Checking on actual devices is way more effective than checking your webpage's responsiveness using any other tool or techniques.
I will check responsiveness of any given webpage in the following 10 devices and provide you with screenshots.
- MacBook Pro
- Android Phone
- Android Tablet
- Windows Phone
- Windows PC
- Ubuntu Linux PC
Give me the link of the webpage you want to check and see how the page looks on all of the above devices exactly.