Monitoring 12,847 sites right now

Know the second
your site goes down.

DownGuard pings your website every minute from around the world and alerts you the moment something breaks — before your users notice.

No credit card • 2 sites free forever • Setup in 30 seconds

api.acme.com
124ms
UP
shop.acme.com
89ms
UP
blog.acme.com
Unreachable
DOWN

Everything you need.
Nothing you don't.

1-minute checks

We ping your endpoints as often as every minute and record response time.

Instant alerts

Email notifications fire the moment a failure is confirmed — no false alarms.

Global vantage

Checks run from our edge network so a single region outage doesn't fool us.

Smart retries

We verify a failure with a second check before alerting, so your inbox stays clean.

From zero to monitored in 30 seconds

01

Add your URL

Paste your site URL and pick how often to check it.

02

We monitor

Our worker pings your endpoint on schedule and logs every result.

03

You get alerted

When a failure is confirmed, you get an email within seconds.

Simple pricing

Start free. Upgrade when you need more.

Free
$0/mo
  • 2 monitors
  • 5-min checks
  • Email alerts
  • 7 days of history
Start free
Pro
$9/mo
  • 50 monitors
  • 1-min checks
  • Email + Slack
  • 90 days history
  • Status pages
Coming soon

Questions, answered

What does uptime monitoring do?

We send an HTTP request to your site on a regular interval and check if it responds correctly. If it doesn't, we alert you.

How fast are alerts?

Alerts go out within seconds of a confirmed failure. We retry once to avoid false positives from a single network blip.

What counts as 'down'?

Timeouts, DNS failures, connection errors, and any HTTP status outside 2xx/3xx are treated as downtime.

Do I need a credit card?

Nope. The Free plan covers 2 sites forever with no card required.