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Internal Linking, as a practice, has been prevalent in the SEO circle for quite some time now. It is a quite popular strategy among the experts, and if done properly, the pay-off is quite rich. Like any other SEO practice, internal linking has a few optimization techniques that we will be discussing in this blog. However, since this practice is a bit on the older side, we think a refresher is in order.

In this blog, we will discuss the following points:

1) What Is Internal Linking
2) Difference Between Internal And External Linking
3) Importance
4) Best Practices
5) Techniques to Employ
6) Impacts of Internal Linking
7) Our Views on the Practice
8) Case Studies
9) Tools To Analyze Internal Linking

Let us begin with the basics first.

What Is Internal Linking?

Internal linking is an ethical SEO practice where we basically link one page to another (relevant) page on the same domain.

How interlinking works

Internal linking can be a very effective technique when a new page is being introduced on your website- you can link it to an existing high-value page on your website that is popular on the web. This will enable you to benefit from the amplified online exposure of the popular webpage and drive users as well as search engine crawlers to the new page. This technique scores high marks especially for blog posts.

Difference between Internal and External Linking

When we talk about external linking, what it basically means is you’re linking your website with another completely different website. This is just the completely opposite in nature of internal linking, where you’d link webpages with other relevant webpages on the same domain.

The image below displays how internal links can help you create a well-knitted network.

A network of linked web pages

Both external and internal linking have their own strengths and shortcomings, especially when it comes to link authority and link juice flow.

There are misconceptions that internal linking is not as beneficial as external linking. However, internal linking can carry more authority and prove to be instrumental in gaining ranking. This is the reason why many big websites rank higher than smaller ones. The number of internal links these sites secure, help them rank higher (think E-commerce sites).

Importance of Internal Linking

One of the insights we have developed about the popular search engines is that, they always rank pages that are more important and useful for users. Hence, in order to rank the pages of your website, you need to provide value to the users as well as point out the pages you want to rank. Here, internal linking comes into play. It’s like establishing a vote of confidence for your own web page so that Google, along with other search engines, considers it as a valuable resource to rank.

Google's crawling process

The internal links not only indicate the most important pages of your website, but they also gain in terms of link authority.

As the links of high authority are shared throughout your website, the value of your website as a whole increases as well.

Best Practices: How Should You Use Internal Linking

Internal linking is often practiced from an SEO point of view, i.e. to get a link crawled as much as possible. However, internal linking is best implemented when you keep your users in mind.

Think about it in this way-

You have just added a new page to your website that specifies the services you offer. On that page, there is a phrase which you would like to use to link the new page to a particular page that is relevant i.e. provides value to the user and already carries good online authority.

This is the basis of a good internal linking practice.

You must learn to identify your user’s intent and understand how your links can be beneficial for them.

How hyperlinks are created

This leads us to what you should not do while implementing internal linking-

You should never go overboard with internal linking. As mentioned earlier, user’s intent should be the basis for internal linking- Too many internal links on a page will not only confuse your visitors, but can cost your website penalties.

For the websites that are employing CMS like WordPress, links can also be generated from the varied plugins and functions implemented on the website. This can turn links into HTML, thus generating even more links, which are mostly irrelevant.

Hyperlinks from menu items

So, a website’s HTML code should be thoroughly checked and cleaned, and interlinks created, while keeping the concept of “siloing” in mind.

Let us explain what Siloing really is-

When a website is created, a particular hierarchy is kept in mind- Refer to the image below:

Website structure based on siloing

Ideally, websites go with the homepage on the top, followed by subsequent category and sub category pages. Siloing proves to be vital in creating a user-friendly website architecture. While siloing has its own merits, with the bigger websites where users can find it difficult to navigate to the other pages, internal linking provides users an opportunity to discover those inner pages.

The complexity of siloing depends on the size of the website. A website with a few pages will have a simple silo structure, while sites with thousands of pages will have a more complicated structure.

Internal linking and silo structure

If deemed necessary, internal links should be built from scratch.

Another point you should keep in mind is the addition of title attributes to your links. Title attributes should not be treated as a copy of the anchor text, but should provide additional information about the link.

Effect of title attributes on internal links

Techniques To Employ

Before creating any interlinks, draft a proper strategy to employ them effectively throughout the website. Use the following techniques to get the best results:

  • Create content, lots of it

    This is perhaps the most important factor that should be paid heed, early on. Having more content on the website provides you with the opportunity to interlink lot of content throughout the website. This will drastically improve the internal linking strategy.

  • Link Deep

    On many occasions, we have observed that people completely misinterpret internal linking and end up redirecting most of their internal links to the homepage or contact page. Unless relevant, this practice must be avoided.

    Instead of creating links that direct users to the pages that are easily accessible from the website’s menu, a good strategy will be to create links that lead your visitors to the inner pages, like to a blog post that is not readily visible.

    Link earning potential of a typical website

    In addition, it is always a good practice to link to and from old but relevant articles and blogs, which brings us to…

  • Link With Blog Posts

    Onsite blog posts can be your go-to option for interlinking. Blog posts can contribute to the visitor’s experience by providing essential insights on certain aspects present throughout the article. So the best practice in this regard would be to link your blog posts to the service/product pages on your website.

  • Use proper anchor texts

    Effective use of anchor text cannot be overstated while implementing internal linking on your website. Having said that, anchor text created should look natural and go with the context of the information being shared. They should not be too focused on your keywords in a way that they come across as spammy and artificial. Use phrases, bits and pieces of sentences that are relevant to the page you are targeting as anchor texts.

  • Relevant linking is really Important

    Internal links should only be added to a page if it is relevant to the content. Do not add links just for the sake of adding them. It only comes across as overdone and may even affect your page rank. For example, if you have a page that is about books, you should only link it to a text that talks about the benefits of reading books.

  • Use natural links

    Internal links should be created while keeping users in mind, i.e. – they should be beneficial for the users. The links, thus, should be increasingly natural and connected. Users are more likely to read related stuff if they find it interesting and valuable. Search engines also work in a similar fashion.

  • Do-follow vs. No-follow links

    When you use ‘no-follow’ links, you are basically instructing search engine crawler bots to ‘stay away’ from such links. This can be useful for the links that lead to webpages that are not present on your own website. However, when you are interlinking, you should always use do-follow links so that search crawlers can follow those links and index them properly.

Process of crawling  website by Google's spider bot

One important detail we would like to reiterate is that you should not go overboard with internal linking. If it does not seem necessary and productive for the user, it is best to skip it. Low value pages such as career, archive and category should be avoided.

Internal links should also be avoided on certain pages that cannot be crawled properly. Pages that have been blocked by robots.txt belong to this section.

Impacts of Internal Linking

Internal linking, when properly executed, can provide a bunch of benefits that have a positive impact upon a website’s online performance. We have listed a few of them below:

  • Less Bounce Rate, more conversions

    When your visitors are surfing your website, they are more likely to follow your internal links if they are relevant to their interests. This will result in a reduction in bounce rate throughout your website as the percentage of users’ session time increases.

  • An increase in Page Rank

    A decreased bounce rate and an increase in user sessions will result in the website becoming more important in the eyes of search engines, thus increasing its page rank.

  • Optimum crawling and indexing

    When you interlink your pages properly, you are giving an opportunity to search engine crawlers/bots to navigate your website with greater ease, which paves the way for faster crawling and indexing of your web pages.

  • Increased page views

    As mentioned earlier, a well interlinked website will see a rise in user interactions as users discover more pages and posts in your website. This will, in turn, increase the number of page views per session.

  • Increased Click-through-rate

    A website with proper internal linking will invite more clicks from users. In fact, when you interlink inner pages, you also give those pages a chance to get indexed in the SERPs, thus ensuring more user visits and click-through-rates. This in turn will increase the rank of the website as a whole.

  • Optimized Flow of Link Juice

    Think about link ‘juice’ flow as pouring water from a large cup into multiple smaller cups so that all of them get an equal share of the water.

  • Process of link juice flow throughout a website

    When you interlink properly, you allow a steady link flow to all your inner pages.

    Our Views on the Practice

    Over the last 6 months, we analyzed a large chunk of internal links across multiple websites. There is no denying the fact that internal linking should be of prime importance while drafting up an SEO campaign.

    Internal linking is best done ‘on the go’- That is, they should be implemented as soon as you are done creating a new page or post. This will ensure that when the page is being crawled by bots, they also get the opportunity to crawl through all the pages that are relevant to the new one.

    One thing that you should keep in mind is that, when it comes to SEO, 60% of the strategies and rules are not set in stone, so keep on testing new ways to rank your website and stay ahead of the trends (we do just that!). With the increasing usage of machine learning and A.I, tactics such as these should be high on your list.

    Below, we are going to mention two case studies through which, we will outline the benefits of internal linking.

    Case Study #1

    One fine example of internal linking we can demonstrate is of Amazon. As an e-commerce giant, Amazon is a website with hundreds of thousands of pages. So, it is to be expected that the website will have an extremely complicated internal architecture.

    Imagine something like this:

    Process of internal and navigation links

    With so many pages, it can get pretty confusing for even the seasoned shoppers to find all the pages here. But Amazon has handled this problem beautifully.

    Web page of Amazon website

    As you can see, Amazon has included the links of some of their inner pages on the sidebar as categories, the main body of their page as anchor texts, as well as the footer.

    Footer links on Amazon website

    This is the reason why Amazon always comes on top when someone wants to make an online purchase. All these internal links provide a great boost to the website’s authority, not to mention the link flow it receives. Users also find it easier to navigate throughout the website because of the links.

    Google search result showing e-commerce websites

    Case Study #2

    For our next case study, we have chosen an online portal that we think is quite different in terms of its services, but is nevertheless quite well known. Whenever you search for any ailment or disease, its symptoms and cure, chances are you will get WebMD.com as the top search result.

    Google search result for cancer cure

    As you can see, WebMD is taking up two valuable organic positions with an equally important search query.

    Though you might think that this is happening because WebMD is a popular website, you’d be surprised to know that popularity is only one half of the total equation involved here.

    Just like Amazon, WebMD is quite a large website, with hundreds of pages. To help its users, WebMD has linked it’s inner pages quite intricately.

    WebMD website showing internal links

    As you can see, WebMD has included a variety of topics and categories on its sidebar and also linked anchor texts to relevant inner pages. Hence, search engines give this website a lot more importance than other sites.

    The two websites are just examples of how internal linking can help your online brand go big. You should also remember that the number of internal links should be based on the size of your website.

    Carrying out a research and analysis on individual internal links can be quite tedious, especially if the website is large like WebMD or Amazon.

    We are listing some really handy tools we are huge fans of, which have helped us develop keen technical insights:

    • Google Webmasters:

      Verifying your website in Google’s Webmaster tool is the very first thing you should do after getting the website live. This tool can prove to be very helpful as you would be able to keep track of all the internal links, external links, as well as anchor texts. You’ll be able to find these by logging in to your webmasters account, going to your property , then selecting Search Traffic > Links to Your Site

      An interface of Google webmaster showing internal links

      The screenshot above is a representation of what you’re going to see in the webmaster tool. The “Who links the most” section lists all the domains from where your website is receiving links. The “Your most linked content” displays all your internal links, while the “How your data is linked” section displays all your anchor texts.

    • Xenu’s Link Sleuth:

      Xenu’s link sleuth is kind of a scrapper tool which scans your website to find out all the links present in it. This includes external links, broken links as well as internal links. After Xenu finishes scanning for the links, you can either export the results in an excel file or view it in an HTML format.

      The interface of Xenu's link sleuth tool

    • Screaming Frog:

      Screaming Frog is a tool similar to Xenu. However, it has even more customization options, and can prove to be a tad more complicated for novices. The tool is free to use, BUT with certain limitations, of course.

      The interface of screaming frog software

    • Open Site Explorer by Moz:

      Open Site Explorer (OSE) by Moz provides an in-depth look at your website’s links, external links linking to your website including Page and Domain Authorities (PA/DA) which are basically the link authority passed by your main domain and the individual pages. The tool also displays Spam Score of individual links that indicates how “spammy” those links are, in accordance with Google’s guidelines.

      The interface of open site explorer tool by Moz

      The catch- you will have to pay a membership fee to use the tool to its fullest potential.

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