What's the difference between residential, ISP, datacenter, and mobile proxies?

Here’s the practical difference:

1) Residential proxies

• IP source: Real home internet connections from ISPs assigned to households.
• Looks like: A normal person browsing from a home.
• Pros: Harder to detect/block, good for geo-targeting and anti-bot resistance.
• Cons: Usually slower, more expensive, and can have less consistent uptime.

2) ISP proxies

• IP source: IPs owned by residential ISPs, but typically hosted in data centers.
• Looks like: Residential ISP IPs, but with datacenter-level speed/stability.
• Pros: Good balance of legitimacy and performance; often faster than residential.
• Cons: Can still be identified by some anti-abuse systems as non-home infrastructure.

3) Datacenter proxies

• IP source: Cloud providers or data centers, not tied to home internet.
• Looks like: Server traffic, not a household user.
• Pros: Fast, cheap, scalable.
• Cons: Easier to detect and block, often limited on sites with strong anti-bot systems.

4) Mobile proxies

• IP source: Mobile carriers (4G/5G) through phones or cellular networks.
• Looks like: Traffic from a mobile device on a cellular network.
• Pros: Very hard to block, often high trust because IPs are shared among many mobile users.
• Cons: Usually the most expensive, can be slower, and IPs may rotate frequently.

Quick comparison

Type	Best for	Speed	Cost	Detectability
Residential	Web scraping, geo testing, account tasks	Medium	High	Low
ISP	Stable scraping, e-commerce, sneaker sites	High	Medium-High	Low-Medium
Datacenter	Bulk tasks, monitoring, high volume	Very high	Low	High
Mobile	High-trust actions, toughest targets	Medium-Low	Very high	Very low

Simple rule of thumb

• Need cheapest and fastest? Datacenter
• Need a good middle ground? ISP
• Need to look like a real home user? Residential
• Need maximum trust / hardest to block? Mobile

If you want, I can also explain which one to use for scraping, sneaker sites, ad verification, or social media accounts.