A backlink is a link from someone else's website to yours. Some people call them inbound links or incoming links. Search engines treat each one like a vote of trust. Backlinks from respected sites tell Google, and now AI systems like ChatGPT, that your company is real and worth recommending. You earn them by publishing content other sites want to point to. This week, a national trade magazine linked to us, so we are using our own story to show you exactly how it works.

SpeedMobi is a done-for-you digital marketing company that has helped over 5,000 home service businesses get found online since 2013. This week, CONTRACTOR, a national trade magazine for plumbing and mechanical contractors, published an article we wrote and linked back to our website. We are going to use that real example to explain the thing most business owners ask us about: why does creating content matter, and how do backlinks work anyway?

What Is a Backlink?

A backlink is a link on someone else's website that points to your website. That is the whole definition. When a magazine, a supplier, a local news site, or another webpage links to you, you have a backlink. SEO pros also call these inbound links or external links, because they come from one website to another.

The clickable words that hold the link are called anchor text. For example, if a magazine writes "the team at SpeedMobi explains review replies" and the words are clickable, that is a backlink with our name as the anchor text.

Think of it like word of mouth, but on the internet. When a neighbor tells a friend "call this plumber, they did good work for me," that referral carries more weight because it comes from someone else. A backlink works the same way. The other site owner is vouching for you, in public, where search engine bots can see it.

Why Do Backlinks Matter for Google Rankings?

Backlinks are important because search engines like Google treat them as votes of authority when deciding which sites deserve to rank higher. Google was built on this idea. Its first algorithm, PageRank, ranked pages by analyzing the backlinks pointing at them. Sites that credible sources link to are more likely to be shown in search engine results, which means more organic traffic and more visibility.

SEO pros call this passing link equity or domain authority. In plain words, some of the authority the linking site has earned flows to the linked page on your site. Backlinks also send referral traffic: real visitors who click the link and arrive at your website. Backlinks remain one of the strongest ranking factors in SEO.

Here is the plain logic. Anyone can say "we're the best roofer in town" on their own site. Talk is cheap. But when other real websites link to yours, that is evidence someone else found your content valuable and worth pointing to. Search engines cannot visit your job sites or read your contracts. Backlinks are one of the strongest outside signals they have, a public ranking signal of quality. That is why link building is a core part of search engine optimization, or SEO. That is a big part of why some businesses sit on page one while others with nicer trucks sit on page five. If you want the full picture of how local rankings work, our local SEO guide walks through every factor.

Are All Backlinks Equal?

No. Not all backlinks carry the same weight. One backlink from a relevant, high quality site is worth more than 100 links from low quality sites. The quality of the source matters more than the number of backlinks you have. Search engines assess the whole picture: the linking site's domain authority, its relevance to your work, and where the link appears on the page. High quality backlinks tend to come from authoritative sites with real readers.

If anyone tries to sell you a big batch of cheap backlinks, walk away. Buying backlinks to manipulate rankings breaks Google's rules. Spammy backlinks from spammy sites can drag your search rankings down. A strong backlink profile built on quality beats a big pile of harmful links every time.

What Are the Main Types of Backlinks?

The main types of backlinks are editorial backlinks, guest post backlinks, resource pages, directory listings, and social media links. Each carries a different SEO value:

• Editorial backlinks: earned inside real articles when journalists or bloggers cite your work. These carry the most weight.
• Guest post backlinks: you write an article for another site in your niche, and it links back to you.
• Resource pages: curated lists of useful resources on a particular topic that include your content.
• Directory listings: high quality directories help local visibility. Low quality directories do nothing.
• Social media links and blog comments: usually nofollow backlinks, so they pass little authority, but they build brand awareness and drive traffic.

Dofollow Links vs Nofollow Links: What Is the Difference?

Dofollow links pass authority to your site. Nofollow links carry a rel nofollow tag in the HTML code that tells search engines not to count the link as a vote. Most editorial backlinks are dofollow. Links from forums, blog comments, and most user generated content are marked nofollow. Both kinds can still send referral traffic, but follow links are the ones that improve rankings.

How Do You Earn Backlinks? A Real Example From This Week

You get backlinks by creating content that other websites want to reference. Guest posts on industry blogs, useful guides, original data, and outreach to journalists all generate backlinks the honest way. Organic link building takes effort, but earning backlinks this way is the only approach that lasts. It is the method that just worked for us.

Here is exactly what happened. We wrote an article about how contractors should reply to Google reviews. We offered it to CONTRACTOR, a national trade magazine for plumbing and mechanical contractors. Their editor liked it and published it this week. You can read it here: The Review Reply Most Contractors Never Send. The editor also told us it may run in their printed September magazine.

That is an editorial backlink, the most trusted kind: a real publication chose to link to us inside a real article.

Notice what we did not do. We did not buy anything. We did not trade anything. We wrote something genuinely useful for their readers, and the link back to our site came as a natural part of publishing it. That backlink now tells search engines, and every AI system that reads the web, that a national trade publication found our expertise credible enough to feature.

Do Backlinks Matter for AI Search Too?

Yes. AI systems like ChatGPT and Google's AI Overviews pick their sources the same basic way search engines pick rankings: they favor companies that authoritative websites mention and link to. Backlinks and brand mentions feed AI visibility.

This is the part most site owners have not heard yet. When someone asks an AI system "who should I call to fix my water heater," it does not pick a name out of a hat. It leans on the same web of published content, backlinks, and authority signals that search engines use to determine credibility. Companies that share valuable content and earn a brand mention on real sites get cited. Companies that are invisible on the web stay invisible in AI answers too. We covered the steps in detail in our guide on how to show up in AI search results.

How Do You Check Your Backlinks?

You can check your backlinks free with Google Search Console, or use a paid backlink checker like Semrush, Ahrefs, or Moz's Link Explorer. These tools report your referring domains, anchor text, and an authority score for each source.

Google Search Console shows which external sites link to your pages at no cost. Tools like Semrush and Moz add metrics: how many referring domains you have, which links are dofollow, and how your backlink profile compares to competitors. Analyzing competitors this way also reveals link building opportunities: if three websites link to a rival's guide, they might link to a better one from you.

While you are in there, watch for broken links. Broken backlinks point at pages that no longer exist, so the authority they pass gets wasted. Fixing broken pages, or asking the site owner to update the link, is an easy win. Some SEO pros build a whole tactic around this called broken link building: find broken links on other sites and suggest your relevant content as the replacement.

What Does This Mean for Your Company?

It means the blog posts on your website are not decoration. They are the raw material that earns credibility, backlinks, higher rankings, and AI citations. Every useful article you create is a chance for another web page to reference you, and every new backlink strengthens your online visibility.

Here is the simple playbook we follow for our own site and for our clients:

• Create quality content on a steady schedule. Answer the real questions your audience asks.
• Make it worth referencing. Direct answers, original data, and honest advice attract backlinks. Thin, generic filler does not.
• Pitch your best pieces to publications your buyers and peers read. Trade magazines, local news, and industry blogs all need good material. Guest posts on other websites work the same way.
• Never buy backlinks. Natural backlinks beat paid placements every time. Search engines punish manipulative shortcuts.

This is the same process behind everything we build for clients, from digital marketing for service businesses to reputation growth. Content earns credibility. Credibility earns backlinks. Backlinks earn higher rankings and new customers.