UptimeRobot
Dashboard with 50 Monitors, Checked Every 5 Minutes, Totally Free. Monitor HTTP(s), Ping, Port and check Keywords. Get alerted via e-mail, SMS, Twitter, web-hooks or push. View uptime, downtime and response times.
Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider.
Free opensource website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider. You can check HTTP result codes and even contents of the checked pages. Website checking is done periodically using buildin cron mechanism. In case of a check failure, application will automatically send email to site administrator.
Productivity Developer Tools Networking and Admin
website-monitoring application-monitoring monitoring monitoring-software server-monitoring page-speed uptime-monitoring
Dashboard with 50 Monitors, Checked Every 5 Minutes, Totally Free. Monitor HTTP(s), Ping, Port and check Keywords. Get alerted via e-mail, SMS, Twitter, web-hooks or push. View uptime, downtime and response times.
Freemium Web
pagespeed is addon for firebug (debugger addon for mozilla firefox ) for analyzing of page loading process and suggesting to webmaster how speed up page loading. javascript obfuscating, image resizing, css merging and vise versa.
Free Open Source Mac OS X Windows Linux Chrome Firefox Firebug
Monitor your websites and APIs from multiple locations around the world and get notified by smart alerts. Get daily, weekly and monthly availability reports along with performance metrics.
Freemium Web
RapidSpike is an uptime and performance monitoring service for websites and web applications. Monitor, measure and test your digital platform eco-system from one dashboard. .
Commercial Web
Don't lose your customers because your service is down! Monitor your websites and cloud services from multiple geographic locations and receive instant alert when there is downtime or issue. Be proactive and keep your customers happy!.
Freemium Android Android Tablet
Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication.
Free Open Source Mac OS X Windows Linux
StatusCake Tools allows you to check the speed and load time of your website. Simply enter the website URL and check one of the locations from around the world you want...
Free Mac OS X Windows Web
The automated IT performance monitoring platform that enables companies to easily and cost-effectively monitor their entire IT infrastructure stack.
Commercial Web