Isaimini (also known as Tamilrockers in some contexts) is a notorious piracy site that hosts copyrighted content without permission. While it is popular for its easy access to dubbed versions of Hollywood hits, using such sites carries significant risks:
The effect was instant. Viewers who had been watching the pixelated "Collection" suddenly saw the real Shrek: the mud, the layers (ogres have layers), the actual animation. The Isaimini traffic plummeted. The Compressor King screamed as his low-res empire collapsed. Without bad copies to corrupt, his form dissolved into a cascade of "404 Not Found" errors. shrek isaimini collection
Currently hosts the first four films, though availability can change periodically. 4K UHD Blu-ray: Isaimini (also known as Tamilrockers in some contexts)
It began not with a roar, but with a whimper—a slow, buffering circle of death. The Isaimini traffic plummeted
Apple TV / iTunes: High-definition digital versions are available for purchase.