Username Finder

What is a Username Finder?

A username finder is an automated checking tool designed to quickly determine if a username is available or already claimed across 400+ social networks. With CoreClaw, you can perform bulk availability checks with zero code, empowering OSINT investigations, brand monitoring, personal brand management, and social media research.

• ✅ 400+ Site Coverage - Extensive coverage across 400+ social platforms
• ✅ Fast Concurrency - High-speed results through concurrent requests
• ✅ Accurate Detection - Multiple detection methods (Status codes, error messages, response URLs)
• ✅ WAF Detection - Detects and handles Web Application Firewall (WAF) blocking
• ✅ Detailed Results - Provides HTTP status, response time, and error details
• ✅ Flexible Configuration - Adjustable timeouts, concurrency limits, and site targeting
• ✅ Content Filtering - Option to include or exclude adult (NSFW) content sites
• ✅ Bulk Checking - Support for checking multiple usernames simultaneously

Which platforms can you search?

How to use the Username Finder?

CoreClaw Username Finder handles proxy rotation, task scheduling, data standardization, and final delivery for you in the background. In just a few minutes, you can check username availability by following these steps:

1. Create a free CoreClaw account using your email
2. Open the Username Finder control panel
3. Enter the username(s) you wish to check
4. Configure check parameters (timeout, concurrency, NSFW inclusion, etc.)
5. Click "Start" and let our cloud servers handle the checking process
6. Download the results in JSON or CSV format

➡️ Input

Key Parameter Descriptions

Usage Examples

Example 1: Basic Username Check

• Username: john_doe
• Concurrency: 20
• Timeout: 30s
• Result: Checks 400+ sites and returns the status of the username on each platform

Example 2: Check Specific Sites

• Username: brand_name
• Target Sites: GitHub, Twitter, Instagram, LinkedIn
• Result: Only checks these 4 platforms and returns detailed status

Example 3: Include Adult Content Sites

• Username: search_term
• Include NSFW: true
• Show All Results: true
• Result: Checks all sites including NSFW platforms and returns complete results

⬅️ Output

For your convenience, output results are displayed in tables and tabs. You can choose to download the results in CSV/JSON format.

Status Type Descriptions

Example Data

{
  "username": "john_doe",
  "site": "GitHub",
  "status": "CLAIMED",
  "urlUser": "https://github.com/john_doe",
  "httpStatus": 200
}

FAQ

Which social network platforms are supported?

Including but not limited to:

• Social Networks: Twitter, Facebook, Instagram, LinkedIn, TikTok, etc.
• Professional Platforms: GitHub, GitLab, Stack Overflow, etc.
• Content Creation: Medium, YouTube, Vimeo, etc.
• E-commerce: Amazon, eBay, Etsy, etc.
• Tech Communities: Dev.to, Hacker News, Reddit, etc.

What detection methods are used?

• Status Code - Checks HTTP status codes (e.g., 404 = Available, 200 = Claimed)
• Message - Checks for specific error messages in the response
• Response URL - Checks if the request is redirected to an error or landing page

How does it handle Web Application Firewall (WAF) blocking?

The tool features built-in WAF detection that can:

• Automatically identify WAF blocks
• Mark results with a WAF status
• Provide detailed error information
• Avoid overwhelming target platforms with excessive requests

Can I check multiple usernames at once?

Yes. You can enter multiple usernames at once, and the system will bulk-check each one across all platforms. For optimal performance, we recommend checking 1-10 usernames at a time.

How do I check only specific platforms?

Use the targetSites parameter to enter the names of the platforms you want to check (e.g., GitHub, Twitter, Instagram). The system will then focus only on those platforms, significantly speeding up the process.

How does the concurrency setting affect the search?

• Higher concurrency leads to faster check speeds.
• The default concurrency is set to 20.
• Excessively high concurrency may cause some sites to reject requests.
• We recommend using the default value for most scenarios.

What are the common use cases?

• OSINT Investigations - Tracing a target's social media footprint
• Availability Checks - Checking if a desired handle is available before registering
• Social Media Research - Studying the distribution of brands or individuals across platforms
• Brand Monitoring - Monitoring the use of brand names across various networks
• Personal Brand Management - Unifying accounts across different platforms