DNS
DNS DNS - domain name system, a system for locating a web site.

DNS - domain name system. This system helps to find a real server by virtual site name. The system is realized by the hierarchy of DNS servers, each of them holds information about specific domains and may delegate such role to lower stage servers. Let's take, for example, site www.host-tracker.com. The upper domain is .com, so the request is made to the server, which is responsible for all .com sites. It knows where each site is located, or at least, where is another server, which knows for sure. If you get "Server not found" message, that means no record exists on the DNS server for the site name you've requested.

Each time you enter an address into the browser - a DNS request is made, in order to find where the site is located. To make this process faster, DNS data can be saved into a cache. If you own a site and decide to change its name for some reason, or if you have just created the new one - you should keep in mind that DNS cache needs some time to be updated globally. Usually, it happens within couple of hours, but it can take up to 48 hours. That's why sometimes a newly-hosted site can not be visible for some time.

  • CM.Glossary.WebsiteMonitoring
  • CM.Glossary.Uptime
  • CM.Glossary.WebHosting
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I rely on HostTracker to monitor my servers so I can sleep at night

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- S.
How to activate API for your Host-Tracker account

HostTracker API uses widespread XML and JSON formats. Interactions with API are made by HTTP methods GET, POST, PUT, DELETE, PATCH.

To activate API for your HostTracker account, one should write a request to ht2support@host-tracker.com, with the login specified.

Host-tracker API

API stands for "application programming interface". It is one of the features for HostTracker website monitoring service, which is implemented in preset list of HTTP requests and HTTP responses for maintaining and adjusting HostTracker features for your convenience. It provides possibility to develop applications which will automatically cooperate with HostTracker service, instead of manual adjustments via user interface.
HostTracker API uses widespread XML and JSON formats. Interactions with API are made by HTTP methods GET, POST, PUT, DELETE, PATCH.

To activate API for your HostTracker account, one should write a request to ht2support@host-tracker.com, with the login specified.

REST API description:

https://www.host-tracker.com/api/web/help.html

SOAP API description:

www.host-tracker.com/api/soap/v1/help.html

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Home > Glossary > Uptime
Uptime Uptime is the period of time when a site performs well.

Uptime corresponds to the time when a site is accessible from the Internet. The opposite term - downtime - shows for how long a site has not been working during specified period of time. Usually uptime is measured in percents, and for period of time is choosen year. Percents over the year could be easily transformed into time values. Some typical values of uptime and corresponding period of unavailability during the year are shown here:

90% - 876 hours

99% - 87 hours, 36 minutes

99.9% - 8 hours, 45 minutes, 36 seconds

99.99% - 52 minutes, 34 seconds

So high uptime is really important. Even if it seems that 99% is pretty high value - it corresponds to several days of failure. If that happens in a row, many clients can be lost. Uptime value is usually guaranteed by web hosting, where the site is hosted. Website Monitoring may help you to increase the uptime and check if the value, declared by the hosting company, is real.

  • CM.Glossary.WebsiteMonitoring
  • CM.Glossary.Downtime
  • CM.Glossary.WebHosting
  • CM.Glossary.Availability
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