Link building for SaaS, by growth stage

Stage decides everything

Almost every guide to link building for SaaS is written as though there is one correct approach. There is not. The same $3,000 a month is either reckless or negligent depending entirely on how many pages you have that would rank if they had authority.

The four stages below are defined by that question, not by funding round — a bootstrapped company with twenty good pages is at “Series A” for these purposes, and a well-funded startup with three thin pages is pre-PMF regardless of what is in the bank.

Pre-product-market fit

You do not yet know which pages matter, so any authority you build lands on pages you will delete. The failure mode here is not wasted money — it is the quarter spent waiting for links to work instead of talking to customers. If someone is selling you a retainer at this stage, they are selling you a delay.

What to do instead: Publish the three pages you would need if you did rank: your main comparison page, one alternatives page, and honest documentation. They cost nothing and they are what a later programme will point at.

Seed / early revenue

You have a product and a couple of pages worth ranking, but not enough budget to move a competitive term. Spreading $2,000 across eight cheap links achieves nothing measurable. Concentrating it on three good ones pointed at a single page can move a long-tail term into the top five.

What to do instead: Pick one page. Buy three to four editorial placements a month at $500–$750 pointed at it. Ignore domain-wide metrics entirely and watch referring domains to that one URL.

Series A / scaling

This is where 46.5% of buyers sit, and where an agency genuinely earns its margin — publisher relationships you cannot build in-house at this budget, and enough volume to move competitive terms. It is also where the most money is wasted, because the budget is large enough to hide poor quality for two or three quarters.

What to do instead: Split the budget: roughly 70% editorial placements for predictable volume, 30% digital PR for authority and AI citation. Insist on referring domains per target page in the monthly report, not domain-level totals.

Scale / category leader

At this level, buying links one at a time stops making sense — you are paying an ever-rising per-unit price for an asset that decays. 18% of buyers spend above $10,000 a month, and the ones getting value are usually funding original research and free tools alongside placements.

What to do instead: Move a third of the budget into linkable assets — original data, a free tool, an industry benchmark report. They cost nothing per link after launch and they are what AI answer engines cite repeatedly rather than once.

The mistake that repeats at every stage

Buying domain authority instead of page authority. Agencies report on domain-level referring domains because it is the number that always goes up. It is also the number least connected to whether your comparison page outranks your competitor's.

Rankings are decided page by page. A hundred links to your blog do very little for a pricing page three clicks away. Ask for referring domains to the target URL in every monthly report, and treat any reluctance as informative.

Once you know your stage and budget, the cost calculator will tell you how many links that actually buys at market rates, and the comparison table shows which agencies operate at your level — four of them publish a minimum, so you can rule yourself in or out without a call.

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