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.

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Very useful for my company's website verification whether it's up or down and be notified immediately about it, even if using a free account!

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- T.
Blacklisted again? Why does this keep happening to me?!

We’re happy to announce that this tool has just got even more awesome! Now you can use our DNSBL check tool as a one-time job or on a regular basis. It means you can keep your IP address in a continuous check against dozens of the most popular blacklists. 

Previously, we have introduced one of the “Check site instantly ” board functions -  DNSBL - which helps you find out whether your server is blacklisted before it gets out of control.

We’re happy to announce that this tool has just got even more awesome! Now you can use our DNSBL check tool as a one-time job or on a regular basis. It means you can keep your IP address in a continuous check against dozens of popular blacklists. 

This can significantly ease your website’s life online, moreover, bring balance into it.

New options

With the new extension of the DNSBL check tool, it's become easier to test your website accessibility, as well as, server message deliverability.

For example, suppose your IP address is currently on the DNSBL monitoring. The moment your website is found blacklisted, our system will report back to you all the detailed information on the check results - the name of the blacklist (which one of the DNS-based anti-spam lists recognize you as a source of spam activity) and the reason for listing (this information is public and provided directly by DNSBL databases).

All this will allow you to quickly clean up “the mess”, speed up the process of domain removal (delisting), protect your business reputation and, by extension, prevent recurrence of such a problem in the future.

HostTracker, as a website monitoring service, always keeps moving forward - our list of DNSBL servers is constantly updated.

The whole setup process will take you only a few minutes to complete:

Some Secrets of Activating Blacklist Monitoring

The good news is that you’re opted to activate the DNSBL check for already existing monitoring tasks. All you need to do is to put a tick mark in the box next to “DNSBL check” field when editing or adding a check task.

Once enabled, HostTracker starts gathering information about your website availability and checking whether your IP is currently listed. A Contact Group for notifications will be automatically added to the current test task. If our system finds your server blacklisted, you’ll immediately receive a message with the relevant information.

We hope that with such a tool you’ll enjoy the convenience, simplicity and quality of our all-in-one monitoring service. If you have any questions or suggestions, feel free to contact us - we’re always looking for ways to improve! 

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Time Duration Checks
2016-05-20 05:40:03 43 sec(s) 1 Click to add comment
2016-05-05 14:11:39 42 sec(s) 1 Click to add comment
2016-04-28 06:10:05 43 sec(s) 1 Click to add comment
2016-04-18 04:37:31 43 sec(s) 1 Click to add comment
2015-07-18 20:53:12 30 min(s) 0 sec(s) 3 Click to add comment
2015-05-30 05:21:48 1 hour(s) 1 sec(s) 3 Click to add comment
2015-05-30 01:41:22 2 hour(s) 1 sec(s) 6 Click to add comment
2015-05-05 21:16:31 1 min(s) 28 sec(s) 2 Click to add comment
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