This page covers how the FutureStack tools may be used, ownership of results, and — most importantly — how to read every revenue figure on this site. If any line here sounds evasive, that is a bug: email adam@futurestk.online and argue with him.
By using the FutureStack website and tools you agree to these terms. If you do not agree, do not use the site. We reserve the right to update these terms; the live version on this page is always the controlling version, and material changes will be date-stamped here.
These terms were last updated August 27, 2026.
FutureStack publishes revenue-impact estimates — forward-looking figures expressed as monthly or annual dollar amounts and percentages. They are estimates, not guarantees, and they exist to rank options against each other and to justify the five minutes it takes to run a measurement, not to promise a specific outcome.
The Calculation Is Repeatable
Every estimator on this site is built on the documented model (see Methodology): a drop of 0.4% in conversion per 100 ms of TTFB above 200 ms, growth of 1 pp in bounce per 100 ms, optimum of ~162 ms (matching well-maintained hosts). The measurement itself is three cache-busted sample loads with the first discarded. You can rerun it any time for free.
Actual results depend on your niche, margins, audience, checkout performance, and a hundred factors no calculator can see. Treat the outputs as directionally valid, financially unguaranteed.
FutureStack is an affiliate-backed independent research project. When you purchase a hosting service or plan through a link on this site, we may earn a commission — at no additional cost to you. The complete, current list of relationships and how pricing was researched is published on our Transparency page.
Commission never changes our recommendation. The numbers we publish are gathered from each provider's own public pricing pages and from direct server measurements, and our tool's recommendation logic cares about measured performance and renewal pricing — not about which program pays us.
Pricing, plans, and features referenced on this site come from the hosting providers' public materials at the time of writing. Hosting companies change prices and terms (that is the entire problem this site exists to expose). We work from screenshots and direct measurements on the dates published, but we accept no liability for a provider changing its terms after our review. Always confirm with the provider before committing.
Speed measurements (TTFB) are timing-sensitive and location-sensitive. A single measurement from your network is a sample, not a contract. The range of samples and their dates are logged in our public benchmark data.
Reports are generated for the site you test and are useful context for that site. We take no responsibility for decisions made based on an estimate — that is the point of the estimates-not-guarantees line above.
To the maximum extent permitted by law, FutureStack provides the site and tools "as is" without warranties of any kind, and is not liable for any direct, indirect, incidental, or consequential damages arising from use of the tools, reliance on the estimates, or a hosting decision made in connection with this site. Nothing here limits liability in a way that is disallowed by law.
Adam — founder and author — reads every message. Reach him at adam@futurestk.online. Complaints, corrections, privacy requests, and arguments about the model all go to the same inbox.