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DuckINT
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What is DuckINT?

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DuckINT is an OSINT (open-source intelligence) search platform. You type one value — an email address, username, domain, IP address, URL or Discord ID — and it queries every source that fits in parallel: breach and infostealer-log indexes, DNS and RDAP registries, certificate transparency and public profile sites. Each result shows the provider that returned it.

What DuckINT does

  • Email: breach and leak indexes, infostealer-log indexes, Gravatar and GitHub, and a check of the address's username on other sites, shown as possible matches.
  • Username: hundreds of public sites (WhatsMyName), developer and community platforms, and leak indexes.
  • Domain and IP: RDAP registration data, DNS records, certificate transparency, archived pages, reputation and exposure sources.
  • Discord ID, crypto addresses and phone numbers: dedicated lookups for each.
  • Results are grouped by type, and each one names its source and when it was retrieved.

Who it is for

  • People checking their own exposure: which breaches include their email, and whether their credentials appear in infostealer logs.
  • Security teams and researchers doing authorized investigations and incident response.
  • Journalists and OSINT practitioners who need sourced, repeatable lookups.

Stalking, harassment and any unlawful use are prohibited by the acceptable use policy.

How it handles sensitive data

  • Leaked passwords from breach and infostealer records stay blurred until you choose to reveal them.
  • Accounts use a username and a single access key; no email address or password is needed.
  • Search history belongs to the account: delete any entry or clear it all; records are purged after the retention period.
  • The AI assistant (Pro) only receives a masked summary of a report, never the searched value or any password.

Pricing

Plans: Free ($0, a small daily allowance), 5 ($5 / 30 days), Monthly ($15 / 30 days), Yearly ($50 / year, unlimited) and Pro ($250 / year, unlimited plus the AI assistant, name@* searches and Intelligence X). Only searches that return at least one result use the daily allowance; failed and empty searches are free. Payment is in crypto through OxaPay.

Questions

Is DuckINT free?
Yes, there is a free plan with a small daily allowance of successful searches. Paid plans raise the limit; the Pro plan also adds the AI assistant, name@* searches and the Intelligence X index.
Where does DuckINT's data come from?
From named providers queried at search time, such as OathNet, LeakCheck, XposedOrNot, Hudson Rock, RDAP registries, DNS resolvers, crt.sh and public profile sites. DuckINT does not invent or estimate results; a source that finds nothing is shown as empty.
Who runs DuckINT?
DuckINT is an independent project. Support and announcements are on its Telegram channel (t.me/duckintxd); the contact page lists every channel.

Sources

Check your own email, username or domain in one search.

Search DuckINT