Can I check a phone number on Facebook?

Not directly. Facebook can be reached from email address or username. Phone lookups are in beta and cover a small set of platforms.

How fast is a Facebook check?

Fast: Facebook 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 Facebook blocks the check?

Facebook 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 Facebook 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.

Find a Facebook profile from an email or username

Digital Footprint checks Facebook from an email address or username as part of every lookup, alongside 886+ other platforms, breach history and public web mentions - one request, one shape of answer. A hit means a profile exists for that input; profile contents are never collected.

Accepts: email address or username
Speed: Instant tier
Popularity: #2 by global traffic
Category: Social media

What we check on Facebook

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

Facebook can be checked from an email address or a username. Send either as query and the response says whether a Facebook account exists for it - registered: true or registered: false - with the moment that was established in checkedAt.

Facebook 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 Facebook 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".

One request

POST /v1/lookup?wait=true

curl -X POST "https://api.digifootprint.dev/v1/lookup?wait=true" \
  -H "Authorization: Bearer dfp_your_key" \
  -H "Content-Type: application/json" \
  -d '{"query": "someone@example.com"}'

What a Facebook result looks like

From results[]

{
  "platform": "facebook",
  "registered": true,
  "checkedAt": "2026-08-30T01:50:26.481Z"
}

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 Facebook.

Instagram X (Twitter)Pinterest TikTok Telegram Tumblr VK Weibo

Facebook lookup FAQ

Can I check a phone number on Facebook?: Not directly. Facebook can be reached from email address or username. Phone lookups are in beta and cover a small set of platforms.
How fast is a Facebook check?: Fast: Facebook 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 Facebook blocks the check?: Facebook 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 Facebook 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.

Try it free Read the docs