Can I check a phone number on Whatsapp?

Yes. Whatsapp is one of the platforms that can be checked from a phone number; send the number in E.164 format as query.

How fast is a Whatsapp check?

Fast: Whatsapp 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 Whatsapp blocks the check?

Whatsapp 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 Whatsapp account details?

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

Check if a phone number is on Whatsapp

Digital Footprint checks Whatsapp from a phone number as part of every lookup, alongside 887+ other platforms, breach history and public web mentions - one request, one shape of answer. A hit means an account exists for that input; account contents are never collected.

Accepts: phone number
Speed: Instant tier
Popularity: #3 by global traffic
Category: Accounts & identity

What we check on Whatsapp

Instant tier for phone number lookups - answered in well under a second

Whatsapp is one of the few platforms that can be checked from a phone number. The response says whether that number is registered on Whatsapp, with the moment that was established in checkedAt.

Whatsapp 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 Whatsapp 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": "+14155552671"}'

What a Whatsapp result looks like

From results[]

{
  "platform": "whatsapp",
  "registered": true,
  "checkedAt": "2026-08-31T01:53:17.067Z"
}

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 Whatsapp.

Google Microsoft Bitly Internet Archive Mozilla Adobe Udemy Shutterstock

Whatsapp lookup FAQ

Can I check a phone number on Whatsapp?: Yes. Whatsapp is one of the platforms that can be checked from a phone number; send the number in E.164 format as query.
How fast is a Whatsapp check?: Fast: Whatsapp 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 Whatsapp blocks the check?: Whatsapp 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 Whatsapp account details?: No. You get whether an account exists for the input you sent, and when that was established. No profile contents, photos, followers or private data are collected or returned.

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