Check if a Linktree username exists

What we check on Linktree

Instant tier for username lookups - answered in well under a second

Linktree is checked from a username. The response says whether that handle exists on Linktree - registered: true or registered: false - with the moment that was established in checkedAt. An email address on its own cannot reach Linktree; if you only have an email, its local part is tried as a handle and any hit is labelled as derived, never counted as a confirmed match.

Linktree is in the instant tier: with ?instant=true it is among the first platforms answered, in well under a second. On a full lookup it is checked alongside every other platform and streamed as it lands.

If Linktree blocks the check, times out, or answers ambiguously, it is omitted from results[] entirely rather than returned as registered: false. Absence from the response means "unconfirmed", never "no account".

Who checks Linktree accounts

Social media accounts are checked when a signup, buyer or applicant needs to look like a real person. A social footprint that goes back years is hard to fake in bulk, so an email or phone number registered on established social platforms lowers the odds of a throwaway or synthetic identity. Fraud and trust-and-safety teams read it as one signal among several, never as proof on its own.

More on this: Fake account detection.

Inputs Linktree accepts

• Username: send the handle as query. Linktree is checked for that exact handle - useful when a person reuses the same name across platforms.

One request

curl -X POST "https://api.digifootprint.dev/v2/lookup?wait=true" \
  -H "Authorization: Bearer dfp_your_key" \
  -H "Content-Type: application/json" \
  -d '{"query": "someuser"}'

What a Linktree result looks like

{
  "platform": "linktree",
  "registered": true,
  "checkedAt": "2026-10-15T09:53:16.881Z",
  "identity": "username"
}

The full response shape - breaches, web mentions, matches versus socialMatches, and what method means - is in running a lookup.

Related platforms

Every one of these is checked in the same request as Linktree.

More social media platforms: VK, Weibo, Myspace, Snapchat, Threads · all social media

Linktree lookup FAQ

Can I check a phone number on Linktree?

Not directly. Linktree can be reached from username. Phone numbers are checked on the messaging and social apps that sign people up by phone.

How fast is a Linktree check?

Fast: Linktree is in the instant tier, so with ?instant=true it is answered in well under a second. A full lookup streams it as soon as it lands.

What happens if Linktree blocks the check?

Linktree is left out of the response. We never report a platform we could not confirm as "not registered" - a missing platform means unconfirmed, not absent.

Does the API return the Linktree profile itself?

No. You get whether a profile exists for the input you sent, and when that was established. No profile contents, photos, followers or private data are collected or returned.