For Telegram bots
Your Telegram bot. Online all the time.
A small Linux server is enough for most bots. Long polling works out of the box, webhooks too with your own domain.
How big should it be?
One bot or twenty. Python, Node or Go. Back up by itself if it crashes.
Starts with the server.
A systemd service keeps the bot running: it starts on boot and restarts after a crash. Works the same for aiogram, python-telegram-bot, grammY or telegraf.
[Service] WorkingDirectory=/root/bot ExecStart=/root/bot/.venv/bin/python bot.py Restart=always RestartSec=3 [Install] WantedBy=multi-user.target
6 places to put it.
Put it near the people who use it. Every location costs the same.
Questions? Answers.
Not with long polling: the bot asks Telegram for updates itself and needs no public address. Webhooks need an HTTPS address, so you’d point a domain at the server and add a certificate.