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With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial. .
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GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.
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A simple service to tell you whether a website is down.
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Graphite as a service.
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Self-hosted, easily-deployable monitoring and alerts service - like a lightweight PagerDuty.
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Network & Admin.
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PHP Server Monitor is a script that checks whether your websites and servers are up and running.
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Pingbreak is an original and free monitoring service.
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Simplify website performance and uptime monitoring with alerting, ssl check, chrome ux metrics, multi locations.
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Upzilla.co alerts you when your websites, services, or applications have some issues with availability or performance. Quick and simple setup, multiple notification methods, and it's FREE.
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Site down outage and downtime reports from SiteDown.co.
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Is it down can check if a website is down or is it just your PC that can not access it.
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UPDOWNTODAY allows you to check whether the website is down or not.
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Find out if a website is down for everyone or just you.
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A simple tool to check if a website or ip address is up or down.
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Monitor realtime from all around the world. Find peace of mind knowing your services are up and running.
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"Is It Down Right Now" monitors the status of your favorite web sites and checks whether they are down or not.
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Free tool to check whether a site is down just for you, or for everyone.
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A tool to check a site's status, DNS results, and routes from multiple locations.
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Receive instant alert notification when your website goes down. Easy to use user interface.