Browser & Network Check

Use this page to see the basic details of the browser you’re using and your network.  If we ask you to run this check, just click Copy details and paste the results into your reply to us. That gives our support team everything they need to diagnose the issue quickly.

What each item means (and why we check it)

Device & browser

• JavaScript — Shows whether JavaScript is running. Many modern sites rely on it, so “Enabled” is expected.
• Browser — The application and version (e.g. Chrome 140). Some issues are version-specific.
• Operating system — Your OS (e.g. Windows 11, macOS). Helps us reproduce your setup.
• Device type — Desktop or Mobile. Layout and features can differ by device.
• User agent — A technical ID string from your browser. Useful for deep debugging.
• Language — Your browser’s language preference. Helps explain content or formatting differences.
• Timezone — Your system time zone. Time-based features depend on this.
• Screen resolution — Your full screen size in pixels. Helps with layout/rendering issues.
• Browser window — The current window size. If something breaks only at certain widths, this pinpoints it.
• Cookies — Whether first-party cookies work. Needed for things like logins and baskets.
• 3rd-party cookies — Whether third-party cookies are allowed. Many browsers block these by default; we only use this to understand behaviour of embedded services.

Network

• IP address — Your public internet address (IPv4 or IPv6). Useful for security checks and regional issues.
• IP version — Whether you’re on IPv4 or IPv6. Some networks behave differently across versions.
• Country / City — An approximate location from your network provider (not precise GPS). Helps us spot geo-specific issues.
• ASN — The network you’re connected through (e.g. your ISP or corporate network). Useful for identifying provider-level blocks.
• TLS — The security protocol version used by your browser. Very old versions can cause connection problems.
• Cloudflare colo — The Cloudflare data centre your traffic is hitting (e.g. LHR = London). Helps us see where traffic is being served from.
• Client RTT — Estimated round-trip time in milliseconds. Higher numbers can explain timeouts or slow responses.

When we might ask you to use this

• You can’t log in, or sessions keep dropping.
• A page looks different or broken on your device.
• You’re seeing errors that we can’t reproduce.
• Checkout, payments, or embedded services (maps, videos, chat) aren’t working as expected.

What to do next

1. Open this page on the device that has the issue.
2. Click Copy details.
3. Paste the results into your email reply to our support team (or into the ticket/chat).

That’s it — we’ll take it from there.