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Nov 5, 2026
11 min
Proxy Error Codes Explained: 403, 407, 429, 502 and More (2026)
A lookup table for proxy error codes 403, 407, 429, 502 and 504. See who returned each status, what it means, and the fix that actually works.
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ProxyHorizon Blog
Insights & Expert Guides
Tutorials, comparisons, and industry insights to help you master proxies, VPNs, and web scraping.
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Fresh off the press
Latest
Nov 5, 2026
10 min
What Is an IPv6 Leak? Why VPNs Leak IPv6 and How to Fix It (2026)
An IPv6 leak lets websites see your real address even with a VPN on. Here’s why dual-stack networks slip past some VPNs, how to test in two minutes, and how to fix it on every system.
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Latest
Nov 5, 2026
12 min
How to Schedule and Monitor Web Scrapers (2026 Guide)
Run your scraper on autopilot with cron, systemd, GitHub Actions, n8n or Apify, then catch silent failures with heartbeats and success-rate checks.
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289 posts
Nov 4, 2026
10 min
What Is a Proxy Chain? How Chaining Proxies Works (2026)
A proxy chain sends your connection through two or more proxies in a row. Here’s what each hop can see, how chains compare with VPNs and Tor, and how to build one.
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Nov 4, 2026
11 min
How to Choose a Proxy Provider: Checklist for 2026
Pool size and price per GB don’t pick a good proxy provider. This checklist covers success rate, true cost per request, traffic expiry, trials, sourcing and support.
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Nov 4, 2026
13 min
How to Store and Clean Scraped Data (2026 Guide)
Raw scraped data is always messy. Here’s a tested five-step pipeline to normalize, validate, deduplicate and store it, plus how to choose between CSV, SQLite, PostgreSQL and Parquet.
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Nov 2, 2026
10 min
What Is a Transparent Proxy? Anonymity Levels Explained (2026)
A transparent proxy passes your real IP to every site you visit. Learn what transparent, anonymous and elite proxies are, which headers give them away, and how to test yours.
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Nov 2, 2026
12 min
How to Scrape Websites With Node.js and Proxies (2026)
Build a Node.js scraper with Axios and Cheerio, add an authenticated proxy, rotate a proxy pool with retries, and scrape JavaScript-heavy pages with Playwright.
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Nov 1, 2026
9 min
What Is Double VPN (Multi-Hop)? Is It Worth It in 2026?
Double VPN sends your traffic through two VPN servers instead of one. Here’s how multi-hop works, who it actually protects, and how much speed it costs.
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Nov 1, 2026
10 min
How to Manage a Team in an Antidetect Browser (2026)
Roles, folder access, session locks and audit logs: how to run an antidetect browser team in Multilogin, GoLogin, AdsPower and Dolphin Anty without losing accounts to your own people.
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Oct 31, 2026
10 min
CSS Selectors vs XPath for Web Scraping (2026 Guide)
CSS selectors or XPath? See when each one wins for web scraping, with tested side-by-side examples, the truth about speed, and selector patterns that survive site redesigns.
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Oct 31, 2026
10 min
How Are Residential Proxies Sourced? Ethical Proxy Pools Explained (2026)
Every residential proxy IP is someone’s home connection. Learn how proxy pools are built, what makes proxies ethically sourced, and six questions to ask a provider before you buy.
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