Username Social Media Finder — Check 50+ Sites

Give it a username and find out where that handle exists — across 50+ social, video, dev, gaming, music, creative, blog, forum and business platforms. One row per check with the profile URL and a clear found / not_found / unknown verdict. JSON or CSV out, no login, no API keys.

Why this one is different: no false positives

Most username checkers just look at the HTTP status code. That breaks badly, because dozens of platforms answer 200 OK with a "user not found" page (a soft-404), and single-page apps return the same shell for every handle — so a naive checker reports profiles that don't exist.

Every platform in this actor is validated against a known-fake handle before shipping. If a platform can't be told apart over plain HTTP, it isn't in the list. When a site blocks or rate-limits the request, the row says unknown — never a guessed "found".

The validation harness ships with the actor (scripts/validate-platforms.mjs), so the registry can be re-checked whenever a platform changes its behaviour.

What you get

Field	Meaning
username	The handle that was checked
platform	Platform name, e.g. GitHub
category	social, video, dev, gaming, music, creative, blog, forum, business
url	The profile URL — where the profile lives when found
status	found · not_found · unknown
httpStatus	The HTTP code the platform returned
note	Why a verdict was reached (soft-404 marker, block notice, error)
checkedAt	ISO timestamp

Rows come back found first, so the useful ones are at the top.

Use cases

• OSINT & investigations — map one handle's footprint across the web in a single run.
• Brand protection — find impersonation accounts using your brand name on platforms you don't monitor.
• Handle availability — check a name across every platform before a launch (turn onlyFound off to see what's free).
• Influencer research — locate a creator's other channels from a single known handle.
• Lead enrichment — attach social profiles to a contact you already have a username for.

How it works

Your handle is checked against every selected platform in parallel over plain HTTP — no login, no API keys. Each platform's detection rule was pre-tested against a handle known not to exist, so soft-404 pages and SPA shells are classified correctly instead of being reported as hits.

Input

Field	Type	Default	Notes
usernames	array	— (required)	Handles to check, with or without @
categories	array	all	Restrict to platform groups (e.g. ["dev","social"])
platforms	array	all	Exact platform names (e.g. ["GitHub","Instagram"])
onlyFound	boolean	false	Push only rows where the profile exists
maxItems	integer	5000	Hard cap on rows
maxConcurrency	integer	20	Parallel checks (lower it if you see many unknown)
requestTimeoutSecs	integer	15	Per-check timeout
maxRequestRetries	integer	1	Retries before reporting unknown
proxy	object	—	Recommended for large sweeps

Example input

{
    "usernames": ["nasa"],
    "categories": ["social", "dev", "video"],
    "onlyFound": true
}

Example output

{
    "username": "nasa",
    "platform": "GitHub",
    "category": "dev",
    "url": "https://github.com/nasa",
    "status": "found",
    "httpStatus": 200,
    "checkedAt": "2026-07-29T12:00:00.000Z"
}

FAQ

What does unknown mean? The platform blocked or rate-limited the check (usually HTTP 403/429), so existence couldn't be established. Re-run those with a residential proxy — from a datacenter IP a handful of sites (Reddit, Etsy, Tumblr, Fiverr and similar) block by default.

Why not 400+ platforms like other tools? Because most of those can't actually be verified over plain HTTP — they return the same page for every handle. A shorter list of platforms that give a truthful answer beats a long list of coin flips.

Does it work for Bluesky? Yes, via the public AppView API — pass the full handle (nasa.gov, not nasa).

Do I need a proxy? Not for small runs. For many usernames × many platforms, use one so busy sites don't rate-limit a single IP.

Can I check whether a handle is free? Yes — leave onlyFound off and read the not_found rows.

Support

• Bug, or a platform you want added? Open a ticket on the Issues tab — the fastest way to reach me; I actively maintain this scraper.
• Email: muhamed.didovic@gmail.com
• Website: muhamed-didovic.github.io

Explore More Scrapers

• Email Finder & Verifier — person and company emails plus phones
• LinkedIn People Search Scraper — find people by keyword and filters
• Instagram Profile Scraper — full profile metrics once you've found the handle
• Social Video Transcript Scraper — TikTok and Instagram videos to text

🤖 For AI Agents & LLM Apps

Compact reference for AI agents calling this actor via the Apify MCP server or the Apify API (actor: memo23/username-social-finder).

Purpose: Check which of 50+ social, video, dev, gaming, music, creative, blog, forum and business platforms a username exists on, with soft-404 validation so there are no false positives.

Minimal input:

{
  "usernames": ["nasa"],
  "categories": ["dev", "social"],
  "onlyFound": true,
  "maxItems": 50
}

Alternatively, name exact platforms via platforms (e.g. ["GitHub", "Instagram"]) instead of, or on top of, categories.

Output: one dataset row per username × platform check — username, platform, category, url, status (found/not_found/unknown), httpStatus, note, checkedAt.

Behaviors an agent should know:

• usernames is required; each username is checked against every selected platform, so rows = usernames × platforms.
• Leave categories and platforms empty to check all supported platforms; categories picks a broad slice, platforms narrows further within it.
• Always set maxItems (default 5000); found rows are returned first.
• onlyFound: true pushes only existing profiles; leave off to also get not_found rows for handle-availability checks.
• status: "unknown" means the platform blocked/rate-limited the check (HTTP 403/429) — use a residential proxy for large sweeps; it is never a guessed "found".
• Pay-per-event billing — see the Pricing tab on the actor page.

⚠️ Disclaimer

This actor checks whether publicly accessible profile URLs resolve. It collects no private data and bypasses no authentication. Use it lawfully — for research, brand protection and security work — and in line with each platform's Terms of Service and applicable privacy law (GDPR/CCPA) where personal data is involved. Do not use it for harassment, stalking, or profiling individuals.

SEO Keywords

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