Up or NotUp or Not
How It WorksFeaturesStatus PagesPricingFAQs
Realtime Global Uptime Probe

Is that website up?

Instant status checks. If a service is down, leave your email and we'll monitor it in the background until it stabilizes.

Status-
Latency-
Protocol-

Trusted for mission-critical uptime monitoring by engineering teams

Zero Overhead Workflow

Reliable availability tracking in 3 simple steps

You shouldn't have to configure complex alert routing or heavy agents just to know when your critical web endpoints go down.

1

Submit Any Endpoint

Drop your website, microservice, or API health check endpoint directly into our scanner. Sub-second probes verify live DNS, SSL certificates, and roundtrip HTTP latency.

2

Automated Background Probes

If an outage occurs, our distributed background engine tracks the incident every 60 seconds without false positives, filtering out temporary hiccups and upstream ISP flaps.

3

Instant Multi-Channel Alerts

Get notified over Email or Webhook immediately upon failure. Once your service recovers, we enforce a 60-minute verification window so you know it’s truly safe.

Unified Visibility

Designed for instant clarity and speed

Real-time telemetry gives your engineering team full situational awareness during critical production incidents.

Up or Not — Mission Control Console
Live Sync: 60s
Overall Uptime
99.98%
Avg Latency
124 ms
Active Probes
20 / 20
https://api.gateway.internal
Checked 12s ago • 84ms latency • HTTP 200 OK
● Operational
https://checkout.mystore.com
Checked 34s ago • 112ms latency • SSL Valid 82d
● Operational
https://auth.sso-provider.io
Checked 45s ago • Stabilizing (Up 18m / 60m window)
⏳ Stabilizing
https://webhooks.customer-relay.com
Checked 58s ago • 165ms latency • HTTP 200 OK
● Operational
Enterprise Grade Architecture

Engineered to prevent alert fatigue

Everything you need to detect failures before customers do, without waking up on-call engineers for false alarms.

60-Second Cycles

Background workers execute continuous round-robin probes every 60 seconds with strict timeout thresholds and real status code audits.

Flap & Stability Shield

Never get spammed by reboot cycles. When a site comes back up, we verify stable uptime for 60 minutes before declaring recovery complete.

Multi-Channel Alerts

Deliver incident dispatches via transactional Email and real-time Webhooks to Slack, Discord, PagerDuty, or custom internal APIs.

SSL & Security Audits

Automated certificate expiration warnings, HTTPS redirect verification, and security header auditing (HSTS, CSP, and X-Frame-Options).

Smart Incident Delivery

Reach your team where they already work

Choose alert preferences on a per-monitor basis. Receive clean email reports for management or dispatch structured JSON payloads directly to your DevOps webhooks.

  • Instant Incident Dispatch: Alerts sent in under 2 seconds from detection.
  • HMAC Webhook Signatures: Secure integration verified with pre-shared webhook tokens.
  • Full Outage Context: Status codes, HTTP response snippets, and DNS details included in every notice.
Upgrade to Pro
Email Alert Delivered
To devops-team@company.com • Sub: Outage Resolved (HTTP 200)
Custom Webhook Triggered
POST to https://hooks.slack.com/services/... (200 OK)
Telegram Incident Push
Instant alert delivered directly to @username
Stability Verification Active
Monitoring for 60 mins before closing ticket
Reliability Reviews

Loved by engineers who value peace of mind

See why modern founders and infrastructure engineers rely on Up or Not every single day.

Infrastructure Lead

“The flap guard is a lifesaver. With our previous monitor, a flapping pod would fire 20 alerts into Slack in an hour. Up or Not quietly verifies stability before calling all-clear.”

SaaS Founder

“I run 8 micro-SaaS products. For $4 a month, Up or Not handles everything I need: 20 monitors, instant email alerts, and zero complicated setup.”

Lead DevOps

“The instant one-off checker in the header is pure genius for quick customer support tickets, while our background dashboard keeps our staging clusters in check.”

Public & Private Status Pages

Turn downtime into transparency & trust

Keep your users, customers, and internal stakeholders in the loop with stunning, real-time status pages that reflect your brand.

  • Branded & Custom Domains: Host your page on status.yourcompany.com with your logo, colors, and custom CSS.
  • Automated 90-Day Uptime Bars: Granular day-by-day availability history with response latency trends.
  • Incident Communication: Post real-time status updates, scheduled maintenance notices, and resolution post-mortems.
  • Subscriber Notifications: Let customers subscribe to email, SMS, or webhook updates so your support inbox stays clear.
Create Your Status Page
https://status.acmecloud.io
SSL Encrypted
AC
Acme Cloud Systems
Real-time service availability
Subscribe to Updates
All Systems Operational
99.99% Uptime (Last 90d)
Global REST API & WebhooksOperational
90 days ago100.0%Today
Customer Auth & SSO PortalOperational
90 days ago99.98%Today
Global CDN & Static AssetsOperational
90 days ago100.0%Today
Simple, Transparent Pricing

Scale your monitoring without the enterprise bloat

Start for free with instant checks or unlock continuous 24/7 background monitors with Pro.

Free
For developers and individuals needing ad-hoc availability checks and basic recovery notifications.
$0/ forever
  • Instant sub-second HTTP/HTTPS probes
  • Down-event email recovery notification
  • 60-minute stability verification
  • On-demand Security & Performance reviews
Use Free Scanner
Most Popular
Pro
Continuous 24/7 background monitoring with multi-channel alerts and team account access.
$4/ month
  • Up to 20 continuous monitors active 24/7
  • 60-second probe interval background checks
  • Email & Webhook alerting per monitor
  • Custom check names, SSL expiration & latency tracking
  • Account security with Email Two-Factor Authentication (2FA)
Get Pro ($4/mo)
Business
For growing companies and agencies demanding branded public status pages and ultra-fast detection.
$12/ month
  • Upgraded to 50 active sensors / endpoints
  • 30-second rapid check interval option
  • Public & Private Status Pages included
  • Custom domain mapping (e.g. status.yourbrand.com)
  • Incident communication & subscriber broadcasts
  • Priority multi-channel email, SMS & webhook routing
Get Business ($12/mo)
Available on iOS & Android

Monitor your critical infrastructure on the go

Get instant push notifications the second an outage strikes. Track real-time recovery status, inspect latency spikes, and acknowledge incidents right from your phone.

  • Sub-second Push Alerts: Native alerts that bypass noisy email inboxes.
  • Live Recovery Timers: Watch the 60-minute stability window count down in real time.
  • Biometric Login: Fast, secure access with Face ID and fingerprint sign-in.
Download on theApp Store
GET IT ONGoogle Play
Up or Not
LIVE 60S
System Health
99.98%
19 of 20 monitors operational
api.production.io
72ms • HTTP 200 OK
UP
auth.cluster.com
HTTP 502 Bad Gateway
DOWN
checkout.store.io
118ms • SSL Valid 82d
UP
cdn.assets-edge.net
44ms • HTTP 200 OK
UP
Push Notification
auth.cluster.com recovered (UP)

Start monitoring your services in seconds

No credit card required to check an endpoint. Join thousands of developers who trust Up or Not for reliable uptime detection.

Check an Endpoint NowUpgrade to Pro →

Questions before you start

Frequently Asked Questions

These are the practical questions worth answering early. For help specific to your domain, architecture, or custom webhook configuration, speak to the team.

Ask another question

When a down service recovers, false alarms frequently occur if servers are rebooting or looping under high load. Up or Not immediately alerts you that recovery has begun, then enforces a continuous 60-minute monitoring window. If the service drops during this time, we notify you immediately and reset the clock.

Free Instant Checks allow anyone to test any URL on demand and receive a one-time recovery alert if it is currently down. Pro Monitoring ($4/mo) gives you 20 continuous background monitors checked round-robin every 60 seconds, custom monitor names, and per-check Email or Webhook alerts.

Incident dispatches are triggered within 2 seconds of detection. Pro monitors run every 60 seconds, meaning outages are detected and notifications dispatched almost immediately to your specified email address or team webhook (Slack, Discord, PagerDuty, or internal endpoint).

Yes. In your Dashboard, you can select whether each individual monitor alerts via Email, Webhook, or both. You can configure your custom Webhook URL in your Profile Settings, and we dispatch structured JSON payloads containing outage status, HTTP codes, latency, and timestamps.

Yes! You can enable Email-based Two-Factor Authentication directly from your Profile & Settings page. When active, every sign-in requires entering a secure, single-use 6-digit code delivered to your verified email address.