Just enter the website address and you will be able to drizzle out the sub domains of the entered website, like on the first prompt it will ask you to enter the website's address. for an example if you enter website address as https://www.google.com it will give you the output as 'https://www.google.co.in/imghp?hl=en&tab=wi', 'https://maps.google.co.in/maps?hl=en&tab=wl', 'https://play.google.com/?hl=en&tab=w8', 'https://www.youtube.com/?gl=IN&tab=w1', 'https://news.google.co.in/nwshp?hl=en&tab=wn', 'https://mail.google.com/mail/?tab=wm', 'https://drive.google.com/?tab=wo', 'https://www.google.co.in/intl/en/about/products?tab=wh', 'https://www.google.co.in/history/optout?hl=en', '/preferences?hl=en', 'https://accounts.google.com/ServiceLogin?hl=en&passive=true&continue=https://www.google.com/', '/advanced_search?hl=en-IN&authuser=0', '/language_tools?hl=en-IN&authuser=0', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=hi&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAU', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=bn&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAY', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=te&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAc', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=mr&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAg', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=ta&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAk', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=gu&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAo', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=kn&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAs', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=ml&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCAw', 'https://www.google.com/setprefs?sig=0_Lvc4KHhfZyveMjT0f7Hvyd3uW8g%3D&hl=pa&source=homepage&sa=X&ved=0ahUKEwiIm5fo0uvgAhU_4nMBHZJ8D0oQ2ZgBCA0', '/intl/en/ads/', 'https://www.google.co.in/services/', '/intl/en/about.html', 'https://www.google.com/setprefdomain?prefdom=IN&prev=https://www.google.co.in/&sig=K_FIIUnbtoiYsu36QS7tHa5z3fmG4%3D', '/intl/en/policies/privacy/', '/intl/en/policies/terms/'] which means it will show the output as its subdomains like google maps, google news, google mail, google drive and etc. hope you all like it.