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Privacy Policy

Updated October 14, 2026

This policy covers agentrail.co: the public website, the waitlist, the agent readiness check, and booking a conversation with us. It does not cover a future Agentrail product. If we offer that product, we will say how it handles information before you use it.

This site is operated by Aeternus Inc. (“we”), 8 The Green, Ste A, Dover, Kent County, Delaware 19901, under the name Agentrail.

What we collect

Email address. If you join the waitlist, we store the address you submit. We use it to keep your place, to email you about the waitlist, to send you Field notes, our newsletter, and to recognize the same address if you submit it again. Subscribing to Field notes on the blog also puts you on the waitlist.

Meeting details. Get in touch opens a scheduler run by Cal.com. If you book a time, Cal.com collects what you enter there, such as your name and email, and shares it with us so the meeting can happen. Cal.com’s privacy policy applies to that form.

Agent readiness check. If you run a check, the address you enter is sent to the Agentrail API. If you also enter an email, that email is sent with the check so we can mail you about it, and this browser tab remembers it until you close the tab so the waiting page can show it. That memory is not analytics.

How you use the site. If you allow analytics, we use PostHog to record page views and a few actions, such as joining the waitlist, a join that did not go through, sharing a link, copying an article link, and booking a meeting. Before you submit an email, those events are not tied to your name or email. After you join, we link activity in that browser to the email you gave us. If you do not allow analytics, PostHog does not run in your browser. A signup is still stored for the waitlist, and it is not sent to PostHog.

Visit counts. If you allow analytics, Vercel counts page views in aggregate. That count does not use a cookie and does not identify you. It does not run until you allow analytics.

Page speed. If you allow analytics, Vercel records how fast the page loaded in this browser, including paint time and how quickly it responds to a click. That record does not use a cookie and does not identify you. It does not run until you allow analytics.

We do not ask for payment details on this site. We do not sell personal information, and we do not use your email for advertising.

Why we use it

We use this information to run the waitlist and the agent readiness check, send messages you asked for, hold meetings you book, understand how the site is used when you allow analytics, and keep the site working.

Legal basis

We use the same rules for every visitor. If you are in the EEA, the UK, or Switzerland, those rules line up with the law like this:

  • Waitlist emails, newsletter emails, meeting bookings, and an agent readiness check you start are processed because you asked us to do those things.
  • Necessary cookies are exempt from consent. The site needs them to remember this choice, credit a referral link you opened, and recognize your waitlist status in this browser.
  • Analytics is processed only with your consent. You can refuse it, and you can withdraw consent later. The waitlist, the check, and booking a meeting still work if you refuse.

Who else handles it

A few companies process information so they can provide a service to us:

  • Attio stores waitlist and newsletter email addresses.
  • PostHog processes site analytics only if you allow it. Our PostHog project is in the United States. Allowing analytics means that information is transferred there. If you refuse, we do not make that transfer from your browser, and we do not send your waitlist signup to PostHog.
  • Vercel hosts the site. If you allow analytics, Vercel also provides the visit counts and page-speed measurements above.
  • Cal.com runs the meeting scheduler.
  • Customer.io sends waitlist email and the newsletter, including the link to unsubscribe.

We do not give your email to other companies for their own marketing.

How long we keep it

We keep your email while you are on the waitlist. If you ask us to delete it, we remove it from the waitlist. A copy may remain in backups for a limited time. If you had allowed analytics, events already sent may remain until that provider’s normal retention removes them. Withdrawing consent stops new analytics in this browser. It does not, by itself, delete events already received.

Cookies and storage

Analytics stays off until you allow it. The banner asks every visitor, not only people in Europe. The choice is stored for six months. After that, we ask again. You can change it sooner from Cookie settings in the footer, or here:

Necessary. These are always on. They are not used for advertising.

  • ar_consent remembers whether you allowed analytics. About six months.
  • ar_ref is the referral code from a link you opened, so the person who invited you gets credit if you join. 30 days. Opening a page with ?ref= in the address sets the same cookie.
  • ar_ref_via is the platform that referral link came from. 30 days. It is set only together with ar_ref.
  • ar_me is set when you open your waitlist status page, so this browser can show that it is you. 30 days.

Analytics. Off until you allow it. Refusing or withdrawing does not block the site.

  • PostHog stores an identifier in cookies and local storage whose names start with ph_, so it can tell one visit from another. About a year. If you withdraw consent, we delete that storage in this browser and stop loading PostHog.
  • Vercel Web Analytics does not set a cookie. It receives a page view, and only after you allow analytics.

Only after you ask.

  • Cal.com loads when you open the meeting scheduler, not on an ordinary page view. Cal.com’s privacy policy applies to that form. Cal.com may then set its own cookies.
  • YouTube plays the trailer from the youtube-nocookie.com domain only after you press play. YouTube may then receive that request.
  • Agent readiness email. If you add an email to a check, this tab stores it in session storage until you close the tab. It is not sent to PostHog or Vercel.

We do not use advertising cookies.

Your choices

You can allow or refuse analytics, and you can change that choice later, from Cookie settings in the footer of any page. Refusing or withdrawing does not remove you from the waitlist.

You can unsubscribe from our emails with the link in any of them. You can also ask us to remove you from the waitlist, delete the email you submitted, or correct it. Use Get in touch on thehomepage, or reply to a message we sent you.

If you are in the EEA, the UK, or a place with similar rules, you can ask to access, correct, delete, or export personal information we hold about you, and you can object to or restrict certain uses of it. You can also complain to your local data protection authority.

Children

This site is not meant for anyone under 16. We do not knowingly collect personal information from children.

Changes

If we change this policy, we will post the new version on this page and update the date above. If a change materially affects email addresses already on the waitlist, we will also say so in a message to those addresses.

Contact

Questions about this policy: write to Aeternus Inc., 8 The Green, Ste A, Dover, Kent County, Delaware 19901, use Get in touch on the homepage, or reply to an email we sent you. The terms cover use of the site.

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