What are some alternatives?
When comparing NetNut.io and Luminati.io, you can also consider the following products
ProxyRack - More than 1,200,000+ unique monthly HTTP & SOCKS private proxies available.
Oxylabs - Data center proxies, residential proxy, Real-Time Crawler
LimeProxies - Premium Private Proxy Service Provider
Proxy.co - Access the office effortlessly, using your phone
ScrapingHub - Scrapinghub is the World's Leading Web Scraping & Developer Tool
Multiloginapp - Connect to websites as a multitude of different users