My site has been down for how long?

InternetSeer is the world's largest website monitoring service, providing accurate and reliable free hourly website monitoring to over 2.5 million websites worldwide.

"I wish to thank Internetseer for your excellent service and highly recommend InternetSeer. I caught your 'Alert' message of my site down to discover that the domain had inadvertently expired. As a result of your monitoring I avoided losing my domain and downtime by instantly inquiring and renewing the domain. Fortunately, the domain was 'live' within 30 minutes after renewal. Thanks once again, please do continue your excellent work, Michael J Ming"

For even better protection, we offer advanced 5, 15 or 30 minute checking though our advanced monitoring service. (Signup for a 14-day free trial on this page)

How it works

Our monitoring systems remotely check your website from several geographic monitoring stations at selected intervals. If the monitoring system is unable to reach the site, an email, cell phone or pager alert is sent to notify you of the problem. Some of the key web site monitoring services available include:

• Availability Monitoring
• Performance Monitoring
• Link and Image Checking
• Transaction Monitoring
• Historical and Detailed Check and Alert Reporting

Site Monitoring Features
InternetSeer @Watch Advanced Monitoring
Monitoring Frequency
24x per day 30/15/5 minutes
Monitored Protocols
HTTP HTTP, HTTPS, SMTP. POP3 and other Ports
Monitored Processes
Completes a
HEAD request
(1k html text)
Authentication, HTML/CGI-based login, HTTP/FORM
Post,Text String Validation and Transactional Processes
Weekly Daily, Weekly and Monthly and available online for 90 days
Alert Contact
Email, text, pager SMS cell phone & pager email, fax. Add-on service available: Atwatch 24/7 Live Advanced
Number of contacts
Unlimited, no added cost Unlimited, no added cost
Alert Frequency
Immediate Immediate or Verified
False Alarm Protection
Yes Alert Confirmation Protocol Protection
Standard Advanced Pro Enterprise
Availability Reports
check check check
Master Account Maintenance
check check check check
Variable Time zone Reporting
  check check check
Custom Reports using Client Name and Logo
  check check check
Customer Report Portal
  check check check
Suspension Scheduler
  check check check
Link Check
    check check
Image check
    check check
Broken Link Reporting
    check check
Hacker Check
User Performance Report
DNS Monitoring
Standard Advanced Pro Enterprise
60 Minute Checking
30 Minute Checking
N/A $12.99 / mo. $21.99 / mo. $33.99 / mo.
15 Minute Checking
N/A $21.99 / mo. $29.99 / mo. $37.99 / mo.
5 Minute Checking
N/A $33.99 / mo. $41.99 / mo. $49.99 / mo.
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Free Activation!

Click here to start your 14-day trial of our @Watch advanced monitoring service. No credit card is required.
Proven - Over 4 million satisfied users worldwide since 1999.
Powerful- Sophisticated technology that covers all the bases.
Simple - Protection that is up and running quickly.
Intuitive - You don't need an IT degree to use it!
Affordable - FREE standard monitoring or 3 advanced plans to choose from with plans as low as $12.99 per month