Username Checker By Serba

## Serba Marketing Username Checker

This Chrome extension helps users check username and domain availability across multiple targets in one compact workflow. It is useful for brand research, business username validation, and quick domain idea screening without manually visiting every site one by one.

## Key Features
- Check multiple usernames at once with comma-separated input.
- Username checks for YouTube, GitHub, Threads, TikTok, and Instagram.
- Domain checks for `.com`, `.id`, `.co.id`, and `.net`.
- Summary table showing available, taken, failed, and score totals for each username.
- Per-username detail table with direct target links.
- `Open All Link` action in both summary and detail sections for faster review.
- Progress log so users can monitor the checking process.

## Benefits
- Saves time during brand and username research.
- Makes cross-platform username checking faster in one place.
- Helps screen domain ideas without opening registrar pages one by one.
- Useful for marketing, branding, and naming workflows.

## How To Use
1. Click the extension icon in the Chrome toolbar.
2. Enter one or more usernames.
3. Choose the social platforms and domain extensions to check.
4. Click `Cek Sekarang`.
5. Review the summary and detail results, then open the links you need.

## Data Privacy
The extension does not collect login credentials, does not store personal user data, and does not send user data to a proprietary server. Requests are only made to the relevant public endpoints or target pages needed to perform the requested checks.

## Disclaimer
This extension is not affiliated with, sponsored by, or endorsed by YouTube, GitHub, Threads, TikTok, Instagram, Google DNS, or related parties. Platform names are referenced only to describe the supported availability checks.