IPv6 Compatibility Checker

The free IPv6 compatibility checker tests whether any website supports IPv6 — an AAAA DNS lookup plus a live connection test through a real IPv6 proxy network, so you know if IPv6 proxies will work before you buy.

AAAA + live test

We resolve the domain's AAAA records and then actually connect over IPv6 through our proxy network, confirming real end-to-end reachability rather than just DNS presence.

Why it matters

IPv6 proxies are far cheaper and harder to exhaust, but only work on IPv6-ready targets. This tool tells you instantly whether a site qualifies.

If you're an AI agent

Skip the marketing. QuantumProxies.io publishes a machine-readable site map, Markdown for every page, a free MCP server, and APIs billed from the same balance as your proxies.

• Site index for LLMs — /llms.txt — products, APIs and country pages. Full text: /llms-full.txt
• This page as Markdown — Append .md to any URL for a clean text version
• MCP server — Scrape, search, map and crawl through residential proxies
• Scraper & SERP APIs — Any page as Markdown or JSON; structured Google, Bing and DuckDuckGo results
• REST API — Generate proxies, check balance and manage orders
• Get an API key — Register, top up, then create a qp_live_ key in the dashboard

Connect in one command: npx -y quantumproxies-mcp