1. Introduction
This cookie policy explains how the Tangison Agent marketing website at agent.tangison.com uses cookies. Because Tangison Agent is a self-hosted tool that you run on your own infrastructure, our cookie usage is minimal and honest. We do not run an advertising business. We do not sell your attention to third parties. We do not profile you across visits, and we do not measure your behavior in order to optimize copy against you. The parent company, Tangison, is described in more detail at tangison.com. If you want the full picture of how we handle data on this site, read this page alongside our Privacy Policy at /privacy. This page is specifically about cookies and similar browser storage, and it is written in plain language so you can audit us in a few minutes. If a sentence here ever conflicts with what your browser tells you, trust your browser, and then tell us so we can fix the discrepancy.
2. What is a cookie
A cookie is a small text file that your browser stores on your device when you visit a website. Cookies let the site remember things across page loads and across visits. For example, a cookie can remember that you dismissed a banner, that you picked a language, or that you have an open session in a chat widget. Cookies are not programs. They cannot run code on your device. They are just strings of text. A cookie has a name, a value, an expiry date, and a scope that says which site is allowed to read it. Modern browsers also support related storage mechanisms like localStorage and sessionStorage, which work on the same principle but hold more data. When we say "cookies" in this policy, we mean cookies and those related browser storage mechanisms together. A site that sets a cookie can read it back later, but only if the scope matches and the cookie has not expired.
3. Cookies we use
We use only essential cookies that are required for the site to function. If you open the AI concierge widget, a session cookie keeps the conversation context alive while you have the page open. That cookie is gone the moment you close the tab, and it is not readable by any other website. If you open the mobile menu and then close it, a cookie remembers that choice so the menu does not pop back open on the next page load. That cookie has a short lifetime, usually a few hours, and it stores nothing except the closed state itself. That is the full list. We do not use tracking cookies that follow you across visits. We do not use advertising cookies that match you to an audience segment. We do not use third-party analytics cookies that report your behavior to an external dashboard. Every cookie we set has a clear job, and every job is one we could not do without that cookie. If you want to inspect them yourself, open your browser's developer tools and look at the Application tab.
4. Cookies we do not use
We do not use Google Analytics, so there is no _ga cookie on this site. We do not use Facebook Pixel, so there is no _fbp cookie. We do not use advertising network cookies from Google Ads, Microsoft Ads, LinkedIn, Twitter, or any other ad platform. We do not use cross-site tracking cookies that let an ad network follow you from this site to another site you visit later. The marketing site at agent.tangison.com does not profile you. We made these choices deliberately, because the product we are describing is a sovereignty tool. It would be incoherent to preach data sovereignty on a site that quietly hands your browsing behavior to five ad networks. So we do not. If a third-party cookie ever appears on this site, it is a bug, and we want to know about it. Contact details are at the bottom of this page. We will treat any such report as a security issue, not a minor complaint.
5. Third-party cookies
If you click the WhatsApp button anywhere on this site, you will be redirected to wa.me, which is the web entry point for WhatsApp. Once you land on wa.me, WhatsApp may set its own cookies on your browser. WhatsApp's cookie policy applies from that point onward, and you should read it on the WhatsApp website if you have questions about what they store. We do not control what WhatsApp does, and we do not benefit from it. The same is true for any external link on this site. If you click a link that takes you to tangison.com, to the GitHub repository, or to the OpenRouter documentation, the site you land on may set its own cookies under its own policy. We do not set cookies that are readable by those third-party sites, and we do not read cookies that they set. The boundary is clean. When you leave agent.tangison.com, our cookies stay here and their cookies stay there.
6. Self-hosted deployments
When you self-host Tangison Agent, you control cookies entirely. We do not phone home. We do not set cookies on your deployment. We do not load any script, pixel, beacon, or fingerprinting library from a Tangison-controlled domain into your self-hosted instance. The source code is public in the repository at github.com/tangison/agent and you can read every line to confirm this. If you expose your self-hosted deployment to end users, the cookie story is yours to write. You decide whether the dashboard sets a session cookie. You decide whether the chat widget remembers conversation history. You decide whether to add analytics. You are the data controller for your deployment, which means you are also the cookie policy author for your deployment. We give you sensible defaults, but the final decision is yours. Audit your configuration before you ship to production. If you are not sure whether your deployment sets a cookie, open it in a fresh private window and inspect the Application tab. What you see is what your users get.
7. How to opt out
You can disable all cookies in your browser settings, and the site will still work. The homepage, the features section, the use cases, the pricing, and the documentation pages all load and read normally with cookies turned off. The AI concierge widget will still open, and you can still send a message through it. The only thing you lose is conversation continuity. With cookies disabled, the widget will not remember your previous message between page loads, so each visit starts a fresh chat. The mobile menu will also forget that you closed it, which is a minor annoyance at worst. We do not show a cookie banner on this site because we do not set any non-essential cookies that would require your consent under the ePrivacy Directive or similar laws. If your browser asks you whether to accept a cookie from agent.tangison.com, you can safely decline. You will not miss anything important.
8. Browser controls
Most modern browsers let you refuse new cookies, delete existing cookies, or set rules for specific sites. In Chrome and Edge, look under Settings, then Privacy and security, then Third-party cookies or Cookies and other site data. In Firefox, look under Settings, then Privacy and Security, then Cookies and Site Data. In Safari, look under Settings, then Privacy, then Manage Website Data. In Brave, the Shields panel gives you per-site control. The exact path changes between versions, so if you cannot find the option, search your browser's help documentation for "manage cookies". You can also browse this site in a private window or in incognito mode, which discards cookies when you close the window. If you want a deeper level of control, browser extensions like uBlock Origin let you block cookie creation per domain. None of these tools will break this site, because we do not depend on cookies for core functionality.
9. Changes to this policy
We may update this cookie policy from time to time. If we add a new cookie, change the purpose of an existing one, or extend a cookie's lifetime in a way that matters, we will post the change on this page and update the "Last updated" date at the top. Material changes will also be announced on tangison.com so you have a chance to see them before you next visit. We will not retroactively apply a broader cookie practice to data we collected under a narrower one. If we ever decide to add a non-essential cookie, like an analytics cookie, we will show a consent banner at that point and we will require your opt-in before we set it. That is not the case today, and we have no plans to make it the case. But if it ever happens, you will know first, and you will have the choice. The commit history for this page is public if you want to audit every revision.
10. Contact
If you have a question about this cookie policy, or if you believe a cookie on this site is doing something this policy does not describe, the fastest way to reach us is WhatsApp. Message Tangi Iigonda directly through the button below. He replies within one business day. If you prefer email, or if your question includes screenshots or developer-tools output, write to contact@tangison.com and put "Cookie policy" in the subject line. You can also read more about Tangison, its other projects, and its stance on tracking at tangison.com. We treat cookie reports as bug reports. If you find a tracking cookie that should not be there, tell us and we will remove it and explain how it got there in the first place. We respond in English. If you write to us in another language, we will do our best to reply, but we cannot guarantee a fast turnaround. We do not charge for cookie inquiries, and we will not dismiss a reasonable report just because it is inconvenient.
Cookie inquiries