Always watching, so you don't have to

Know the moment your
site goes down

Onlineisit monitors your websites, APIs, and services around the clock — and alerts you the instant something breaks.

Start monitoring free → See how it works
onlineisit — Dashboard
Monitors Up
●●●
Real-time status
Monitors Down
Instant alerts
via email
Avg Uptime (30d)
Your data here
after you add monitors
Total Monitors
Unlimited
add as many as you need
Monitor Status Uptime (30d) Avg RT (7d) Last Check
Production API
api.example.com/health
● UP
100%
142ms 30s ago
Marketing Site
example.com
● DOWN
Down since 14m ago
97.1%
2m ago
Checkout API
pay.example.com/status
● UP
99.9%
89ms 1m ago
api.example.com — 142ms example.com — timeout pay.example.com — 89ms cdn.example.com — 34ms auth.example.com — 211ms

Everything you need to stay up

Full-stack uptime intelligence — not just a ping checker.

🔁
Continuous Monitoring

Checks run on a schedule you control — from seconds to hours. Your monitors never sleep.

🚨
Instant Email Alerts

Get notified the moment a monitor goes down, and again when it recovers. No noise, no delays.

📊
30-Day Uptime History

See your uptime percentage over 30 days at a glance with visual bars per monitor.

Response Time Tracking

DNS time, connect time, TTFB, SSL handshake, and total response time — all recorded per check.

📋
Incident Timeline

Every outage is logged with start time, duration, and resolution. Acknowledge and close incidents with a trail.

📧
Weekly & Daily Reports

Automated email digests summarise uptime, incidents, and response time trends for all your monitors.

Not just HTTP checks

Monitor anything — from a URL to a cron job that needs to phone home.

🌐
HTTP / HTTPS Monitor

Checks any URL for a 2xx/3xx response. Validates SSL certificates and follows redirects automatically.

🔍
Keyword Monitor

Confirms a specific word or phrase appears in the page body — detects content failures even when HTTP returns 200.

📡
Status Page Monitor

Reads third-party JSON status pages (like statuspage.io) and maps their operational indicator to up/down.

💓
Heartbeat Monitor

For cron jobs and background workers. Your script pings a unique URL — silence means something broke.

🗺️
Sitemap Monitor

Crawls your sitemap and checks every URL in one pass. Catch a single broken page before your users do.

🔗
Multi-URL Monitor

Bundle multiple endpoints under one monitor. Useful for API surfaces or multi-region deployments.

Response time, broken down

Every check captures the full timing waterfall — not just total response time.

🔎
DNS Lookup
Time to resolve the hostname
12ms
🔌
TCP Connect
Time to open the TCP connection
28ms
🔒
SSL Handshake
Time to negotiate TLS
41ms
⏱️
Time to First Byte
Server processing + transfer start
98ms
📦
Total Response
Full download including body
142ms
Request waterfall — api.example.com
DNS
12ms
Connect
28ms
SSL
41ms
TTFB
98ms
Total
142ms
30-day history
30d agotoday

Up and monitoring in minutes

No agent to install. No config files. Just a URL and an email address.

1

Create an account

Sign up with Google or email. Verify in seconds and land straight in your dashboard.

2

Add your first monitor

Paste a URL, pick a check interval, choose your monitor type. Done in under a minute.

3

Get alerted when it matters

Onlineisit checks on schedule and emails you the moment something breaks — and when it comes back.

Your site is either up
or it isn't.

Be the first to know which.

Start monitoring free →