Link Building Cost: Agency vs Software vs DIY, Per Link

The most recent published data puts an agency-built link at roughly $400 to $700. Buying a placement directly from a site owner runs roughly $80 to $360, and DIY outreach costs whatever your hours are worth. A 2025 BuzzStream survey of about 70 agency leaders and freelancers found an average of $597 per link: $663 for agencies and $416 for freelancers (BuzzStream). Software sits between agency and DIY. You pay a subscription and do less of the work yourself, so what each link costs you depends on how many links you win.

These figures come from different studies that measure different things, so each one below is labelled with its source and with what the money buys. Our own prices, laid out next to these, are on the link building pricing page.

What a link building agency costs

Agencies charge by the month, by the link, or both. The most detailed recent breakdown we found is the BuzzStream survey, which puts the average monthly contract at $5,458. Half of retainers are priced below $5,000 a month, and 38% fall between $5,000 and $10,000 (BuzzStream).

The tactic decides most of what you pay per link:

BuzzStream notes that these are category-weighted midpoints rather than strict averages, and the sample is small. A second survey lands in the same place. Editorial.Link asked 518 SEO professionals what they'd consider an acceptable price for one high-quality backlink, and the average answer was $508.95 (Editorial.Link). That figure is what people say they would pay, not what they were invoiced, but it falls inside the same band.

The same survey found that 55.98% of respondents outsource at least part of their link building. For people who do this professionally, paying someone else for links is the norm.

What buying a link directly costs

On paper, the cheapest route is to skip the agency and pay a site owner directly. Ahrefs tested this by contacting site owners and asking to buy placements. For niche edits (a link inserted into an existing article), they reached out to 450 sites, and 12.6% agreed to sell at an average price of $361.44. Paid guest posts averaged $77.80 (Ahrefs, last updated July 2024).

Read the policy before you call that a bargain. Google lists "buying or selling links for ranking purposes" as link spam and says paid links are only acceptable when qualified with rel="sponsored" or rel="nofollow" (Google Search Central). A sponsored link is built to pass no ranking credit. So the real price of a paid dofollow link includes the risk you take on, and that risk isn't on the invoice.

What link building software costs

Software works the other way round on price. You pay a fixed subscription and the tool takes on part of the work: finding prospects, finding contacts, drafting, sending, following up, checking. Your cost per link is simple arithmetic, so work it out before you buy anything:

cost per link = monthly subscription ÷ links won that month

Here's the formula with made-up numbers. A $99 subscription that wins three links in a month comes to $33 a link. If it wins one link, that link cost $99, and if it wins none, you've had an expensive month. Nobody can promise you a number of links, including us. That depends on your site, your niche and whether an editor wants what you're pitching, so be suspicious of any vendor that quotes a guaranteed link count.

The other variable is your time. Even when a tool does the research and drafting, you still have to read and approve what goes out, so count those hours when you compare it with an agency.

What DIY link building really costs

DIY looks free, but you pay for it in hours: finding pages, finding the right person, writing a pitch about their page instead of about you, following up, and checking whether the link went live. One practitioner in an r/SEO thread about link costs put the floor this way:

"If you're doing link building yourself, you can get your cost of acquisition as below $20 / link once you really streamline your link building process." (u/Creative_Chedda, r/SEO)

Notice the phrase "once you really streamline." Your first twenty links will take far more time than your next twenty. To price your own time, look at what people get paid for this work. A 2026 hiring post in r/bigseo for a Digital PR and link building contractor on a B2B SaaS client listed £50 to £70 an hour (r/bigseo). That's one listing, not a market rate, but it's a useful check on the idea that doing it yourself costs nothing.

Directory submission: the cheapest link, and a different job

Directory submission is the only link building tactic with fixed, one-time pricing. BacklinkBot's done-for-you service costs $99 for 100+ directories, $167 for 200+ and $357 for 300+, all submitted by hand. At the Starter tier you pay under a dollar per submission.

Comparing that number to a $600 editorial link doesn't tell you much. Directory listings are foundational links: they get a new site indexed, give it its first referring domains, and put it on the platforms buyers browse. An editorial link on a ranking article does a different job. Most sites need both, and the directories come first. Our post on how to set a backlink building budget covers the order.

Side by side

The case that cost per link is the wrong number

The strongest objection to this whole comparison is that a cheap link and an expensive link are different products, so dividing price by count tells you very little. An SEO with eight years of client work put it bluntly in a 2026 r/SEO thread:

"Eight years of client SEO tells me $250 links rarely move rankings. They are usually placements on pages nobody reads, sold by people who sell links for a living." (u/kemalios, r/SEO)

An older thread shows the extreme case. A site owner said they were paying €12,000 a year for banner links on six sites owned by one person, and had been told that stopping would "badly hurt my seo" (u/Silly-Sun123456, r/SEO). The top replies said it was not worth it.

We agree with most of this. Cost per link only means something when the links are comparable, and for any link you should ask whether real people read the page it sits on. Where we disagree is on throwing the number out entirely, because founders still have a budget. Comparing routes per link is how you notice that a $5,000 retainer and a $99 subscription are priced for different situations. Use cost per link to shortlist, then judge each link by the page it lives on.

How to choose by stage

• If your site is new and under DR 20, start with a curated directory batch for foundational links, then pitch a handful of ranking pages yourself.
• If you have some traction but no time for outreach, use software that finds ranking pages and drafts pitches for you to approve. Your cost per link stays low and you keep your week.
• If you're funded and in a competitive niche, an agency retainer can make sense. Read how to vet a backlink agency before you sign, and ask to see live examples.

Backlink agency vs DIY goes through the trade-offs in more detail.

FAQ

How much does a single backlink cost?

It depends on the route. A 2025 BuzzStream survey found agencies average $663 per link and freelancers $416. Ahrefs found that site owners willing to sell charged an average of $361.44 for a niche edit and $77.80 for a guest post. Paid links like these break Google's policy unless they're marked sponsored.

Why do link building agencies charge monthly retainers?

Outreach is ongoing work and the results are hard to predict, so agencies price the effort rather than promise a set number of links. BuzzStream's survey put the average monthly contract at $5,458. Ask any agency how many live links a typical month produced for a client like you, and on which pages.

Is cheap link building always bad?

Not always. One practitioner on r/SEO said DIY outreach can get below $20 a link once your process is tight. Buying links at that price is different. Another commenter in the same thread said that at $20 per link "you're buying PBN links." The price won't tell you which of the two you're getting.

How much should a startup spend on link building?

Start smaller than you think. Run a one-time directory batch for foundational links, then a few months of outreach to ranking pages. You'll see what works in your niche before you commit to a retainer. Our guide to setting a backlink building budget breaks this down by stage.

Price the route, then judge the page

You can plan with the published numbers. An agency charges about $600 a link. Buying links directly costs a few hundred and carries policy risk. DIY costs your own hours. In every case, whether the money was well spent depends on the page the link lands on. Open a spreadsheet and list each route you're considering, with its cost and the pages you'd expect to land on. Then compare BacklinkBot's link building pricing. One-time directory packages start at $99. If you want outreach to ranking pages, the SEO agent is $99 a month, and it sends nothing until you approve it.