If you are wanting tofind the EXIF data (information like shutterspeed, aperture, ISO, lens used, camera used,exposure compensation, etc.) for an image onthe internet, you can:
1. click on the image
2. copy the URL
3. paste the URL on http://regex.info/exif.cgi
And it will give you all of the information solong as the photographer has not blocked their EXIF data from being viewed.