Frequently asked questions (FAQ) [Servers-Monitoring.net]

Frequently asked questions (FAQ)

What does this service do?

It monitors your page's availability in the given interval and writes down the results. Those are afterwards displayed in the statistics. There is also the option to receive dropout alerts via e-mail etc.

What will happen in case of a dropout of the monitoring server or the on-the-way dropout?

In case of a dropout we try to monitor the page by two more servers across the internet (in the Czech Rep.). If all the replies are "not available" the monitoring result is claimed as a dropout. If by any case the monitoring server would disconnect the monitoring will not be made - this, of course, is looked after at all time.

Is the free version somehow restricted?

No, there are no restrictions. There is no time limit or any limit of the number of monitoring. But it contains only typical HTTP demand monitoring (of the web service) in a 10-minute interval. You can use this monitoring service for how long you want and how many times you want, though.

What is the difference between the absolute and common availability?

Absolute availability is a mathematically exact number - there's the number of dropouts (during a time period) and the number of monitored times. If they're mutually divided we get the value of the availability during the whole time period.

Common availability comes out of the absolute availability but takes some things into consideration - gives them various importances:

When has the data changed: dropouts (and all data) are less important the older they are. Today's values are of the most importance (1), those monitored half a year ago 2 times less important (0,5), the ones monitored three quarters of a year ago are 4 times less important (0,25), finally the ones older than a year are of no importance at all. Shortly this month's data is more important than the one that is almost a year old, the course is fluent, linear.
Availability during the night hours: data monitored between the 2nd and the 6th night hour (every address can change the time) are of half importance than other data. This comes out of the fact that much less visitors use internet during this time so the eventual unavailability is not that big of a problem.

What types of monitoring do you offer?

We offer 18 different monitoring services, for more see services.

What do I get for converting to paid monitoring?

Firstly it is more often which helps to analyze the availability better and mainly it let's you know there's been a dropout much quickly.
Besides you can monitor much more than just a web server, for more see services.

Paid monitoring automatically views the responses of the page therefore you can not only see when the server was not available but also the encumbrance.

How to convert to paid monitoring?

You subscribe some credit from which we will extract the price for the services. To find out how to pay see Credit (after registration). Once there is a credit you get access to all functions.

What is the difference between HTTP (head) and HTTP (get)?

The difference is in the type of the request. The most used request for downloading the web page is HTTP command GET. It means that there is the page download request for the whole web page including the head and all data, the page. But the data itself is mostly useless for the monitoring, encumber the link and rise traffic. The condition is recognized from the returned head code, eventually if the server responds at all. That's why for 99% of the HTTP server monitoring the request HEAD is enough and this is the method we prefer.

Nevertheless it is true that some oddly set-up servers will not respond to the HEAD request at all. Therefore there is the option of monitoring using the GET request.

This is the same with HTTPS. for more information see the HTTP specification..

For how long are the results being kept?

For payed services 1 year, for free services 3 months.

How can I recognize your robot in the statistics, what's his IP address?

The monitoring is primary from our server Moonlake, that's 89.29.122.29 (monitoring1.moonlake.cz) or 89.29.122.30 (monitoring2.moonlake.cz). In case of unavailability of this address we have other machines which can monitor. The robot sends the User-Agent "KyblUptimeMonitor v1.1 (http://www.servers-monitoring.net, Moonlake.cz, crawl)".

I have other questions, where can I ask?

You can contact us via e-mail. ICQ support is available to paying customers.

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