Telegram Username Checker Bot (PHP + SQLite + robust flow)
Endpoint: https://govo.top/test_bot.php
Set webhook:
https://api.telegram.org/bot7849383145:AAHY0ZLa44j1148094UZ3K0DwKzekyMSH8k/setWebhook?url=https%3A%2F%2Fgovo.top%2Ftest_bot.php