Instead: No String Attached Free Stock Photos
Yes, the images on these sites are licensed under the Creative Commons Zero (CC0) license. This means you can copy, modify, distribute and perform the photos. The pictures are free for personal and even for commercial use. All without asking for permission or setting a link to the source. So that attribution is not required. All in all the photos are completely free to be used for any legal purpose.
Yes. Oh, and did I mention that these are all high quality, large photos, mostly with print resolution?
StockSnap - https://stocksnap.io/
Pexels - http://www.pexels.com/
Unsplash - https://unsplash.com/
Gratisography - http://www.gratisography.com/
Negative Space - http://negativespace.co/
ISO Republic - http://isorepublic.com/ (very, very slight restrictions only)
Pic Jumbo - https://picjumbo.com/
New Old Stock Photos - http://nos.twnsnd.co/
Good Free Photos - http