The short version: a backlink is any HTML link from another website’s page to yours, and what counts to Google depends on the link’s rel attribute, whether the page gets crawled, and whether the linking domain has any real authority. Not every mention of your brand is a backlink, and not every backlink is worth having. I have pulled backlink reports for clients with 4,000 “referring domains” where fewer than 200 were doing anything at all.
Worth reading next: What Is a Backlink in Off Page SEO? A Plain Explanation With Real Numb.
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What a backlink is, in plain English
A backlink is a hyperlink on someone else’s website that points to a page on yours. That is the whole definition. Google’s crawler finds that link, follows it, and treats it as a small vote that your page is worth something. More votes from more trusted sources generally means better rankings, though “generally” is doing a lot of work in that sentence and I will come back to why.
People get confused because Google Search Console, Ahrefs, and Semrush all use slightly different counting rules, and none of them show you exactly what Google’s algorithm weighs internally. So when someone tells you they have “10,000 backlinks,” ask which tool counted them and whether that includes nofollow links, because the number is almost always inflated.
The four types of link attributes, and why they matter
Since 2019, Google has recognised three specific rel attributes on top of the original nofollow tag, and each one signals something different:
- Dofollow (no attribute at all): the default. This passes full ranking value, sometimes called “link equity” or the old term “PageRank.”
- rel=”nofollow”: tells Google not to pass ranking credit through the link. Wikipedia uses this on every outbound link, which is why linking from a Wikipedia page does almost nothing for your rankings even though it looks impressive.
- rel=”sponsored”: for paid links, affiliate links, or anything you got in exchange for money or product. If you paid for a placement, this is the attribute that should be on it.
- rel=”ugc”: for user-generated content, like a link someone drops in a blog comment or forum post. Most comment platforms add this automatically now.
Google has said publicly, including through Search Advocate John Mueller, that it can still choose to treat nofollow, sponsored, and ugc links as “hints” rather than strict directives, meaning it might still crawl through them and occasionally factor them in. But the safe assumption for planning purposes is that only clean dofollow links reliably pass ranking value.
Real examples of what counts as a backlink
Here is the part most explainers skip: actual examples, not theory.
- A guest post you wrote for a marketing blog, with a dofollow link back to your homepage in the author bio or body text. This counts, and it is one of the most common link-building tactics still working in 2026.
- A journalist quoting you in a trade publication and linking to your website as the source. I get these fairly regularly through HARO-style requests and through journalists finding my work on making money online and citing it. These tend to be high-authority and dofollow by default.
- A business directory listing, like Clutch, Yell, or a local chamber of commerce site, with your website URL. These count but usually carry low individual value because thousands of other businesses have the same type of listing.
- A resource page link, where another site lists “useful tools for small business owners” and includes yours with a link. These are gold when the resource page itself has decent authority, because the link sits in a relevant context.
- A broken link replacement, where you find a dead link on someone’s resource page, offer your working page as a replacement, and they swap it in. This is slow, manual, unglamorous work, and it is one of the few link-building tactics Google has never penalised because it produces a real, editorial link.
- A blog comment with a link in your name field or body, almost always tagged rel=”ugc” now, which means it counts as a link that exists but rarely passes meaningful ranking value.
What does NOT count, even though people think it does
This is where most explanations get lazy, so let me be specific.
- A Facebook post, LinkedIn post, or tweet linking to your site. These are almost always nofollow by default on the platform level, and social platforms are largely walled gardens that search crawlers cannot fully index anyway. Social shares can drive traffic and can indirectly lead to other sites linking to you, but the social link itself is not a meaningful backlink.
- A link on a page blocked by robots.txt or one that requires a login to view. If Googlebot cannot crawl the page, it cannot see the link, so it does not exist as far as ranking is concerned.
- A link inside a JavaScript-rendered element that Google fails to render. Google has got much better at rendering JavaScript since around 2018, but it is not perfect, and heavily scripted single-page apps still lose links that a human eye would see fine.
- A brand mention with no link at all. If a podcast says “check out Lilach Bullock’s website” but the show notes do not include a clickable URL, that is a mention, not a backlink. Google can sometimes associate unlinked mentions with your brand through entity recognition, but it is not the same signal and it does not directly move your rankings the way a real link does.
- A link from your own website to another page on your own website. That is an internal link, not a backlink. Internal links matter for a different reason, mainly helping Google understand your site structure and helping pages that get few external links inherit some authority from pages that get lots.
A real example from a client audit
A few years ago I ran a backlink audit for a UK consultancy client who was convinced their SEO agency had done brilliant work because their Ahrefs referring domains count had jumped from 90 to 4,100 in eight months. On paper that looks impressive. When I pulled the actual list and filtered it, here is roughly what we found:
- Around 3,400 of those “domains” were low-quality directory sites and scraped content farms with Domain Rating under 10, most set up purely to sell links in bulk packages.
- About 500 were nofollow blog comments and forum profile pages with no editorial context at all.
- Roughly 160 were genuine dofollow links from real websites with actual traffic and editorial standards.
- Fewer than 40 of those 160 sent any measurable referral traffic in Google Analytics.
The client had paid a monthly retainer for a “link building package” that produced 4,010 near-worthless links and 40 links that were doing a job. That is not an unusual story. It is close to the norm for cheap link building services sold on volume rather than quality, and it is the uncomfortable truth most people selling backlinks would rather you not think too hard about: the number of backlinks you have matters far less than the number of trusted, relevant, real-traffic domains linking to you. I have seen a single link from a well-known industry publication outperform 300 directory links combined, in terms of both rankings and actual people clicking through.
How to check whether a link counts, step by step
You do not need expensive software for a basic check. Here is what I do when someone sends me a link and asks “does this count”:
- Visit the live page in an incognito browser window and confirm the link is there and pointing to the correct URL, not a redirect to a dead page.
- View the page source (right click, “view page source,” or Ctrl+U) and search for your domain name to see the exact HTML around the link, including any rel attribute.
- Check robots.txt on the linking domain, at yourdomain.com/robots.txt, to see if the specific folder or page is blocked from crawling.
- Run the URL through Google’s mobile-friendly test tool or the URL Inspection tool in Search Console if it is your own site being linked to, which shows you exactly how Google renders and sees that page.
- Check Domain Rating or Domain Authority using a free trial of Ahrefs, Moz, or Semrush, plus estimated monthly organic traffic for the linking domain, because a nofollow link on a site with 200,000 monthly visitors can still be worth more in referral terms than a dofollow link on a site with 40 visitors.
Why this matters more than the theory
Backlinks used to be the single biggest lever in SEO, and for some queries they still are. But Google’s own leaked documents and public statements over the past few years have made it clear that relevance, user experience signals, and content quality now share the weight far more than they did in the early 2010s. I say this having lived through the shift myself while rebuilding an income stream from sponsored content that depended heavily on link value, and watching that value fluctuate as Google’s algorithm updates rolled through in 2023, 2024, and 2025. The blunt takeaway: chase fewer, better links from sites your actual customers already read, rather than chasing a bigger number on a dashboard. A blogger with 2,000 loyal weekly readers in your niche linking to your guide is worth more than fifty directory listings you will never think about again.
I have written more around this on the site: Week 7: The Income Stream That Saved My Business Three Times (And Why I’m Rebuilding It Right Now), How to make money online: 51+ real ways to make money online in 2026.
If you want your own numbers, use the free free backlink checker.
Frequently asked questions
Does a nofollow link count as a backlink at all?
Yes, it exists as a link and tools like Ahrefs will list it in your backlink profile, but Google treats nofollow, sponsored, and ugc links as hints rather than direct ranking signals, so they usually pass little to no ranking value even though they can still drive real click-through traffic.
Do social media links count as backlinks for SEO?
Generally no, because platforms like Facebook, LinkedIn, and X mark outbound links as nofollow by default and much of that content sits behind logins or dynamic pages that crawlers handle inconsistently, so treat social links as traffic and awareness tools rather than ranking signals.
How many backlinks do I need to rank?
There is no fixed number, because it depends entirely on your competition; some low-competition local pages rank with under ten decent links while competitive national terms can need hundreds of high-authority links, so the useful question is not “how many” but “are these coming from sites my competitors’ best links also come from.”
Is a brand mention without a link the same as a backlink?
No, an unlinked mention is not a backlink, though Google’s entity recognition systems can associate your brand name with topics even without a clickable link, so it may support your visibility indirectly without giving you the same ranking benefit as an actual dofollow link.
