A cannabis affiliate site lives or dies by Google's reviews system, which rewards first-hand evidence and demotes rewritten spec sheets. Three constraints shape the work: FTC disclosures are mandatory, Amazon is off the table for CBD and THC, and medical claims are a trap. Win by actually testing products and comparing them honestly.
Write for Google's reviews system
Google runs a dedicated reviews system that looks for evidence the reviewer actually used the product: original photos, testing notes, measurements, and specific pros and cons. It is explicitly built to demote thin affiliate roundups that just restate manufacturer copy. So the core of your SEO is not keyword density, it is proof of first-hand evaluation. A page that shows a grinder taken apart and tested beats ten pages that paraphrase the same product description.
Disclose affiliate relationships in the open
The FTC requires a clear, conspicuous disclosure any time a link can pay you, placed near the link, not hidden in a footer. This is not only compliance, it lines up with what Google's reviews guidance rewards: transparency about how the content earns money. A visible "we may earn a commission" line at the top of a review protects you legally and signals the honesty the ranking system is looking for. Both goals point the same direction — honesty about the money.
Forget Amazon, map real affiliate revenue
Amazon does not sell THC and bans CBD, so its affiliate program cannot monetize the products your audience wants. Your revenue comes from direct brand programs, seed banks, accessory and glass retailers, and cannabis-specific affiliate networks. That reality should drive your content: build comparison and best-of pages around merchants who actually have programs, because a beautifully ranked page for a product with no affiliate path earns nothing.
A worked example
A site wants to rank for "best herb grinders." The losing version is a listicle assembled from Amazon-style descriptions with a generic disclosure buried at the bottom. The winning version buys or borrows five grinders, photographs each, tests grind consistency and thread wear, notes which fell short, links each to a merchant that runs an affiliate program, and puts the commission disclosure right under the headline. It ranks in the reviews system, converts because the recommendations are credible, and stays compliant.
Stay clear of medical claims
Affiliate sites drift into "best CBD for sleep" or "best strain for pain" because those queries convert, but asserting a product treats a condition invites FTC scrutiny and undercuts the trust the whole model rests on. You can report what a product is, how it performed in your testing, and what users say, without claiming it cures anything. Frame around the product and the experience, not a medical outcome. This is general information, not legal or medical advice.
Build evergreen assets that keep earning
Comparison pages, buying guides, and best-of roundups keep pulling traffic for years if you refresh them, so update tested products, prices, and links on a schedule rather than letting them go stale. The affiliate model rewards durable assets: one thoroughly tested, well-maintained guide can out-earn a stack of quick posts that fade in a season.
Key takeaways
- Google's reviews system rewards first-hand testing and photos, and demotes rewritten spec sheets.
- Place a clear FTC affiliate disclosure near the link; it is required and it helps rankings.
- Skip Amazon, it bans CBD and THC, and monetize through brand, seed-bank, and accessory programs.
- Never make medical claims; review the product and the experience, not a cure. Refresh evergreen guides on a schedule.
Frequently asked questions
Do cannabis affiliate sites need FTC disclosures?
Yes. The FTC requires a clear, conspicuous disclosure whenever a link can earn you a commission, placed near the link rather than buried in a footer. This is not just legal hygiene, it aligns with Google's reviews guidance, which rewards content that is transparent about how it makes money. A visible disclosure protects the site and supports its rankings at the same time.
Can a cannabis affiliate site use the Amazon program?
Not for the products that matter here. Amazon does not sell THC products and prohibits CBD, so its affiliate program is a dead end for a cannabis site. Revenue instead comes from direct brand affiliate programs, seed banks, accessory retailers, and cannabis-specific networks, which changes both your merchant relationships and which comparison content is worth building.
What makes a cannabis review rank in Google's reviews system?
First-hand evidence of real evaluation: original photos, hands-on testing notes, measurable comparisons, and clear pros and cons rather than rewritten spec sheets. Google's reviews system is built to reward exactly this and to demote thin affiliate roundups, so a page that shows real testing outranks one that only aggregates what everyone else already published.
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