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Overview
Holos Discover is designed with privacy at its core. We only index public content from users who have opted in to discoverability, and we collect minimal data necessary to operate the service.
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Public Content Indexing
We index content from the Fediverse (Mastodon, Pleroma, Misskey, etc.) using the ActivityPub protocol.
- check_circleOnly public posts are indexed - never private, followers-only, or direct messages
- check_circleOnly content from users who have enabled discoverability is indexed
- check_circleUsers can opt out at any time via their instance settings
- check_circleWhen content is deleted or a user opts out, we remove it within 24 hours
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API Key Data
When you request an API key, we collect some information to manage access and prevent abuse.
Data Collected
- emailEmail address - to communicate about your API key status
- appsApplication name and description - to understand your use case
- routerIP addresses (hashed) - for abuse detection and rate limiting
- analyticsAPI usage statistics - request counts per endpoint
Purpose
- checkEmail you about key approval, rejection, or revocation
- checkDetect and prevent API abuse (rate limit violations, key sharing)
- checkProvide you with usage statistics in your dashboard
Data Retention
API key data is retained while your key is active. Usage logs are kept for 90 days. IP tracking data is deleted after 24 hours. When a key is revoked, all associated data is deleted immediately.
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Public API Usage (No API Key)
When you use the API without an API key:
- memoryYour IP address is kept in memory only for rate limiting
- blockIP addresses are not stored in database or logged
- auto_deleteRate limit data is automatically cleared within minutes
- blockNo persistent tracking or fingerprinting
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Web Interface
When you use our web search interface:
verified
No tracking, no cookies, no analytics
- blockNo user tracking or fingerprinting
- blockNo cookies except essential session cookies for admin
- blockNo third-party analytics or advertising
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Your Rights
Under GDPR and similar regulations, you have the following rights:
Fediverse Users
If your public content is indexed, you can opt out using any of these methods:
- toggle_offDisable the "indexable" option in your profile settings
- tagAdd #nobot or #noindex to your bio
- lockLock your account (require follow approval)
- blockBlock @HolosDiscover directly
- alternate_emailMention us with "unfollow"
Any of these will remove all your content from our index immediately.
API Key Holders
If you have requested an API key, you can manage your data directly from your dashboard:
- visibilityView your data - see all information we have about you
- downloadExport your data - download a JSON file with all your information
- deleteDelete your data - permanently remove your API key and all associated data
Access these options from your API key dashboard using the link sent to your email.
For any other privacy concerns, contact the instance administrator.
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Policy Updates
We may update this privacy policy from time to time. Significant changes will be announced on the instance.
Last updated: 2026-03-03