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Dofollow Digest #59: The March 2026 Updates Drew a Clear Line on Links

Dofollow Digest #59: The March 2026 Updates Drew a Clear Line on Links

Eric Carrell
March 27, 2026

Hey, it's Eric 👋

Busy week. Google dropped a spam update Tuesday, wrapped it in under 24 hours, then launched a full core update this morning. If your rankings have been moving around, that's why.

The spam update is the more interesting one for this audience. It didn't just shuffle rankings. Post-update analysis suggests it specifically recalibrated how certain link categories are weighted. The details are worth understanding, because the pattern is useful regardless of whether your site was directly affected.

📣 Build authority with links that actually hold weight

This update made one thing obvious. A lot of links that used to work… don’t anymore. The gap between “looks good on paper” and what actually holds up just got wider.

That’s the gap we work in. High-DR placements (70–90+) on sites that are genuinely relevant to your space and built to last beyond updates like this.

If you’re curious what that looks like in practice, get in touch here.

🔍 DEEP DIVE: The March 2026 Updates Drew a Clear Line on Links

Google's March 2026 spam update completed in roughly 19 hours, one of the fastest rollouts on record. That speed suggests targeted enforcement rather than a broad recalibration, and post-update analysis from practitioners tracking before-and-after performance points to three specific link categories that took hits.

The first is sponsored guest posts on generalist high-DA sites: publications that cover tech, finance, lifestyle, and business under one domain, publishing commercial placements across unrelated verticals. The second is niche edit placements on aged thin-content domains: inserting links into older articles on sites with low engagement and high outbound commercial link ratios. The third is PBN links, including networks that had invested in better content to survive previous updates. In those cases, the detection vector appears to be footprint analysis rather than content quality: hosting patterns, registration data, and linking behavior, which means improved content wasn't enough to protect them.

What survived, and in some cases strengthened, is the short list you'd expect: editorial citations from original research, digital PR links from topically relevant publishers covering genuine news, and links associated with authors who have verifiable expertise and institutional affiliations.

These aren't new signals. Google has been communicating this direction for years. What the March update did was close the gap between what Google said it rewarded and what it actually rewarded. Links that had continued to work despite years of warnings now face a harder enforcement environment.

The through-line across all three devalued categories is the same. They represent links that were acquired rather than earned. A generalist publication linking out commercially across ten unrelated verticals isn't an editorial endorsement; it's inventory. An aged domain with thin content and a high ratio of commercial outbound links isn't a trust signal; it's a link farm with better formatting. Google's systems are now better at distinguishing the two, and the March update appears to have applied that distinction at scale.

What this means for SaaS companies:

The update creates a useful forcing function for auditing your existing link profile. Three specific things worth checking:

1. Where your high-DA links actually come from. If a significant portion of your referring domains are generalist publications that cover multiple unrelated verticals, those links may now carry less weight than their domain rating suggested. The question isn't whether the site has high DA. It's whether the site is a genuine authority in your software category or just a high-volume commercial publisher.

2. Whether your link velocity is topically concentrated. The update specifically rewarded links from topically relevant publishers. For SaaS companies, that means industry trade publications, software review outlets, and category-specific media, not general business or technology aggregators. If your recent link acquisition has been broad rather than vertical-specific, that's worth reorienting.

3. What your original research pipeline looks like. The clearest survivor category in this update was editorial citations earned through original data. For SaaS companies this is a structural advantage: you have product usage data, customer behavior data, and category benchmarks that journalists and industry publications will cite if you surface them. That's the type of link that held up through March and will hold up through whatever comes next.

The update didn't change the fundamentals. It just made the gap between durable and disposable links more expensive to ignore.

🔗 LINK ROUNDUP

Til next time,

Eric