PRIVACY POLICY — LumiSEO
Last Updated: March 27, 2026
1. Overview
LumiSEO is a browser extension designed to help users analyze on-page SEO,
structured data, headings, media, and AI readiness signals on any webpage.
We are fully committed to protecting your privacy. This policy explains
clearly what data is and is not collected.
2. Data Collection
We do NOT collect, store, or transmit any personal user data.
Specifically, this extension:
❌ Does NOT collect personal information (names, emails, accounts, etc.).
❌ Does NOT track your browsing history or behavior.
❌ Does NOT sell, share, or monetize any user data.
❌ Does NOT use third-party analytics, advertising, or tracking services.
❌ Does NOT send page content to any external server owned by LumiSEO.
3. How It Works
LumiSEO operates entirely on your local device through the following methods:
On-Page Analysis:
The extension reads the HTML structure of the currently active tab to extract
meta tags, headings (H1–H6), images, links, JSON-LD structured data, Open Graph
tags, Twitter Card tags, and other SEO-relevant signals. This analysis is
performed locally and no data leaves your browser.
llms.txt Check:
The extension makes anonymous HEAD requests to {current-site}/llms.txt and
{current-site}/llms-full.txt to detect whether the file exists. No personal
data is included in these requests.
Resources API:
The extension fetches a public product list from the LumiSEO API
(lumiseo resources endpoint) to display recommended tools in the Resources tab.
This request contains no user data or identifiers.
External Tool Links (User-Initiated):
The Quick Check section and AI analysis buttons open external tools
(PageSpeed Insights, Google Rich Results Test, Ahrefs, Semrush, ChatGPT,
Claude, Gemini, etc.) in a new browser tab. These are standard links
activated only when you click them. LumiSEO does not control these
third-party services and their own privacy policies apply.
4. Permissions Used
LumiSEO requires the following browser permissions to function:
activeTab:
To access the content of the currently active tab only when you
explicitly open the extension.
scripting:
To inject the content script that reads on-page SEO data from
the current tab.
storage:
To save your local preferences such as visual highlighting toggles
(Highlight Nofollow Links, Highlight Headings, SERP Counter).
These preferences are stored only in your browser and never transmitted.
host_permissions (http://*/* and https://*/*)
Required to run the content script on any website you choose to analyze.
The extension only activates when you open it — it does not run passively
in the background on every page you visit.
5. Data Storage
All SEO analysis is performed in real-time and is not stored after you
close the extension popup. The only data stored locally in your browser
is your settings preferences (visual highlighting toggles), using the
browser's built-in chrome.storage.local. This data never leaves your device.
6. Third-Party Services
LumiSEO interacts with the following external services:
- LumiSEO Resources API: Fetches a public list of recommended tools
(no user data sent).
- External SEO tools (PageSpeed, Ahrefs, Semrush, etc.): Opened via
user-clicked links only. Their respective privacy policies apply.
- AI platforms (ChatGPT, Claude, Gemini, Grok, Perplexity): Opened
via user-clicked links with the current page URL as a query parameter.
These platforms have their own privacy policies.
LumiSEO does not integrate with any advertising networks, marketing
platforms, or user tracking services.
7. Children's Privacy
LumiSEO is a professional SEO tool not directed at children under 13.
We do not knowingly collect any information from children.
8. Changes to This Policy
We may update this privacy policy from time to time to reflect changes
in features or legal requirements. Any updates will be reflected with
a new "Last Updated" date on this page.
9. Contact
If you have any questions or concerns about this Privacy Policy,
please contact us:
Email: contact@doxuantoan.com
Website: https://doxuantoan.com
YouTube: https://www.youtube.com/@toanweb
Facebook: https://www.facebook.com/toanwebai