What Are Backlinks? How They Work and Which Ones You Control

At a glance

• A backlink is a link on another website that points to a page on your website.
• Google says it uses links to work out what pages are about and which are most helpful, and PageRank is still one of its core ranking systems (Google, fetched 2026-10-28).
• When most pages on a topic say the same thing, links are what separates them in competitive search results.
• The useful way to sort backlinks is by who controls them: earned, asked-for, paid or owned.
• Paid links are the risky option, and paid PBN links are the riskiest. Links from blogs you own are the only ones nobody else can take away.
• You can see the backlinks Google has found for your site for free in the Links report in Google Search Console.

What is a backlink?

A backlink is an ordinary HTML link. It only becomes a “backlink” when you look at it from the side of the site it points to. Here is one:

<a href="https://example.com/winter-tire-guide/" rel="nofollow">winter tire guide</a>

It has four parts worth knowing:

Part	In the example	What it means
Linking page	The page this code is on	The page giving the link. Its topic, quality and own links shape what the link is worth.
Target URL	https://example.com/winter-tire-guide/	The page receiving the link. That page, not your whole site, gets the backlink.
Anchor text	winter tire guide	The clickable words. They describe the target page to readers and search engines.
Attributes	rel="nofollow"	Optional qualifiers. A link without them is a normal link. nofollow, sponsored and ugc tell Google the link is qualified.

You will also see backlinks called inbound links, incoming links or external links pointing to you. Tools count them in two ways: the number of individual links, and the number of referring domains (distinct websites linking to you). Ten links from one site is one referring domain, and referring domains are usually the more telling number.

Backlinks vs internal links vs outbound links

The same <a href> tag gets three names depending on where it starts and ends:

• A backlink comes from another website to yours. You don’t place it on your own site, which is the point.
• An internal link goes from one page on your site to another page on the same site. Internal links help readers and crawlers move around, and they spread the value your site already has to the pages you choose.
• An outbound link goes from your site to someone else’s. Every outbound link you place is a backlink for the site you link to.

So when people search for “adding backlinks to your website”, the answer is that you can’t add a backlink on your own site. You add internal and outbound links there. A backlink has to sit on another site, which means someone has to place it: a writer who liked your page, an editor you pitched, a site owner you paid, or you, on a site you own.

Do backlinks still matter in 2026?

Yes. Google’s own documentation still describes links as part of how it ranks pages. Its guide to ranking systems says: “We have various systems that understand how pages link to each other as a way to determine what pages are about and which might be most helpful in response to a query. Among these is PageRank, one of our core ranking systems used when Google first launched.” (Google Search Central, fetched 2026-10-28.)

Our own reasoning is more practical. Look at the first page for almost any commercial keyword and you’ll see the same structure, the same subheadings and the same advice. Everyone uses the same content tools and the same AI models, so everyone writes very similar content. Good content has become the entry ticket, and once every page on the first page has it, links are what decides the order.

Links don’t replace relevance. A page that doesn’t answer the search won’t rank whatever links it has. But in a niche where several pages answer it well, the page with the stronger, more relevant links usually wins.

What makes one backlink worth more than another

Two links can look identical in a spreadsheet and be worth very different amounts. The main factors:

• Relevance: a link from a site about your topic counts for more than one from an unrelated site. A plumber’s link from a home-repair blog beats one from a gaming forum.
• The linking page’s own strength: a page that has links pointing to it, and gets visitors, passes more than an orphan page nobody links to.
• Placement: a link inside the body of an article, in a sentence that explains why it’s there, is worth more than one in a footer, sidebar or author bio.
• Anchor text: descriptive, varied anchors read naturally. The same exact-match keyword on every link reads as manufactured.
• Attributes: a normal link passes the most. A link marked nofollow, sponsored or ugc is qualified, and Google may give it less weight or none.
• Staying power: a link that disappears next month is worth nothing next month.

For the full checklist, read our guide on what makes a good backlink. The attribute question gets its own explainer on dofollow vs nofollow links.

The control spectrum: earned, asked-for, paid, owned

Most guides list backlink “types” by where they appear: guest posts, directories, editorial links, forum links. That tells you little about what a link costs you or whether it will still be there next year. A more useful question is who controls the link once it exists.

Link type	Who controls it	Cost	Speed	Risk	Can it disappear?
Earned (someone links because they found your page useful)	The other site’s editor	Your time making something worth linking to	Slow and unpredictable	Very low	Yes, when they edit or delete the page, and you won’t be told
Asked-for (outreach, guest posts, partner and supplier links, reviews of tools you use)	The other site’s editor, after you persuade them	Time, sometimes a free product or a written article	Weeks per link	Low if the site is real and relevant	Yes, at the editor’s discretion
Paid (link insertions, sponsored posts, bought PBN links)	The seller	Money, per link, often recurring	Fast	High. Google’s spam policies name buying links. Sellers resell the same pages to anyone.	Yes, when you stop paying, the seller sells the site, or the network gets found
Owned (your own blogs, usually on expired domains with existing links)	You	Domains, hosting and content	Weeks to set up each blog	Depends on how well you hide the network	Only if you take it down or the blog gets deindexed

Earned links are the best links you can get and the ones you can least plan for. Asked-for links are where most legitimate link building happens: you do the work, someone else makes the final call. Our guide on how to create backlinks walks through the methods that don’t cost money.

Paid links are where we disagree with most of the pages ranking for this keyword, several of which are written by link sellers. Buying links is fast, but you are renting a placement from someone who can remove it, flag it as sponsored, or sell the same page to your competitors. Bought PBN links are the worst version of this. The P in PBN stands for private. A network that sells links to anyone is a public network, and public networks are much easier for Google to find and penalize. Don’t buy PBN links.

Owned links come from a private blog network: a group of blogs you control, usually built on expired domains that still have links from their previous life. Here is the classic example. A plumber in your town retired years ago and let his domain expire. The local papers had featured him, so the domain still has those links. You register it, build a plumbing blog on it, and because most of the old links are still live, the blog keeps much of the authority the previous owner built. A link from that blog to your client’s site is one you place, with the anchor and the topic you choose, and nobody else can remove it. If you go this route, host your own blogs on Easy Blog Networks, which puts each blog with a different big-brand hosting provider so the network doesn’t share a footprint.

Owned links are against Google’s guidelines, as are paid links and, strictly read, a lot of outreach. Google’s guidelines serve Google. We think a network you build and keep private is grey hat at worst, because every site in it is your own property. The tradeoff is the upfront investment of time and money, which is why most sites mix owned links with earned and asked-for ones rather than relying on one source.

How to see your backlinks

Google Search Console has a free Links report that shows the sites linking to you, your most linked pages and the most common anchor text, based on the links Google has found. Third-party tools like Ahrefs, Semrush, Majestic and Moz run their own crawlers and also let you look at sites you don’t own. Our guide on how to check your backlinks walks through each one.

FAQ

What is a backlink in SEO, in one sentence?

A backlink is a link on another website that points to a page on your site, which search engines treat as a signal about that page.

Which backlink is most powerful?

A followed link, placed in the body of a relevant article, on a real site in your niche that has its own visitors and its own links. One of those is worth more than dozens of links from unrelated directories or comment sections.

How many backlinks do I need?

There’s no fixed number. It depends on how many relevant referring domains the pages you’re trying to outrank have. Count theirs and you’ll have a realistic target.

Are backlinks the same as link building?

No. Backlinks are the links themselves. Link building is the work of getting them, through any of the four routes in the control spectrum above.