Advanced Link Training: Free Link Building Course by Bill Hartzer

X postBill HartzerResource

SEO veteran Bill Hartzer has released 'Advanced Link Training', a completely free link building resource containing 50 lessons across 9 modules and assessments of 34 link building tactics, requiring no signup or email submission.

Key points

  1. 50 lessons spread across 9 modules covering fundamentals, evaluating quality, prospecting, outreach, digital PR, measurement, and future trends.
  2. Evaluation of 34 distinct tactics across Earned, Outreach, and Placed acquisition methods, each graded by risk (Safe, Situational, High risk, Obsolete).
  3. Completely accessible with no email gate, signup form, or upsells.
  4. Supported by an empirical study of 20 years of Hartzer's own backlink data (1,301,839 links across 22,260 referring domains).
  5. Notable study findings: The median referring domain stops linking after 1,080 days, 97.4% of lost links disappeared while the source page remained live, and 69.3% of referring domains had a Trust Flow of 0.

Why it matters

Much of the existing educational material on link building is locked behind paywalls or marketing funnels, and often fails to address the inherent risks of specific tactics. A fully open, data-backed course with transparent risk grading helps practitioners navigate outreach and earned links without misinformation.

Analysis

Hartzer approaches the subject through empirical observation rather than industry dogma. By analysing over two decades of unbought backlink data, the resource demonstrates the natural decay of links and the prevalence of low-quality links by default, providing practical guidance for sustainable SEO campaigns.

Original post

Bill Hartzer

@bhartzer · 3 August 2026

After 20 plus years of doing SEO, I thought I’d give back to the community. I’ve created Advanced Link Training t.co/J5zgYk3O9A which is 50 link building lessons across 9 different Modules. All for free. No signups, I don’t collect your email. Just free.

378 likes22 replies545 bookmarks23.5k views

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