How To Check Server Uptime: 15 Free Site Monitoring Services

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Server / Site uptime is the key indicator of how reliable is our web hosting provider. We all want our blog or website to be accessible anytime but it’s impossible for us to sit in front of the computer and monitor our site’s uptime 24×7 physically.

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When a downtime occurs, whether or not it can be solved immediately, as a site owner, we need to be the first to know in order to get prepared of the potential damages. However, most of the web hosting providers will not inform their customers about the downtime issue. As a result, we will have to monitor site’s uptime ourselves to get notified of any downtime occurrence.

For ease of reference, I’ve got 15 free site monitoring services here for you to explore:

1. StatusCake

StatusCake

Number of Sites you can monitor for Free: No limit
Free Period: No limit
Monitoring Intervals: Every 5 minutes
Alert Types: Email

StatusCake provides various monitoring services including feature rich Uptime Monitoring, Domain Monitoring, SSL Monitoring so on. They are one of the very few who offers unlimited sites monitoring service for free. If you need more features (SMS alert, selectable test location, 1 minutes / 30 seconds monitoring intervals etc), they have them all for you at decent prices.

2. Uptime Robot

uptime robot

Number of Sites you can monitor for Free: 50 websites
Free Period: No limit
Monitoring Intervals: Every 5 minutes
Alert Types: E-mail, SMS, Twitter, web-hook or push alert via mobile apps

Uptime Robot is launched on January 2010 and it is totally free since then. Their free plan allows you to monitor up to 50 sites at 5 minutes monitoring intervals. It’s one of the best free monitoring services currently. If you need a bigger plan, you can also check out their Pro Plan which offer 1 minutes monitoring intervals and many more other features.

3. Uptime Doctor

Uptime Doctor

Number of Sites you can monitor for Free: 5 websites
Free Period: No limit
Monitoring Intervals: Every 1 minute
Alert Types: Email or push alert via mobile apps

Uptime Doctor is a leading provider of website monitoring services. Their free service includes up to 50 free mobile push alert per month. Your uptime report will also be kept for 1 year under their free plan. It’s 1-minute monitoring interval is by far one of the shortest intervals available for free account plan as compared to other providers.

4. Pingdom

pingdom

Number of Sites you can monitor for Free: Up to 250 websites
Free Period: 30 days
Monitoring Intervals: Customizable, smallest interval is once every minute
Alert Types: E-mail, SMS, push alerts via mobile apps

Pingdom is reputable in the paid monitoring services with more than 700,000 users, it used to offer very basic free monitoring service for one website. However, it has since changed and is now offering free 30 days trial period across different plans (i.e. Starter, Standard and Professional). If you require advanced site monitoring, Pingdom is the one that you should give it a try.

5. Monitor.Us

MonitorUs

Number of Sites you can monitor for Free: 100 websites
Free Period: No limit
Monitoring Intervals: Every 30 minutes
Alert Types: Email, instant message, SMS or live voice

Monitor.Us launched in 2006 and it has over 150,000 user to-date. Monitor.Us is the freeware version of Monitis, a premium paid monitoring services. The main differences between the free and paid versions are the frequency of monitoring intervals, monitoring history and numbers of location that can be used to monitor your site uptime.

6. Service Uptime

Service Uptime

Number of Sites you can monitor for Free: 1 website
Free Period: No limit
Monitoring Intervals: Every 30 minutes
Alert Types: Email

Service Uptime‘s free account provides all necessary features for you to monitor your website uptime. All detailed reports are also available to free monitoring accounts. If your require SMS notification, it’s also available to free acounts in packs of 10, 50 or 100 alerts at special price. The monitoring is done via 10+ locations worldwide and your monitoring statistics is never deleted.

7. SiteUptime

SiteUptime

Number of Sites you can monitor for Free: 1 website
Free Period: No limit
Monitoring Intervals: Every 30 minutes
Alert Types: Email

SiteUptime allows you to select from 8 different geographic locations when setting up your site monitoring. You will also get phone or SMS alert if you subscribe to their Standard or Pro plan.

 8. Uptrends

uptrends

Number of Sites you can monitor for Free: 1 website
Free Period: 4 weeks
Monitoring Intervals: Every 5 or 10 minutes
Alert Types: Email, SMS or push alert via mobile apps

Uptrends established in 2007 and started its first five checkpoints in Amsterdam, London, Austin, Hannover and Sydney. Since then, they have grown their monitoring network to 136 worldwide checkpoints today. They offer wide range of premium monitoring services to cater for different customer’s needs. You may try their services on a 14 days trial (no credit card information is required).

9. Site24x7

Site24x7

Number of Sites you can monitor for Free: 5 websites
Free Period: No limit
Monitoring Intervals: Every 10 minutes
Alert Types: E-mail

Site24x7‘s free monitoring service is suitable for personal use. They also offer other paid monitoring services for advanced users with 30 days free trial period. One of their strengths is to perform monitoring via more than 50 locations across the world (limited to 1 location for free account). Visit them to find out more.

10. BasicState

Basic State

Number of Sites you can monitor for Free: 5 websites
Free Period: No limit
Monitoring Intervals: Every 15 minutes
Alert Types: Email

BasicState‘s free uptime monitoring service monitors http services. The test attempts to retrieve the home page of your site every 15 minutes interval. New sign-up is given 10 credits for free. You may use the credits available to monitor your site uptime (each site monitoring requires 2 credit points). You may purchase more credits if required.

11. Montastic

Montastic

Number of Sites you can monitor for Free: 3 websites
Free Period: No limit
Monitoring Intervals: Every 30 minutes
Alert Types: Email

Montastic offers simple website monitoring services for free. Their website is simple yet concise. They also offer different pricing plans for additional features. Visit them and see if they have what you need.

12. Are My Sites Up?

Are My Sites Up

Number of Sites you can monitor for Free: Up to 120 websites (Turbo plan)
Free Period: 15 days
Monitoring Intervals: Every 1 minutes
Alert Types: E-mail, SMS, RSS, web-hook or mobile apps.

Are My Sites Up offers premium monitoring services with 15 days trial period. You will get unlimited email and SMS notifications (in the US, International SMS is available) when your site is down. Sometimes, you may also get to know the reason of the downtime, when possible.

 13. 100Pulse

100Pulse

Number of Sites you can monitor for Free: 2 websites
Free Period: No limit
Monitoring Intervals: Every 15 minutes
Alert Types: Email, RSS feed, iGoogle Gadgets, Twitter or SMS

100Pulse started in 2002. It’s part of HIOX who offers wide range of web services (e.g. web hosting, online scripts etc). Other than site monitoring, they also offer mail server monitoring, FTP monitoring, Mysql monitoring etc (with charges). If you need more than just site monitoring, take a look at their website for detail.

 14. InternetSeer

InternetSeer

Number of Sites you can monitor for Free: 1 website
Free Period: No limit
Monitoring Intervals: Every hour
Alert Types: Email, SMS or pager

InternetSeer claims to be the largest website monitoring service with over 2.2 million sites worldwide. Aside from free account, they also offer premium monitoring services with 14 days trial period.

15. Uptimia

Uptimia

Number of Sites you can monitor for Free: 1 website
Free Period: No limit
Monitoring Intervals: Every 5 minutes
Alert Types: Email, SMS

Uptimia‘s free plan includes unlimited monitoring for 1 website at 5 minutes interval. If you require more in-depth analysis of your server performance, check out their premium services for transaction monitoring, full page load monitoring and real user monitoring. All the premium services come with 30-day free trial periods, no credit card information required.