Ping (ICMP)
Ping (ICMP) Ping is request message for protocol ICMP.

Ping is request message for ICMP (stands for Internet Control Message Protocol). This protocol is used by different network devices to check if a service or a device is available. Usually it is used for network diagnostics.

Ping monitoring allows you to keep an eye on your network infrastructure. Ping failure means broken connection to a network entity. It is handy to use Ping together with HTTP monitoring. In this case, you get additional information - for example, you know if the error is site-related, or the whole server has gone down. However, sometimes ICMP could be blocked for incoming requests, in order to prevent ddos attacks.

  • CM.Glossary.WebsiteMonitoring
  • CM.Glossary.Downtime
  • CM.Glossary.DistributedMonitoring
  • CM.Glossary.HTTP
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Service is very  reliable and performs as described in sales information.  User interface is simple and easy to use.

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snapshot - instrument for site supervision

How does the site look like when I’m not looking at it? What if it looks bad or does not work at all? HostTracker offers an instrument for site supervision - snapshot feature. Let’s take a look at its practical application.

How does the site look like when I’m not looking at it? What if it looks bad or does not work at all? HostTracker offers an instrument for site supervision - snapshot feature. Let’s take a look at its practical application.

What’s going on with my site?

Now it’s usual to use different services and applications for site maintenance and support, and sometimes they do report some problems. Often we feel the lack of information - Google Analytics or a similar service reports the downtime and renewal, but likely we will never know what exactly has happened. To investigate the issue, it is necessary to review the logs, write to hosting support and perform many others exhausting actions, frequently - with no result. There are also more interesting cases - when a site is not available from a certain country or is not downloaded completely. Such problems could long for months, or even years, till they are accidentally detected. One more important issue - content check. It will automatically review the content of the site and informed the responsible staff in case it has disappeared - for example, something has not been able to be downloaded from the database. But it’s hard to find the cause if the issue is short-term, because people usually do not sit in front of a laptop refreshing the page every minute. To resolve the problem, HostTracker offers a new feature - snapshot. It is very simple in use and does not require any additional adjustments. The service simply makes a snapshot of the checked page every time and saves it for review in two ways: page source code and html-view. This let you easily see how the page looks at the moment of failure, understand what’s wrong and fix the problem quickly without spending time for diagnostics. It saves lots of time for server administrator, developers and other concerned people.

How does it work

Doing the regular checks, our servers with predefined interval try to download the checked page. Additional algorithms could be used at the moment - the page could be parsed for keywords to make sure that this is the one we are looking for (there are cases when an error page returns 200, Ok, http code, or when redirection is activated in case of error). If there is no error - fine. But if there is, it will be written down into the HostTracker log, which is easily available from the web. Then, notification are sent and a snapshot is made.

 

The snapshots could also be found in the log - if several errors were detected, a different snapshot will be available from each one.


Though there are some remarks. First, we do not run javascript while making snapshot - same thing for regular check. Second, the error must be detectable. I mean, the server must return something. In case of timeout or connection error - snapshot will not help, and only a corresponding record will remain in the log.

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Home > Glossary > WebHosting
Web Hosting Web Hosting is a service which makes a site available from the Internet.

Web Hosting is a service which makes a site available from the Internet. It provides a physical place for your site (server) and Internet connection, also it may provide DNS services. Hosting companies differs from those who own huge datacenters to the small ones who rent couple of servers somewhere.

How to choose a hosting? You should pay attention to several important things: features, price, support and uptime.

Features include disk space, database usage, bandwidth, monthly traffic etc. Requirements totally depend on your site. It is clear that personal page has different requirements than a well-known online market.

Price. You may even find completely free hosting, just look if the service satisfies your needs.

Support. How long does it take to solve a problem with your site? What is an avarage response time? Your site is down for a week, and noone cares - is that possible?

Uptime - what is actual running time of the site.

Reliable hosting is very important for business. Using website monitoring services may help to evaluate the hosting service and check how often do the problems really appear.

  • CM.Glossary.Uptime
  • CM.Glossary.Downtime
  • CM.Glossary.WebsiteMonitoring
  • CM.Glossary.DNS
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