My university Wi-Fi blocks certain sites I need for research. Any proxy services to help?

Quiero retocar la pintura de mi Renault. ¿Alguien sabe dónde comprar pintura específica para esta marca?

I’m developing a website and need to test how it looks in different countries. Can IPv4 proxies help with this, and what’s the best way to pick a provider for reliable testing?

I’m studying competitors’ websites for my startup, but some block me after a few visits. Can proxies help me browse freely, and what type should I use?