Polypane
Develop, debug and test websites and apps twice as fast. Know for sure your sites and apps work everywhere and for everyone.
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StatusCake
Website monitoring solution that drives revenue & keeps you online. Track your uptime, page speed, domain, server, & SSL certificates.
BrowserStack
Give your users a seamless experience by testing on 3000+ real devices and browsers.
UserTesting
Get paid to share your perspective on websites and experiences and make money online in your spare time
Website Carbon Calculator
Track your websites carbon footprint.
Browsers.fyi
Stay up to date with new browser features with new browser versions and release notes as site, feed or API.
eZ Server Monitor
eZ Server Monitor (eSM) is a script for monitoring Linux servers. It is available in Bash version and Web application. In its web version, eSM is a PHP script which provides a web page containing information such as the operating system, the number of users connected to the server, the system load, CPU, memory RAM, available disk space, bandwidth usage, and especially the port monitoring services such as FTP, SMTP, Web, etc.
Tango
Create step-by-step documentation with screenshots, in seconds.
Wayback Machine Archive
Explore more than 651 billion web pages saved over time.
GO/NO-GO
Be sure you're ready to launch with this collection of site checking tools with one-click links.
Responsive Image Breakpoints Generator
Easily generate the optimal responsive image dimensions. One image for all screen resolutions and different devices is not enough. An image per pixel is too much - so how can someone automatically choose the optimal responsive image sizes?
Cypress
Fast, easy and reliable testing for anything that runs in a browser.
Bundlephobia
Find the cost of adding a npm package to your bundle. JavaScript bloat is more real today than it ever was. Sites continuously get bigger as more (often redundant) libraries are thrown to solve new problems. Understand the performance cost of npm install in a new npm package before actually adding it to your bundle.
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