawless makeup foundations.” Another says, “My favorite, flawless makeup foundations.” A third says “foundations for a flawless look.”

All three should link to the same place, but if you've only set up one keyword, two of those three won't fire.

With a WordPress link plugin like Tasty Links, you can add multiple keyword variations to a single link. Set up all your common variations and every version routes to the same destination.

an image showing keyword variations ("all-purpose flour" and "all purpose flour) in Tasty Links

This is especially useful for:

  • Ingredients or products with multiple names: “coconut aminos” and “coconut amino acids,” “Instant Pot” and “pressure cooker” and “multi-cooker”
  • Travel destinations: “things to do in Lisbon” and “Lisbon travel guide”
  • Lifestyle topics: “capsule wardrobe,” “minimalist wardrobe,” and “simple wardrobe basics”

Once you set it up, your internal links stay consistent even when your writing doesn't.

Beyond internal links, Tasty Links also manages your affiliate links — auto-linking keywords to products, adding affiliate disclosures automatically, and pulling Amazon product images through the API.

If you want a broader view of your site's internal link health, a few options:

Google Search Console: Free and already available to you. The Links report shows which of your pages have the most internal links pointing to them, and which have almost none. Start there.

Semrush or Ahrefs: Paid tools that give you a full internal link audit. Worth it if you're doing a serious site review.

Spreadsheet: If you love a tedious task, a simple spreadsheet tracking which posts link to which gives you full visibility. It's not glamorous, but it works.

Internal linking is great for your website. But there are definitely a few things you should try to avoid.

  • Don't use the same keyword too many times in your links. This makes search engines think you're trying to trick them, and that's not good!
  • Don't use boring link words. Words like “click here” or “learn more” don't tell people (or Google) anything about where the link is going.
  • Don't go crazy with links. Too many links on one page looks cluttered and confuses readers.
  • Don't link to bad websites. Only link to websites that are trustworthy and have good information.

Follow these tips, and you can make sure your internal links are helping your website, not hurting it!

Internal link optimization FAQ's

How many internal links should a post have?

There's no magic number. Focus on linking to genuinely related content. Posts that add value for your reader at that point in the article. Forced links for the sake of volume don't help.

Do internal links have to use exact keywords?

No. Varied anchor text is better than robotic-sounding repetition. Link to the same page with several different natural-sounding phrases over time.

Can I fix old posts that have no internal links?

Yes. Start with your highest-traffic posts and add links to related content. If you use Tasty Links, you can set up keywords to auto-link retroactively. They'll populate across all your existing posts automatically.

What's the difference between internal and external links?

Internal links connect pages within your site. External links point to other websites. You need both, but most of your links should be internal.

What are the benefits of internal link optimization for SEO?

Internal linking has several benefits for SEO. It helps search engines understand your site's structure and spreads link equity throughout your website. It also improves the user experience, which leads to higher page times and lower bounce rates

How can I perform an internal link audit?

Identify all of the internal links on your website. Then, evaluate the quality and relevance of each link. Make sure they are accurately describing the content of the linked page. You should also make sure there are no broken links or links pointing to outdated or irrelevant content.

Every post you publish can either connect to your larger site or sit in isolation.

Connected content gets found by readers who follow the links and by Google, which understands your site better when it can trace the relationships between your posts.

Start with your most-visited posts. Make sure they link to your best related content. Set up Tasty Links so your most important keywords link automatically going forward. And as you publish new content, build the connections in from the start.

Your existing content is an asset. Internal link optimization is how you unlock it.

(This article may contain affiliate links.)