Know before your client does.

Add one line to the end of a cron job, or paste a URL. When something stops, you hear about it on Telegram, Slack or email — before the person who pays you does.

Start free — no credit card Read the docs

crontab -eserver-01

# nightly database backup

0 3 * * * /opt/backup.sh && curl -fsS checkmeup.net/ping/k7f2c9

03:00 + 5 min grace, no ping

Checkmeupvia Telegram03:05

nightly-backup missed its ping

Expected at 03:05 UTC · missed by 18s

checkmeup.net · live

3090 days agoToday

Six monitor types, one dashboard.

What each one watches, how often it looks, and when it wakes you up.

Monitor	Watches	How often	Alerts you when
Cron job monitoring	A ping your job sends when it finishes	your scheduleplus a grace period	A ping is later than the grace period you chose, or a started run never finishes
Uptime monitoring	A URL: its status code, a keyword, or JSON fields	1 min5 min on Hobby	The response is an error, too slow, or missing what you expect
SSL expiry monitoring	The certificate on port 443	daily	It expires in 30, 14 or 7 days, or is already invalid
Domain expiry monitoring	The domain's registration	daily	It expires in 30, 14 or 7 days, or already has
Port (TCP) monitoring	A raw TCP connect to host:port	1 min5 min on Hobby	The port stops answering — or, for one that should stay closed, starts
DNS record monitoring	An A, AAAA, CNAME, MX, TXT or NS record	1 min5 min on Hobby	The record changes or stops resolving

What the 03:00 backup's alert looks like.

The same miss, as it reaches Telegram and a webhook. Email, Slack and SMS carry the same facts; SMS is on paid plans. How each channel works →

Checkmeup03:05

nightly-backup missed its ping

Schedule:: 0 3 * * *
Expected at:: 03:05:00 UTC
Missed by:: 18s

Webhook · signed with HMAC-SHA256 of the body

POST /hooks/checkmeup HTTP/1.1
Content-Type: application/json
X-Checkmeup-Signature: 7c1e9a…f03b

{
  "eventType": "down",
  "monitorName": "nightly-backup",
  "monitorType": "cron",
  "reason": "missed its ping — expected at 03:05:00 UTC, missed by 18s",
  "timestamp": "2026-10-15T03:05:18Z"
}

Status pages

Give your clients a page they can bookmark.

Create a branded status page for every client site. They see uptime, incidents, and maintenance windows — you stay in control, and it looks like your work.

Create a status page →

Every page has a live badge for a README or a client's footer. This one is ours:

[![status](https://checkmeup.net/status/checkmeup-net/badge.svg)](https://checkmeup.net/status/checkmeup-net)

Acme Shop status

All systems operational

acme-shop.com Operational

api.client.io Operational

backup: nightly Operational

Pay for monitors, not seats.

Hobby is free for 10 monitors, no card. Paid plans check every minute and add status pages, channels and SMS.

See full pricing details →

Plan	HobbyFreeYour own side projects	Solo$9/moA freelancer with a few clients	Most popularStartup$29/moA small agency	Enterprise$99/moAn agency with a page per client
Monitors
Monitors	10	30	100	1000
Fastest check
Fastest check	5 min	1 min	1 min	1 min
Status pages
Status pages	1	3	10	100
White-label status pages
White-label status pages	—	✓	✓	✓
Notification channels
Notification channels	5	20	50	100
SMS credits / month
SMS credits / month	—	10	30	100
	Start free	Start Solo	Start Startup	Start Enterprise

Every plan: all six monitor types, projects, execution logs, incidents, maintenance windows, and Telegram, email, Slack and webhook alerts.

Find out whether tonight's backup ran.

Free for 10 monitors, no credit card. Paste the curl line and you're done.

Create free account →