407 Proxy Authentication Required: what it means and how to fix it
Getting HTTP 407 from a proxy? Learn what Proxy Authentication Required means, then check credentials, the IP allowlist, and special characters in the password.
Blog
Practical guides to proxies, marketing, and web scraping from the Top Proxy team.
Playwright proxy: browser and context configuration
How to set a proxy in Playwright at browser or context level, pass credentials, use SOCKS5, bypass hosts, confirm the exit IP and fix common proxy errors.
Python requests proxy: authentication, timeouts and errors
How to route Python requests through an HTTP or SOCKS5 proxy: the proxies dict, username/password auth, environment variables, timeouts, and what ProxyError, 407 and SSLError actually mean.
What are residential proxies and how do they work
Residential proxies exit through consumer ISP addresses. This explains pools, sticky sessions, what sites see, and what to ask a provider before you buy.
4 min
Sticky vs rotating proxies: session control explained
Sticky vs rotating proxies: how per-request and timed rotation work, when a sticky session beats a new IP, how cookies interact with IP changes, and how to test a session ID yourself.
SOCKS5 vs HTTP proxies: protocols, DNS and compatibility
SOCKS5 vs HTTP proxy explained: how HTTP CONNECT and SOCKS5 tunnels differ, where DNS gets resolved, which clients support which auth, and how to test the protocol you bought.
Residential vs datacenter proxies: which one do you actually need
Datacenter IPs are fast hosting addresses. Residential IPs look like household broadband. Use this split to pick an origin before you pick a vendor.
4 min
ISP proxies vs residential proxies: static IP or rotating pool?
What ISP proxies mean, how a static IP differs from a sticky residential session, and how per-IP and per-GB billing change the choice for long sessions.
How to check if a proxy works (and whether it leaks your IP)
A proxy can answer and still leak your real IP. Check the exit, DNS, WebRTC, protocol, and blocklists before you put the endpoint in production.
4 min
Best proxies for web scraping in 2026: a buyer's checklist
A 2026 scraping buy starts with the target, not a vendor. Use this checklist for origin, session, geo, billing, and a live test before you scale.
5 min