Open all files/photos from any URL directory
Many files on web pages are sorted numerically, such as image galleries, where each image file has its own number (www.rainer.li/12.jpg).
In many cases, there are many more hidden images or files in the same directory.
A simple trick to track the hidden files on web pages sometimes helps to add or subtract the numbers in the URL file (12 .jpg, 13 .jpg, 14 .jpg). The numbers can be typed individually by hand or you can simply use this tool to do the tedious and slow work.
Test it yourself. Each file automatically opens a new tab in your browser.
For this tool to automatically open the new taps, they must allow pop-ups in their browser.
Instructions can be found here: