Social Media Name Checker
Check username availability across 12 major platforms simultaneously.
No @ symbol needed. Results may take a few seconds while all platforms are checked.
Username Security and Brand Protection
Consistent usernames across platforms establish your digital identity. Cybersquatters register usernames matching real people or brands to sell them, impersonate them, or damage reputations. Registering your username on platforms you don't actively use (defensive registration) prevents this. A unified presence also improves discoverability — users and customers can find you consistently regardless of the platform they search on.
Social Media Impersonation
Impersonation attacks use your name, photo, and branding to deceive your followers, customers, or business contacts. Attackers may solicit money, spread misinformation, or conduct phishing campaigns. Most platforms have impersonation reporting mechanisms, but prevention is far more effective than remediation. Register your identity proactively across all major platforms, even ones you do not actively use.
OSINT and Username Enumeration
Security researchers and investigators use username lookups as part of OSINT (Open Source Intelligence) gathering. Consistent usernames across platforms create a digital footprint that links accounts to a single identity. Tools like Sherlock, Maigret, and WhatsMyName automate this across hundreds of platforms. Understanding this helps individuals protect their privacy and make informed decisions about their online presence.
Username Squatting
Some platforms allow reporting squatted usernames (inactive accounts holding your trademark). Twitter/X, GitHub, and others have trademark policies. Document your trademark registration before filing claims. Act quickly — once a squatter establishes history on the platform, removal becomes more difficult. For high-value brands, consider legal trademark registration before launching.
Frequently Asked Questions
How accurate is the availability check?
Results are based on HTTP status codes. Some platforms return 200 for all requests (including non-existent profiles), leading to "Unknown" results. Always verify directly on the platform.
Can I reclaim a squatted username?
Yes, if you hold a registered trademark. File a report through each platform's trademark policy process with documentation of your trademark registration.
What is OSINT?
Open Source Intelligence — the collection and analysis of publicly available information. Username enumeration is a common OSINT technique used by security researchers and investigators.
Should I register on platforms I don't use?
Yes, for brand protection. Defensive registration prevents squatters and impersonators from claiming your identity, even if you only post occasionally.
Is username checking legal?
Yes — checking public profile URLs is legal. The data returned is publicly accessible. Use results responsibly and in accordance with each platform's terms of service.
Username OSINT via CLI
Security researchers and investigators use open-source tools to automate username enumeration across hundreds of platforms. The most popular is Sherlock, a Python tool that checks a username across over 300 social networks, followed by Maigret which adds profile data aggregation.
macOS
# Install Sherlock via pip pip3 install sherlock-project # Search a username sherlock username123 # Output to file sherlock username123 --output results.txt # Check specific sites only sherlock username123 --site twitter --site github # Install Maigret (advanced) pip3 install maigret maigret username123
Windows
# Install Python first from python.org
# Then install Sherlock
pip install sherlock-project
# Run in PowerShell
sherlock username123
# Save results
sherlock username123 --output C:\Users\results.txt
# Use curl to check if profile URL exists
# (200 = profile exists, 404 = not found)
curl -o /dev/null -s -w "HTTP Status: %%{http_code}\n" https://twitter.com/username123
# WhatsMyName (web-based OSINT tool)
# Available at whatsmyname.appLinux
# Install Sherlock
pip3 install sherlock-project
# Or clone from GitHub
git clone https://github.com/sherlock-project/sherlock
cd sherlock && pip3 install -r requirements.txt
# Run search
python3 sherlock/sherlock.py username123
# Check HTTP status for a profile URL
curl -o /dev/null -s -w "HTTP Status: %%{http_code}\n" https://github.com/username123
# Batch check multiple usernames from a list
while read name; do
sherlock "USERNAME" --print-found
done < usernames.txt