SpamBrain and AI Link-Spam Detection: How Google Catches Schemes in 2026
THE SHORT VERSION → SpamBrain neutralizes spammy links rather than penalizing them — it silently switches off the ranking they...
Google’s Site-Reputation-Abuse Policy: A Compliance Guide for Link Builders
THE SHORT VERSION — Site reputation abuse is not a content-quality rule — it is an intent-and-independence rule. Google cannot...
Parasite SEO in 2026: Why It’s Failing and the Site-Reputation Risk It Creates
TL;DR • Parasite SEO — publishing on a high-authority third party to borrow its rankings — is not "risky" in...
Synthetic Control Methods for Measuring a Single Campaign’s Impact
TL;DR — Your biggest campaigns are your hardest to measure: one national PR hit, one flagship page, one target market....
Bayesian Forecasting of Link Building Outcomes
TL;DR — Link building is a small-data, high-uncertainty decision problem — a quarter’s campaign is a dozen links, not a...
Causal Inference for SEO: Difference-in-Differences for Backlinks
TL;DR — Backlinks are a staggered treatment: links land on different pages at different times. That single fact breaks the...
Media-Mix Modelling for Earned Links and Digital PR
TL;DR. Media-mix modelling (MMM) is the one measurement method that can finally put earned links and digital PR on the...
Geo Holdout Experiments: A Practical Design for Link Campaigns
TL;DR. A geo holdout experiment splits your regions into treatment and control, runs the campaign in the treatment regions only,...
Incrementality Testing for Link Building: Proving Links Caused the Lift
TL;DR Correlation is not proof. Rankings that rise after links land might have risen anyway. Incrementality testing is the discipline...
Link Building in Francophone Africa: A Distinct Market Playbook
TL;DR Francophone Africa is treated, in most English-language SEO literature, as a subset of “Africa.” That framing is a strategic...