Before we begin, here’s a quick Q&A on Backlinks:
Q: What is a backlink?
A: A backlink is when a page of another website links to a page on yours.
Q: Why do backlinks matter?
A: While their impact varies based on relevance and authority of the linking page, they contribute to improved search rankings for the page that receives the backlink.
Q: How do I get backlinks?
A: Create and promote relevant, industry leading content to the right group of authoritative websites.
Q: What makes a backlink good?
A: The best backlinks are both authoritative and relevant.
Everything you need to know about backlinks and their impact on SEO
If you’ve taken even the shallowest dive into the world of SEO, you’ve probably heard of backlinks.
And that’s how it should be, because If SEO were a song, backlinks would be the chorus.
They’re that important.
Quite simply, they’re an essential element of the foundation for any website that gets found through organic search.
There’s only one problem:
As much as backlinks get talked up, there’s a massive gap between just knowing that backlinks are important and knowing how to gain quality authoritative backlinks that boost SEO.
In this post, we are going to talk about what backlinks are, how Google has refined its algorithms around them over time, and why they are such an important element of a website’s search rankings.
Most importantly, we are going teach you about the current climate around backlinks, and what you should focus on in your SEO and Content Marketing efforts if you want to gain quality backlinks that improve your search rankings.
Let’s get started!
What is a backlink?
A backlink is created when a page of another website links to a page on yours.
Backlinks are important to search engines because they are a signal that the site being linked to has quality, worthwhile information on a topic relevant to the site linking to it. You can think of it as a digital vote of confidence.
The definition of a quality backlink, and the determination of how much value a backlink adds to a site’s search rankings has also changed over time.
There are a variety of different types of backlinks, and the SEO benefit provided to the website receiving them differs.
Contextual vs. Non-Contextual links
A Contextual link is a link that is surrounded by text, like the one at the beginning of this sentence.
Contextual links are the most valuable type of link for a variety of reasons:
- They’re extremely relevant to the content that directly surrounds them
- They make it easy for users to expand their knowledge base on a specific topic
- They provide the opportunity to use valuable keywords as anchor text
- Google understands these benefits and places more value on contextual links because of them.
Internal contextual links (contextual links that link to a different page on the same website) are beneficial because they increase the amount of pages viewed by a website visitor, thus decreasing bounce rate and increasing time on page.
However, keep in mind that when creating links within your own website, Google won’t assign as much value to the backlink as if it were to come from an external source.
An example of a non-contextual link would be a link in an online directory or in a content roundup.
These backlinks can still be really beneficial, they just don’t hold as much weight as contextual links because they are less specific and less intertwined with the user experience of the linking site.
Types of Backlinks
There are hundreds of types of backlinks and even more ways to get them.
Here are a few examples:
- Contextual links from another website
- Contextual links from guest blogging on another site
- Inclusion in a content roundup
- Inclusion on a resource page
- Online professional directories
- Forum posts and/or comments
- Inclusion of a link in a testimonial
- Inclusion of a link in a social media post
Some of these backlink types are much more beneficial to SEO than others, and some have no effect on SEO whatsoever.
More on that later.
Now that we know what backlinks are, let’s dive into how they became important and why they continue to be one of Google’s top ranking factors.
A Brief History of Backlinks and SEO
Google’s algorithms change. A lot.
In fact, Google averages over 500 changes to its search algorithm each year.
Most of these changes are minor.
But in Google’s history, some of the major algorithm updates—those that change the course and the mission of the SEO industry as a whole—have been directly related to backlinks.
The most important of these is the Panda update.
Google Panda and Its Aftermath
Back in the day, a website’s search rankings lived and died by its number of backlinks.
“Academic citation literature has been applied to the web, largely by counting citations or backlinks to a given page. This gives some approximation of a page’s importance or quality. PageRank extends this idea by not counting links from all pages equally, and by normalizing by the number of links on a page.”
They go on to state:
“Another intuitive justification is that a page can have a high PageRank if there are many pages that point to it, or if there are some pages that point to it and have a high PageRank. Intuitively, pages that are well cited from many places around the web are worth looking at. Also, pages that have perhaps only one citation from something like the Yahoo! homepage are also generally worth looking at. If a page was not high quality, or was a broken link, it is quite likely that Yahoo’s homepage would not link to it.”
Using this logic, backlinks to a given page can be likened to votes. If a website links to an outside resource, it is voting for the reliability or utility of that given resource to support a claim or add value.
These votes were all considered to hold equal value, meaning a backlink from any website would boost search rankings an equal amount.
Because of this immense opportunity, webmasters scrambled to get their company on as many online directories as possible, knowing that this would improve their search rankings.
Clients paid SEO companies to fabricate spam links from link farms (a group of websites where each site links to all other sites in the group).
Through these methods and other link schemes, a website could gain thousands of backlinks.
Backlink quantity, at the time, signaled to Google that the site was a high-quality, reputable source and it therefore boosted their results in search rankings.
This strategy worked well until Google caught on that people were taking advantage.
In 2011, Google released its Panda update, which among many other major changes to SEO, began to penalize websites with undeserved links.
With the update, Google shifted the emphasis on backlinks from quantity to quality. It was no longer possible to cheat the system and come out on top of competitors with fewer, yet higher quality backlinks.
This led to many websites with massive amounts of traffic losing huge portions of it essentially overnight.
Realizing that thousands of links from a link farm or dummy online directory have no correlation with the actual quality and relevance of a website or a piece of content, the Panda update and updates to Google’s PageRank algorithm enabled Google to improve its criteria for identifying websites deserving of an SEO boost.
Google wants to reward content that receives backlinks from authorities in its field. These are referred to as authoritative backlinks.
Let’s say I’m a blogger who writes about transportation and infrastructure reform. If I receive a backlink from a friend’s new website, which focuses on providing recipes and dietary advice, Google doesn’t have much reason to give me a boost in search rankings. The backlink is from a website that is irrelevant to my content and not established enough to be identified as authoritative.
On the other hand:
If I receive a contextual backlink from the Minnesota Department of Transportation website validating my claims, Google will attach a great deal of value to this and give me a major boost.
Receiving authoritative backlinks can also improve your website’s TrustRank, a metric related to PageRank created by Google to weed out websites with high spam content.
What is PageRank and what are its implications?
One of the major factors coming out of Google Panda, specifically pertaining to backlinks, were simultaneous improvements to Google’s PageRank algorithm.
PageRank and its evolution over time is the best way of understanding how Google assesses the quality and relevance of backlinks, and how those backlinks will consequently affect a website’s search rankings.
Earlier, we discussed the idea of a backlink as a vote of confidence from one site to another. Initially, all votes on the internet were considered by Google to hold equal importance, and therefore equal SEO implications.
With PageRank, Google implemented a method for assessing the SEO weight of a backlink based on the importance and quality of the linking site.
In other words, links from more authoritative, well established websites would have a greater effect on SEO.
But Google’s criteria for analyzing the value of backlinks didn’t stop there. It continued evolving.
Google’s RankBrain and its effect on Backlinks
In its quest to develop into an even more effective search engine, Google announced its machine learning RankBrain algorithm in October of 2015.
While RankBrain is largely centered around adjusting search rankings around specific user experience signals and determining search intent, it also affects the weight of backlinks.
According to Brian Dean of Backlinko,
“Depending on the keyword, RankBrain will increase or decrease the importance of backlinks, content freshness, content length, domain authority etc. Then, it looks at how Google searchers interact with the new search results. If users like the new algorithm better, it stays. If not, RankBrain rolls back the old algorithm.”
How PageRank and RankBrain affect Content Creation and Link-Building
First and foremost, Google Panda nullified the effectiveness of link farms and other link scams, which caused the art of link-building to evolve beyond gimmicky techniques and focus on the creation of quality content that would appeal to authoritative sites all over the internet.
The further evolution of PageRank and more recently, RankBrain, has made it necessary for link-builders to be even more creative and relevant with their link-building methods and put more work into researching content topics and link sources that would lead to the most significant SEO improvements.
It’s no longer enough to receive a backlink from a high-profile, authoritative website. Google can analyze the relevance of that backlink to determine whether or not your site will give users what they are looking for. If relevance is lacking, your search rankings will suffer.
Dofollow vs. Nofollow Links
Google uses a number of tactics to reward websites that receive authoritative, relevant backlinks. Similarly, it offers little to no help to those who try to find shortcuts.
One of Google’s primary methods for doing this is through its differentiation between dofollow and nofollow links.
Simply put, a dofollow link is a link that Google counts as productive points toward your page’s ranking.
An example of a dofollow link would be a contextual link from another website.
Nofollow links are not counted by Google as productive in terms of improving your search rankings.
An example of a nofollow link would be a social media or forum post that links directly to your website.
Nofollow links are not completely useless, as they can help drive referral traffic (people who click on the link) to your website, but they do not carry any SEO weight.
Google’s differentiation of dofollow and nofollow links further emphasizes the fact that valuable backlinks rely on quality and relevance, not quantity.
How can I get backlinks to my content?
There are two major takeaways from Google’s evolving behavior toward link building:
Good backlinks are both authoritative and relevant.
The best way to get this type of backlink is by creating high quality content and promoting it to the right people.
Let’s tackle #2 in particular, because it achieves what’s described in #1 simultaneously:
Google’s Panda update, and subsequent updates to its PageRank, TrustRank and RankBrain algorithms, tell us that “high quality content” is much more than just well-written.
Content that earns authoritative backlinks adds value to the entities that link to it. In today’s era of SEO, it’s important to think about who these entities are, and why they would link to a piece of content.
Google’s philosophy on backlinks is both democratic and meritocratic. It’s much more difficult to earn quality backlinks today than it was in 2011, but a small amount of quality backlinks can have a far larger SEO impact today than ever before.
Common terms that are used in backlinks are:
- Link Juice: Link juice helps you in getting higher ranking among other web pages’ links. Whenever a webpage link to your content, let’s suppose an article or media, it passes link juice. This link juice helps in the high ranking of your content.
- No-follow link: This doesn’t contribute to the ranking of your content. Instead, this is helpful when you are linking your site to an unreliable site, and you want to stop passing the link juice. You can use a no-follow tag to do so.
- Do-follow link: By default, all the links that you add to a blog post are do-follow links and these pass link juice.
- High-quality links: High-quality links are the ones that decide the high and high ranking of your website because these links are in the good books of Google. These links can be websites or blogs who are following the ethical guidelines stated by Google. If you are getting link juice from such websites, you are following a right path.
- Low-Quality links: Links that come from harvested sites, automated sites, and spam sites are categorized as low-quality links. These links will derail your ranking on Google or maybe worse can happen. Always stay under the guidelines stated by Google and one should be alert when purchasing backlinks for their websites/blogs.
- Internal links: Links that are going from one page to another within the same domain are called internal links. The process itself is referred to as internal linking or interlinking.
- Anchor text: Anchor text backlink work when you are trying to get ranking for a particular keyword. Anchor text is basically a text that is used for hyperlinks.
What effects do Backlinks in SEO have on your business:
Here are some of the important effects backlinks in SEO have on your websites:
Search Engine Ranking:
Since all the chaos on websites is about SEO ranking and search engine tend to bring half of the online traffic to your website. Backlinks are the main source of bringing traffic or in technical terms “organic ranking” to your website. If the backlink is of high quality, relevant to your industry, has the right anchor text and is a do follow link, Google will rate it higher and improve rankings for the keywords on your target page. This, in turn, will help you to get more organic traffic.
As mentioned above, search engines provide half the traffic which is a good thing but then what about the other half? Another half of the traffic is independent of search engine rankings. Here comes referral traffic which covers a large percentage of total traffic. Referral traffic is basically the traffic that is generated by people getting access to your account through inbound links. But links don’t only lead to search engine traffic. A well-placed link on an authority site can direct an abundance of referral traffic. Another interesting fact about well-placed links is that a single link on a popular website can continue to push traffic to your website for years.
Create Brand Authority:
Backlinks are associated with not just bringing traffic to your site but they also increase the credibility of your website through Google. When Google looks to these links which are a good sign that your website provides useful information, consumers see it as a good indication that your brand is one that they should take an interest in. Google passes your website as one with credible and useful information, your potential customers will also consider your website as one where they can or should take interest in.
Long-term Sales planning:
Feel free to invest in link building because, link building, unlike other traditional marketing tactics last longer. Links get you a permanent placement that continues to send referral traffic for the duration of their lifetime. On the other hands paid ads and other marketing strategies you only get temporary visibility of your content. Once you stop putting your content will be forgotten shortly. So, if your business can benefit from more search visibility, greater brand recognition, and authority, more traffic, and/or a better competitive edge, you should be working on a link building campaign. But here what really matters is how you approach link building? If you frame your links into good, valuable, relevant content and keep your links valuable with your users in mind, you should have no problem earning the recurring, compounding return of these benefits.
Link building can often lead to outreach with other relevant websites which will work as a promotion to your specific content. A common goal of outreach is to get a link, but there is much more to it than just this: Outreach can help you build long-term relationships with key influencers in your industry, and these relationships can mean that your business becomes highly regarded and trusted.
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