The short answer
Usually a little. Your traffic takes a detour: you to the proxy, the proxy to the website, and back. How much that costs depends on the proxy type and distance:
- Datacenter and ISP proxies: fast servers on fast networks. Often barely noticeable.
- Residential proxies: run through real home connections, so slower and more variable.
- Mobile proxies: carrier networks add the most latency.
How to keep it fast
Pick proxy locations near the target website, not near you; use sticky sessions to avoid repeated handshakes; and test before you buy.

Also known as
Proxy latency, proxy speed, proxy lag.
Learn more
- Proxy speed test
- Sneaker proxy speed
- Datacenter proxies
- What is a proxy timeout?
- RFC 9293, TCP
- RFC 9000, QUIC
- The curl manual (timing a request)
- Wireshark
Affiliate disclosure: Team of Monkeys is an affiliate of Geonode, Webshare and Rayobyte. Links and banners marked as sponsored, and links to Geonode, Webshare and Rayobyte in the text, use our referral links, and we may earn a commission if you buy through them, at no extra cost to you. Our explanations and comparisons are written to be useful whichever provider you choose.
Editorial note: Proxy providers change their pools, features and prices often, so treat any figures here as typical ranges at the time of writing and confirm current terms with the provider before you buy.
Editorial note: Proxy providers change their pools, features and prices often, so treat any figures here as typical ranges at the time of writing and confirm current terms with the provider before you buy.