[ LEGAL ]Overview
This Privacy Policy describes how Username Inspector ("we", "us", or "our") collects, uses, and discloses your personal information when you visit or use our website at https://usernameinspector.com (the "Site"). Please read this Privacy Policy carefully. By using and accessing the Site, you agree to the collection, use, and disclosure of your information as described in this Privacy Policy. If you do not agree to this Privacy Policy, please do not use or access the Site.
1. Changes to This Privacy Policy
We may update this Privacy Policy from time to time, including to reflect changes to our practices or for other operational, legal, or regulatory reasons. We will post the revised Privacy Policy on the Site and update the "Last updated" date above.
2. How We Collect and Use Your Personal Information
Username Inspector is a free tool for checking username availability across resale platforms and comparing selling fees. What leaves your browser depends on how you use it.
Usernames You Check
- Manual mode. The Site builds profile links in your browser. The usernames you type are not sent to our servers. When you open one of those links, you go straight to the marketplace.
- Auto-check mode and the MCP server. To show a live result, the username is sent to our server, which asks the marketplace's public profile page whether that name exists and passes the answer back. The same happens when an AI assistant calls our MCP server, which also receives whatever other inputs the assistant sends (such as sale prices for the fee comparison). The links-only MCP endpoint (
/api/mcp-links) contacts no marketplace: it only builds profile links from the username it receives. We do not store these usernames, write them to our logs, or use them for any other purpose. The MCP server may keep a result in the server's memory for up to five minutes so a repeat lookup of the same name is not sent to the marketplaces again, then discards it. - Fee calculator. Calculations run in your browser. The numbers you enter are not sent to us.
Our hosting provider, Vercel, keeps standard server logs for the Site, which typically record the time, the page or endpoint requested, and the IP address of the request. Those logs do not include the contents of the usernames you submit. The marketplaces see a request for the profile page from our server, not from your device.
You do not need to create an account or provide any personal information to use the username checker, fee calculator, or any other tool on the Site. The only places we collect a personal contact detail are the optional email newsletter signup and the Contact page form, both described below, and both are entirely your choice.
Information We Collect Automatically
When you visit the Site, we automatically collect certain information about your interaction with the Site through Google Analytics, a third-party analytics service provided by Google, Inc. This information ("Usage Data") may include:
- Your IP address
- Browser type and version
- Device type and operating system
- Pages visited and time spent on pages
- Referring website or source
- General geographic location (country/region level)
- Other standard analytics data about how you interact with the Site
We use this Usage Data to understand how visitors use the Site, to improve the Site and our services, and to monitor the Site's performance. This information is collected in aggregate and is not used to personally identify individual visitors.
3. Email Newsletter and Contact Form
The Site offers an optional email newsletter with updates about reselling platform fee and policy changes and new guides. If you choose to subscribe, we collect the email address you provide and share it with Buttondown, the third-party service we use to send the newsletter. Buttondown's use of your information is governed by Buttondown's Privacy Policy.
New subscriptions require confirmation: after signing up, you'll receive a confirmation email, and you won't be added to the list until you confirm. Every newsletter email includes an unsubscribe link, and you can unsubscribe at any time with no need to contact us first.
The Site's Contact page lets you send us a message with your name, email address, and message content. We use Resend, a third-party email delivery service, to send that message to our inbox and to route any reply you receive back to the email address you provided. Resend's use of your information is governed by Resend's Privacy Policy. We use the information you submit only to respond to your message.
4. Cookies
We use cookies and similar technologies on the Site through Google Analytics. These cookies help us analyze Site traffic and usage patterns. The cookies we use include:
- Google Analytics cookies: used to distinguish users and throttle request rates. These cookies collect information about how you use the Site, such as which pages you visit and how long you spend on them.
Most browsers automatically accept cookies by default, but you can choose to set your browser to remove or reject cookies through your browser controls. Please keep in mind that removing or blocking cookies may affect the functionality of some features on the Site. For more information about how Google uses data collected through Google Analytics, please visit Google's Privacy & Terms page.
You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.
Cookie Consent
When you first visit the Site, a cookie consent banner will appear at the bottom of the page. You may choose to accept or decline analytics cookies:
- Accept: Google Analytics cookies will be enabled, allowing us to collect Usage Data as described above.
- Decline: Google Analytics cookies will not be set, and no Usage Data will be collected.
Your choice is stored in your browser's localStorage and will be remembered on future visits. To reset your preference, clear your browser's localStorage for this site and reload the page.
5. How We Disclose Personal Information
We do not sell, rent, or trade your personal information to third parties. We may disclose Usage Data collected through Google Analytics to:
- Google, Inc.: as our analytics service provider, Google receives Usage Data through Google Analytics cookies as described above. Google's use of this data is governed by Google's Privacy Policy.
- Buttondown: if you subscribe to our email newsletter, Buttondown receives and stores your email address in order to deliver it. See Buttondown's Privacy Policy for details.
- Resend: if you submit the Contact page form, Resend receives your name, email address, and message in order to deliver it to us and route our reply back to you. See Resend's Privacy Policy for details.
- Vercel: our hosting provider receives the requests made to the Site, including auto-check and MCP requests, and keeps standard server logs as described in section 2. See Vercel's Privacy Policy.
- The marketplaces you check: when auto-check or the MCP server looks up a username, our server requests that marketplace's public profile page for the name. The marketplace receives that request from our server.
We may also disclose information if required to do so by law or in response to valid requests by public authorities (e.g., a court or government agency).
6. Affiliate Links and Advertising
This site participates in affiliate marketing programs, including the eBay Partner Network and the Awin affiliate network. When you click an affiliate link on this site, you may be redirected to a third-party website. These third parties may set their own cookies on your device as part of their tracking and attribution systems. We do not control these third-party cookies. Please review the privacy policies of the relevant third parties for more information. Our Affiliate Disclosure provides further details about our affiliate relationships.
7. Third-Party Websites and Links
The Site contains links to third-party websites, including resale platform profile pages generated by the tool. If you follow links to sites not affiliated or controlled by us, you should review their privacy and security policies and other terms and conditions. We do not guarantee and are not responsible for the privacy or security of such sites, including the accuracy, completeness, or reliability of information found on them. Our inclusion of such links does not imply any endorsement of the content on such platforms or of their owners or operators.
8. Children's Data
The Site is not intended to be used by children, and we do not knowingly collect any personal information about children. If you are the parent or guardian of a child who has provided us with their personal information, you may contact us to request that it be deleted.
9. Security
We take reasonable measures to help protect information collected through the Site. However, please be aware that no security measures are perfect or impenetrable, and we cannot guarantee "perfect security."
10. Data Retention
Usage Data collected through Google Analytics is retained according to Google Analytics' data retention settings. If you subscribe to our email newsletter, your email address is retained by Buttondown until you unsubscribe or request deletion. If you submit the Contact page form, your message is delivered to our inbox via Resend and retained there as we would retain any other email; Resend's own retention of the message in transit is governed by its Privacy Policy. We do not independently store the usernames you check or any other personal information about our visitors beyond what is collected through Google Analytics, Buttondown, Resend, and our hosting provider's standard server logs as described above.
11. Your Rights and Choices
Depending on where you live, you may have some or all of the following rights in relation to your personal information:
- Right to Access / Know. You may have a right to request access to personal information that we hold about you.
- Right to Delete. You may have a right to request that we delete personal information we maintain about you.
- Right to Correct. You may have a right to request that we correct inaccurate personal information we maintain about you.
- Right to Opt Out. You can opt out of Google Analytics data collection by declining cookies via the consent banner, by using the Google Analytics Opt-out Browser Add-on, or by adjusting your browser's cookie settings. You can unsubscribe from our email newsletter at any time using the link in any email we send.
To exercise any of these rights, please contact us using the information below.
12. Contact Information
If you have questions or concerns about this Privacy Policy or our data practices, please visit our Contact page.