<h2>Top tools for monitoring your eCommerce store!</h2>
When you're running a shop – whether it be an offline or online one – then you'll want to be kept appraised of what's going on, and learn as soon as possible of any weakness or failing in the system.

Let's examine some of the best tools that online retailers have in this regard.
<h3 class="list-heading">Zabbix</h3>
<a href="http://www.zabbix.com/" target="_blank" rel="noopener noreferrer">Zabbix</a> is a service which provides a comprehensive menu of monitoring options, and which allows developers to write bespoke scripts to check different aspects of the site.
<h3 class="list-heading">Appdynamics</h3>
<a href="https://www.appdynamics.co.uk/" target="_blank" rel="noopener noreferrer">Appdynamics</a> provides a peerless depth of monitoring into web applications and infrastructure, with deep and detailed reporting. It comes at a price to match, however.
<h3 class="list-heading">Logentries</h3>
<a href="https://logentries.com/" target="_blank" rel="noopener noreferrer">Logentries</a> differs from applications like Zabbix in that it reports error messages directly from the application reporting them. It's great for when you need detail for troubleshooting.
<h3 class="list-heading">New Relic</h3>
<a href="https://newrelic.com/" target="_blank" rel="noopener noreferrer">New Relic</a> will monitor how well an application is performing from within the server it's being hosted on, checking constantly for disk space, CPU usage, response time a request volume. It'll thereby provide very useful information.
<h4 class="list-heading">Scriptrock/UpGuard</h4>
<a href="https://www.upguard.com/" target="_blank" rel="noopener noreferrer">Scriptrock/UpGuard</a> allows you to check for differences between servers which should be identical, and thereby offers excellent protection against unwanted changes (be they made in error or through malice).
<h4 class="list-heading">Updown</h4>
This online service periodically checks your website by constantly sending an http head request to a specified URL. When the site stops working, you'll be notified via email or text. Simple, effective, invaluable.
<h4 class="list-heading">Pingometer</h4>
This paid-for service is slightly more complex; it boasts twelve different monitoring stations on continents around the world. It'll monitor your website's responsiveness to a wide range of different protocols.
<h4 class="list-heading">StatusOK</h4>
<a href="https://github.com/sanathp/statusok" target="_blank" rel="noopener noreferrer">StatusOK</a> differs from the competition slightly; it's an open-source solution which is self-hosted – but if you're so inclined, you can always set up a VPS to test your site's responsiveness to traffic from anywhere in the world.
<h4 class="list-heading">Pingdom</h4>
<a href="https://tools.pingdom.com/" target="_blank" rel="noopener noreferrer">Pingdom</a> is among the world's most popular monitoring tools. It boasts a network comprising more than sixty different monitoring stations, which check your site every minute. Pingdom will not just monitor whether your site is responding, but how quickly – so if something slows it down suddenly, you'll know about it quickly.
<h4 class="list-heading">Uptrends</h4>
<a href="https://www.uptrends.com/" target="_blank" rel="noopener noreferrer">Uptrends</a> makes use of even more monitoring stations than Pingdom, with more than a hundred and fifty spread across the globe. While it lacks a free version, the availability of advanced features like waterfall reports will justify the cost for many.

<strong>That's quite a list, do you use these already? Or are we missing any that you think need a mention? Comment below!</strong>