This page describes what aylio.com does with your information. It is written to be read, not to be survived.
What this site collects
No personal information. There are no accounts, no forms that submit anywhere, no newsletter signup, no comments, and no login. Anonymous usage statistics are collected — see Analytics below.
The fit checker runs entirely in your browser. The measurement you type in is used to display a result on your screen. It is saved in your browser (and only there) so it can be pre-filled on your next visit, and it reaches our analytics only as an anonymous statistic, as described below — never tied to who you are. The saddle width calculator works the same way and saves nothing at all: the measurement you type there draws a result on your screen and is counted as an anonymous statistic, then it is gone when you leave the page.
Cookies
Google Analytics sets cookies to tell one visit from another. That is the only cookie use on the site. Outside the European Economic Area (the EU plus Norway, Iceland and Liechtenstein), the UK and Switzerland they are set on arrival; inside those regions no analytics cookie is set unless consent is given, and Google receives only cookieless, non-identifying pings.
Third parties
Fonts are served from this site, not from a third-party font service.
- Cloudflare — hosts and delivers this site. Every request passes through their network, so they see your IP address, the page you asked for and your browser’s user agent. They set no cookie here, and they receive nothing beyond the request itself.
- Google Analytics receives the usage data described below, including your IP address (anonymized) and general location.
- Amazon — the buy links go to Amazon. Once you follow one, you are on Amazon’s site under Amazon’s privacy policy, and any purchase, payment and shipping information is handled entirely by them. We never see your payment details.
- Our Amazon links carry an attribution tag so Amazon can tell us that a visit came from this site. That reports aggregate totals to us. It does not tell us who you are.
- YouTube — no video on this site — the product video on the homepage, or the measuring video on the fit and saddle guides — loads until you press play. Nothing is requested from YouTube before that. When you do press play, the video streams from YouTube’s privacy-enhanced domain (youtube-nocookie.com) under Google’s privacy policy.
Analytics
This site uses Google Analytics 4 to count visits and see which pages and links people use. It records things like the pages you view, how far down them you scroll, whether you use the fit checker and which result you get, which answer you give if you use the “where does it hurt?” chooser or the one-tap poll on the setup page, which FAQ questions you open, and when you click through to Amazon. IP addresses are anonymized.
It does not record your name, your email, or the measurement you type into the fit checker as anything identifying you — the fit checker still runs entirely in your browser, and the number is sent only as an anonymous statistic so we can see which sizes we do and do not fit.
Advertising and personalization signals are switched off. If you are in the EEA, UK or Switzerland, no analytics cookie is set by default and nothing is sent to Google that could identify you until that changes.
You can opt out entirely with Google’s browser add-on. This site also honors your browser’s Do Not Track and Global Privacy Control signals: when either is switched on, Google Analytics is disabled for your visit.
What this site keeps in your browser
Separately from analytics, a few things are saved on your own device so the site behaves sensibly. None of them is tied to you, and we cannot read what is on your device. Two of the four are also reported to Google Analytics when they change what the page does — each is marked below.
- Your sit-bone measurement, if you use the fit checker, so you do not have to find cardboard twice. It expires after 60 days, and a measurement that arrives in a shared link is never saved. Reported to analytics: when a saved measurement is re-checked, the number and its verdict are sent, as they are for any check you run.
- An out-of-range fit result, so the site stops showing you a buy bar for a cushion it has just told you not to buy. It expires after 60 days. Stays on your device.
- Which answer you gave to the one-tap poll on the setup page — one word, such as “clinician” or “search” — so you are not asked twice. Reported to analytics: that word is sent when you tap it, which is the whole point of the question.
- How you arrived — one word, such as “search” or “direct” — kept for the current tab only. Reported to analytics: that word is sent with a click through to Amazon, so the click is counted against the right channel.
Clearing your browser’s site data removes all of it, and the site works fine without any of it.
Your rights
The analytics data above is anonymous and not tied to you as a person, so there is nothing for us to export, correct or delete. For anything relating to an order, that data sits with Amazon and their policy governs it.