Our basic checks

All the checks we provide are accomplished externally by our monitoring servers. It means that we do not install or configure anything on your server. We do not need to have any special access to your server. 

 

We only check if any information that should be publicly available, really is available. If we get some false information or cannot access your server, it means that there is something wrong.

 

 

The DNS check

We take a look at your domain record in the whois database and figure out all the authoritative nameservers for your domain.


 

We check all of these nameservers. If all configured nameservers respond correctly, the status of this check will be green.


 

If we detect some misconfiguration, we will send you a warning. The status will be yellow.


 

If we detect any issue with your nameservers that lead to unreachability of your site, the status will be red and we will send you a notification. 


 

The mail check

First we check all the configured MX records within your domain.


 

Then we contact each of these mailservers and try to start a SMTP communication.


 

If all of your mailservers respond correctly, the status will be green.


 

If some of your mailservers fail, the status will be yellow and we will send you a notification.


 

If all mailservers fail, the status will be red and we will send you a notification.


 

The web check

Withing the web check we will test your webserver with the given URL and download this page. If not configured differently, it will be the main page. You may also configure a different URL, maybe even a special test page.


 

If the result code is 200 (OK), the status will be green.


 

If we receive any answer with a 40x code that reflects some error, the status will be red and we will send you a notification.


 

Any other result from the webserver will be reported as yellow.


 

The ping check

Testing some host by using "ping" may be one of the most  fundamental checks that a sysadmin wants to run against a server.

Although this type of check is a little beyond our idea to test the main three pillars (web, mail and dns) of an internet presence, you may add and configure this check manually. 

During the ping check we first have a look at your DNS and figure out all the IP addresses which correspond with the hostname you want to monitor. Then we start to send a ping packet to each of these IP addresses. If we get a response from all the addresses, the status of the check will be green. If one of the addresses does not answer, the status will be red and you will receive a notification.

At the moment, we cover IPv4 only. However, the support for IPv6 is already in the testing phase and it will be available very soon.