Privacy

This page lists everything this site learns about you and what we do with it, in plain English.

What this site collects

If you just read, the site collects the same basic traffic information most websites do, through Google Analytics: which pages were visited, roughly what part of the country visitors are from, and what kind of device they used. We see it as counts, not people. We use it to learn which charts are worth making more of. We do not see your name, and we do not try to work out who you are.

If you sign up for the weekly email

The form asks for one thing, your email address. It is stored with Kit, the service that sends the email. We use it to send you the week’s charts and for nothing else. We don’t sell it, rent it, or share it with anyone. Every email has an unsubscribe link, and unsubscribing takes one click, with no follow-up note asking why.

Advertising

This site is built to carry ads, the way a newspaper does. Ads are what keep everything here free. When ads are running, the ad networks (Google AdSense is the first we plan to use) may set cookies to measure whether ads were seen and to avoid showing you the same one twelve times. If you live in a state with a privacy law, you will see Google’s privacy message, and you can limit how your information is used right there. When we advertise our own page on Facebook, this site will also use a Meta pixel, a small snippet that tells us a visit came from a Facebook post. None of this tells us who you are either.

What this site never does

There are no accounts here and no payments. This site will never ask for your card number, your Social Security number, or anything like them. If a page that looks like ours ever does, close it. It is not ours.

Questions

Write to contact@rainydaymath.comand a person will answer. This page was last updated July 16, 2026. When our practices change, for example the day ads go live, we will update this page and change the date at the same time.