Link building has an unusually high ratio of bad advice to good advice. Most of what gets sold as 'link building' either doesn't move rankings or actively hurts them. Here's what to avoid and what actually works.
The link building industry is full of services selling 'high DA' links for $50-200 each from networks of fake blogs, private blog networks (PBNs), and link farms. These links look good on paper — high domain authority, keyword-rich anchor text — but Google's algorithm identifies them reliably. A single manual action from Google for unnatural link patterns can tank your organic traffic 80-90% overnight and takes months to recover from via a disavow process and reconsideration request. The test: would the link exist if there were no SEO value in it? If the answer is no, it's a manipulative link and eventually a liability.
Publishing a post about SaaS marketing on a cooking blog to get a backlink is exactly the kind of link Google devalues. Relevance is a critical factor in link quality — a link from a relevant industry publication is worth 10x a link from an unrelated high-DA site. Guest posting still works for link building, but only when the host site is topically relevant to your industry, has a real audience (not just inflated DR from past link schemes), and the post is genuinely valuable for their readers. Before pitching a guest post, ask: 'Would this site's readers actually benefit from this content?'
A natural backlink profile has a distribution of anchor text: brand name, URL, 'click here,' 'this article,' and occasionally keyword-rich anchors. If 70% of your backlinks have exact-match keyword anchor text ('best CRM software'), Google's algorithms flag this as manipulation — because it is. Anchor text that occurs naturally in editorial links is almost never keyword-optimized. When doing outreach for links, don't prescribe anchor text. Let the publisher use their natural language. Your anchor text distribution will look natural, which is what Google rewards.
Most link building efforts point to the homepage — which already has the most authority on the site. The pages that need links to rank are your money pages: product pages, landing pages, and high-priority blog posts. A link to your homepage when your 'best CRM for startups' post is on page 3 does almost nothing for the post's ranking. Link building should be targeted: identify which pages you want to rank, identify what keywords they're targeting, and build links directly to those pages. Inner page links are harder to get but deliver more targeted ranking impact.
Digital PR — getting featured in publications through data-driven studies, expert commentary, and newsworthy content — is the most scalable and penalty-proof link building strategy available. A study with original data from your customer base, a contrarian take on an industry trend covered by a journalist, or an expert quote in a round-up article can generate 20-50 high-authority links from a single campaign. Most startups don't think of this as link building — they think of it as PR. It's both. Prioritize link-worthy content over pure outreach tactics.
Your competitors' backlink profiles are a roadmap of link opportunities. Every site that links to your competitor could potentially link to you. Use Ahrefs or Semrush to export competitor backlinks, filter for high-DR relevant sites, and identify which ones are link-able for you: publications that accept guest posts, resource pages that list tools, directories that list companies, and journalists who write about your category. This competitor analysis can surface 50-100 realistic link opportunities in a few hours of work.
Link building without tracking is like outbound without a CRM. You lose track of which sites you've approached, what the outcome was, when to follow up, and whether the link was actually placed. Use a simple CRM or spreadsheet: site name, DR, contact, date outreached, status (pitched / in progress / live / declined), and URL of the live link. Check weekly that promised links have been placed — some publishers accept the post and never publish it. Having a tracking system turns ad-hoc link building into a repeatable process.
Cactus insight: The most underrated link building strategy for startups is building genuinely link-worthy content and then doing minimal outreach — because the links come organically. Every original data study Cactus has helped clients publish has generated 15-50 unsolicited backlinks. You can't buy that quality. Invest in creating something worth linking to before you invest in link outreach.
Cactus Marketing audits and fixes broken marketing motions for B2B tech startups. We've seen every one of these mistakes — and we know exactly how to fix them.
Book a free 30-minute call — we'll identify what's broken and give you a fix.
Book a free strategy call →SEO Mistakes Killing Your SaaS Growth
Most SaaS SEO programs fail not because SEO doesn't work, but because they're executing the wrong strategy with the wrong expectations on the wrong timeline. Here are the mistakes that are reliably killing SaaS organic growth — and they're almost never about backlinks.
Content Marketing Mistakes for Startups
Most startup content marketing programs produce traffic that never converts and thought leadership that nobody reads. The problem is usually strategy, not execution — publishing content that feels right but doesn't connect to how buyers actually make decisions about your product.
Why Your Blog Gets No Traffic: Common Mistakes
You've published 30 blog posts and you're getting 200 visits a month. The problem isn't volume — it's strategy. Most blogs fail to get traffic because of three fixable problems: wrong keywords, no authority, and no distribution. Here's how to diagnose which one is killing you.
Keyword Research Mistakes
Bad keyword research doesn't feel like failure in real time — you write the post, it ranks on page 4, and you move on. The failure compounds invisibly as you build a content library of posts that never generate organic traffic. Here's how to catch keyword research mistakes before they cost you months of content production.