How Many Backlinks Does a SaaS Site Need to Rank?

Everyone wants a number. You type "how many backlinks does a website need" into Google, get a wall of "it depends" answers, and close the tab more confused than when you started. The honest truth is that no single universal number exists, but there is a repeatable method to find your number by reverse-engineering the exact search results you want to beat. This guide walks you through that method step by step, then turns the answer into a realistic monthly link plan for your SaaS site.

Key takeaways

• There is no fixed backlink count that ranks every page. The right number depends on the specific keyword, the competition, and your current authority.
• The metric that matters most is referring domains (unique sites linking to you), not raw backlink count. Ahrefs found referring domains is the backlink factor that correlates most strongly with rankings.
• You find your target by studying the top-ranking pages for your keyword, counting their referring domains, and running a link gap analysis.
• Acquire links at a steady, natural pace. Top-ranking pages tend to add new referring domains at roughly 5% to 14.5% per month.
• For SaaS, 10 relevant, high-trust links usually beat 100 weak ones. Quality wins the ranking and protects you from penalties.

Why the "magic number" is a myth

If a guide tells you "you need 50 backlinks to rank," walk away. Ranking is relative, not absolute. Google decides who ranks for a given query by comparing the pages competing for it, so the bar is set by your competitors, not by a universal threshold.

Two pages can both target a keyword with wildly different link needs. A page chasing "best CRM software" sits in a brutal, money-heavy SERP where the top results carry thousands of referring domains. A page targeting "CRM for solo real estate agents" might rank with a handful of solid links because almost nobody is competing hard for it.

It also depends on what you already have. A site with strong existing authority can push a new page up with far fewer new links than a brand-new domain can. So the real question is never "how many backlinks does a website need" in the abstract. It is "how many referring domains does my page need to beat these specific pages for this specific keyword."

One more reality check before you obsess over link counts: backlinks are necessary but not sufficient. Ahrefs analyzed over 900 million pages and found that 96.55% of them get no organic traffic from Google, often because of weak links and targeting keywords nobody searches or that the page does not deserve to rank for. Links amplify a page that already matches intent. They cannot save one that does not. If you are still deciding whether links are worth the effort at all, start with whether backlinks still matter for SaaS SEO.

Step 1: Read the SERP you actually want to win

Open a private browser window and search your target keyword. The results on page one are your benchmark. These are the pages Google has already decided deserve to rank, so they tell you the price of admission.

Now you need data on each of them. Pull up the top 5 to 10 organic results (skip ads and big aggregators like G2 if your page can't realistically compete with them) and gather, for each one:

• Referring domains to that exact URL (not just the whole site)
• Domain Rating or Domain Authority of the site
• Estimated organic traffic to the page
• The type of page it is (blog post, comparison, product page, listicle)

You can get referring-domain counts from Ahrefs, Semrush, or Moz. If you don't pay for a tool yet, there are free and freemium ways to check site and page traffic that get you close enough to plan. Focus on referring domains per page, because that is the strongest backlink correlation with rankings according to Ahrefs, more so than total backlinks or DR alone.

Step 2: Find the realistic target, not the average

Once you have the numbers, do not just average them. Averages get skewed by one giant outlier sitting at position one. Instead, look at the range and find the floor.

Say the top results for your keyword have these referring domains to the ranking page:

Position	Referring domains	Page DR
1	180	78
2	45	61
3	38	55
4	22	49
5	19	44

Position one has 180, but positions four and five rank with around 20. That tells you the realistic entry point to crack page one is closer to 20 to 40 referring domains, not 180. You can aim to slot in at position four or five first, then keep building.

This is the number that matters: not "how many backlinks to rank number one" but "how many referring domains gets me onto page one so I start collecting traffic and trust." Set that as your target, then revisit it as you climb.

Step 3: Run a link gap analysis

A link gap analysis (called Link Intersect in some tools) shows you which sites link to your competitors but not to you. It turns your target number from a guess into a concrete to-do list of real sites to pursue.

Here is the practical version:

1. In Ahrefs or Semrush, open the Link Gap / Link Intersect tool.
2. Enter 2 to 4 of the competitors ranking for your keyword.
3. Enter your own domain in the "but doesn't link to" slot.
4. Sort the results by how many of your competitors each site links to.

Sites that link to three or four of your competitors are warm prospects. They clearly link to content in your space, so they are realistic targets for a guest post, a niche edit, or digital PR. The size of this list, filtered to sites you could plausibly earn or buy a link from, tells you whether closing the gap is a quarter of work or a year of it.

Step 4: Adjust for keyword difficulty and your own authority

Two variables move your target number up or down.

Keyword difficulty. Tools assign a difficulty score, but the cleanest read is the referring-domain spread you already gathered. Tight, high-DR competitors with hundreds of links mean a hard keyword. A messy SERP with thin pages and few links is a soft target you can win cheaply. If a keyword is genuinely out of reach today, pick an easier, lower-volume variation first. Ranking for ten "easy" keywords often beats failing at one hard one, which is part of building topical authority for a SaaS site.

Your current authority. A page on a DR 60 site with a deep internal-link structure inherits trust that a DR 15 startup site doesn't have. The stronger your domain, the fewer new links a given page needs. If your domain is young, expect to need more links per page, and prioritize growing your overall domain authority alongside page-level links. Where your company sits also changes the math, which is why link-building strategy shifts by company stage.

Step 5: Mind your link velocity

Link velocity is how fast you acquire new links. It matters because an unnatural spike can look manipulative. Going from zero to 80 links in a week on a brand-new page is a pattern Google's spam systems are built to notice.

The reassuring news is that natural growth is not slow. Ahrefs found that most #1-ranking pages gain followed backlinks from new referring domains at a pace between roughly +5% and +14.5% per month. So steady, consistent acquisition is exactly what winning pages do. You don't need to crawl, you just need to avoid one giant unnatural burst followed by silence.

In practice, a smooth ramp of a handful of quality links per month per priority page looks far more natural than a one-time dump. For the full breakdown of safe pacing, see our guide on how many backlinks per month is safe.

Why 10 good links beat 100 weak ones

This is where SaaS teams waste the most money. It is tempting to treat your target number as "buy this many links as cheaply as possible," but that backfires.

Cheap links cluster on low-quality sites: PBNs, link farms, and pages with no real traffic. Ahrefs noted that 1,000 followed referring domains from DR 0 sites are unlikely to help a page rank at all. So 100 of those can do less for you than 10 links from real, relevant, trafficked SaaS and marketing sites. Worse, a profile stuffed with junk raises your risk under Google's link spam policies.

When you build your target list from the gap analysis, weight it toward relevance and real traffic, not vanity DR. We break down the trade-off in detail in cheap backlinks vs quality backlinks. The short version: your "number" should be a count of quality referring domains, not a count of any links you can find.

Step 6: Turn the target into a monthly plan

Now make it concrete. Say your gap analysis says a priority page needs about 25 new referring domains to crack page one, and you have zero today.

Here is a sane way to plan it:

• Decide a timeline. Spreading 25 links over 5 to 6 months keeps velocity natural and budget manageable. That is roughly 4 to 5 quality links per month for that page.
• Mix link types. Blend guest posts, niche edits, and a few earned editorial links so the profile looks organic rather than uniform.
• Set a budget. If quality SaaS-relevant links run a few hundred dollars each, 4 to 5 per month gives you a clear monthly number. Pricing varies a lot, so sanity-check against real link-building cost benchmarks.
• Track and reassess. After 2 to 3 months, re-check the SERP. If competitors are also building, your target may rise. Adjust rather than assume the original number is final.

This is the difference between "I need backlinks" and an actual operating plan. The number stops being a vanity total and becomes a budget line with a timeline behind it.

The bottom line

The answer to "how many backlinks does a website need" is never a single number you can copy from a blog post. It is a number you calculate from the SERP you want to win: count the referring domains of the pages already ranking, run a gap analysis, adjust for your own authority, then acquire quality links at a natural pace until you close the gap.

Once you know your target and your monthly cadence, the next job is sourcing those links efficiently from real, vetted sites. That is exactly what Saaslinks is built for, and if you want the full playbook behind all of this, start with our complete guide to SaaS link building.