Availability
Availability Availability of a site shows if a site is accessible from the Internet.

Availability of a site shows if a site is accessible from the Internet. This term is also about access to a server, database or another entity. As all objects in the Internet are based on comlicated infrastructure, nothing can be available always. The question is how to measure it, what is normal and if we may affect it anyway. The measurement of availability is connected to terms Uptime and Downtime, which show for how long a site is unavailable. However, these values can not create the full view of the situation. There could be many reasons of unavailability - server or connection problems, application error, overload of the site and so on. To avoid or shorter the failures, it is needed to supervise the site and analyze the errors, if they happen. For these purposes there are special monitoring tools, which help to increase to availability of the site, collect statistics and provide necessary information about the errors for fast repair. These tools are called Website Monitoring services.

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Very usefull service, helps us to monitor activity of our sites.

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- A.
Some secrets of content monitoring

HostTracker provides the best practice for monitoring both content changes and website availability. HostTracker’s tools allow you to check whether your webpage loads correctly and test it for errors as frequently as you’d like. Additionally, you'll know:

▶ Why do we need that?

▶ Service Settings;

▶ Content Check Methods.

HostTracker provides the best practice for monitoring both content changes and website availability. HostTracker’s tools allow you to check whether your webpage loads correctly and test it for errors as frequently as you’d like. Moreover, our service will be the best assistance in tracking websites with complex structure.

Why do we need that?

With “Content Check” you can spot the presence/absence of specific words on your page, as well as, to monitor the integrity of the website. However, it shows that it is insufficient to enable clear conclusions about the webpage performance. And there will certainly come a point in the life when questions like these arise: “Does the data load completely from the database?” “Are there any missing items on my page?” “What if my website is being hacked right now?” etc.

Little time for writing a simple script on your site - and you can check whatever you want. Server scripts come in handy when there is a need to keep an eye on any changes in website performance. To illustrate, you can write a script which will display “OK” provided everything is operating fine or there is enough disk space. If it happens that the website seems to be available, but actually “Error connect to mysql” pops up, then it’s highly recommended to tune the monitoring function for tracking the absence of a word, in particular, the word “Error”. To the boot of all that, this function can be used as a stopgap to identify obscene comments or suspicious activity until more sophisticated alternatives can be found. Notably, unwanted activity can be tracked by detecting the keywords of virus scripts.

The “Content Check” tool is easy to use and the results are crystal-clear for understanding. Moreover, our service is cloud-based, so you don’t need to install any additional software. Interestingly, the same check let hit HTTP load-testing and collects all statistics you need. Simultaneously, you can carry on website speed and response time tests and, by extension, pinpoint whether your IPs is blacklisted with one of nearly seventy DNS based blacklists.

Service Settings

Are you ready to start monitoring your website content? Let’s go! First and foremost, type the URL of your website into the space provided (or click on “Add list” - if you need to monitor a bulk of websites). Please, pay attention to the “Content Check” field – complete blank space with keywords you wish to monitor, use commas to separate words. It’s worth noting that HostTracker will keep you always updated on your webpage performance, and if, for instance, the presence/absence status of the certain phrases ever changes, you’ll be notified immediately by email and/ or by phone.

Additionally, there are some additional content monitoring options. The first advantage of using them is that, they give you the opportunity to choose only words or phrases that you want/don’t want to show on your website. The second advantage is that, in case of defining a series of keywords, both the disappearance of all words and a single one cause the error. A tick next to “Follow redirect” reflects that the request is forwarded to the target page (defined in the Redirection).

Methods

For more configuration options, click on “Advanced options” drop-down list. Make sure your desired method is set up in the “HTTP method” area.

Available HTTP methods:

  • GET (default parameter value) - is used to retrieve information from the Request-URI for keywords search.

  • POST – gets a content body used to send specific parameters and data.  It tests the functionality and correctness of the website forms.

To sum up, HostTracker incorporates a lot of powerful tools - you're bound to find something you'll like!

 

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Home > Blog > blacklisting

Anyone can be blacklisted – so what can you do? How can you detect such problem? Are there any protection mechanisms? This is what this article is about.

Are you sure that your domain isn’t currently listed with some anti SPAM-database? We recommend you to check this out!  As you can be one of those who accidentally fall into being blocked due to spreading spam, malware, viruses or just having dangerous, illegal or prohibited content (links to such content) hosted on their pages. Apparently, anyone can be blacklisted – so what can you do? How can you detect such problem? Are there any protection mechanisms? This is what this article is about.

Why is this happening?

There are tens of thousands of different DNSBL-servers up for grabs out there and they all have their own set standards and criteria for which IP should be blacklisted. Moreover, these conditions are constantly changing. Therefore, there’s no guarantee that even a law-abiding domain which meets all standards of copyright and trademark laws, the laws of privacy and publicity, and other applicable regulations and statutes of law, one day wouldn’t be filtered out by the search engine as one that spreads spam.

Actually, HostTracker’s team recently faced the risk of being banned too. HostTracker, in its capacity as a website monitoring service, sends daily many various reports to the people that requesting them, hence it was easy to determine that some of our emails hadn’t been delivered and were dumped into a spam folder.

So what should you do?

Understanding the problem is the first step to fixing it. So it’s crucial to be aware of the warning signs of listing threat and be able to quickly take steps to cut back if you recognize them. Since we recommend adopting our new feature - "DNSBL" on the "Check site instantly" bar - we have implemented just for you:

This option is not exactly brand new, as there are dozens of different check services out there (for instance, Mxtoolbox), which offer a convenient help in testing whether your domain is on some blacklists. But soon we realized that we also needed to arm HostTracker with this check, as without having had such tool in place, we were flying blind.

In light of what was written above, we provide the illustration of how the "DNSBL" check works:

If HostTracker detects some suspicious activity from your IP address, you’ll be notified immediately with an alert of a possible listing reason. For you it means - the ability to track the reason why the site was blocked to its origins.

Usually, the domain will be blocked not at once but only after a thorough analysis of many factors. If you have already discovered your IP on one or more blacklists, don’t panic, more often than not, all you need to do is to follow their specific removal process. That implies, you should visit the corresponding blacklist's website and, following the removal instructions, enter the domain name and press "Delist". Additionally, you may need to contact the blacklist with a removal request. Note that, previously you have to resolve all issues that caused the blacklist.

So, if you happen to discover your IP address involved in spamming – resolve the underlying issues and you’ll be removed automatically, once a certain period of time elapses. How to stay protected and off of blacklists? The best option is to use PTR or SPF for messaging, as this’ll eliminate the likelihood of your domain name getting fraudulently spoofed and abused by spammers, or blocked for appearing to use a dynamic IP address.

There's no single cause of being blacklisted. Generally speaking, if your IP has been tagged illegal accidentally, the removal process won’t take much time and effort. But it is essential to be proactive, so that to be able to act fast and be in tune with such situations. The sooner you find out about the issues, the easier they are to deal with and the more likely that your domain name won’t be deemed illegal among the entire set of DNSBL databases. Use our new option "DNSBL" on the "Check site instantly" bar to be always aware of the "status" of your resource and never be tossed and turned by the tides of website hassles and outages. Remember, we’re looking forward to any interesting comments and suggestions regarding our service and its work.

 

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