Slack
Create an incoming webhook in your Slack workspace. Paste the hooks.slack.com/services URL into an alert channel.
Connect email, Slack, Discord, Telegram or HTTPS webhooks. Email alerts go only to your verified account email. Free includes three alert channels.
Create an incoming webhook in your Slack workspace. Paste the hooks.slack.com/services URL into an alert channel.
Create a channel webhook in server settings. Paste the discord.com/api/webhooks URL.
Create a bot with BotFather, start a conversation or add it to a group, then enter BOT_TOKEN|CHAT_ID. The chat ID may be negative.
Provide a public HTTPS hostname without URL credentials. Requests contain title, text, level, url, fields, data, product and sent_at. Responses outside 200–299 are failures; redirects are not followed.
Email alerts go only to your own verified account email. Verify it by signing in once through an emailed link. Chat channels and webhooks can send to other destinations.
Add a channel in the dashboard, send a test, then select it in each check’s settings. An unlinked channel receives no check alerts. Delivery has a five-second timeout and two retries. Store webhook URLs and bot tokens as secrets.
Free includes three channels. Paid plans allow more channels, with at most 50 linked to any one check. Pay monthly or yearly through Stripe Checkout without an account first; cancel any time from the billing portal.
20 checks free. No card. Built in Ireland.