Affiliate Disclosure

Treeline Index is supported by affiliate commissions. Some links on this site are affiliate links: if you buy through one, we may earn a commission at no extra cost to you. Affiliate links are marked with rel="sponsored" and disclosed site-wide and per-page.

How it works

Affiliate relationships never determine what we cover, how we rank it, or what we write about it. Our editorial judgment is independent of commission structure. See our methodology for how we source, test, and present gear.

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Per-link marking

Every affiliate link carries rel="sponsored" to comply with FTC and EU guidelines. This markup signals to search engines and assistive tools that the link is promotional.

Regional routing

Affiliate links are routed to vendors in your region — US, EU, UK, or GLOBAL — detected from Cloudflare's CF-IPCountry header. You can override your region from the footer picker on any page.