Learn
How IPs, networks and fingerprints work
- What is my IP address?Your public IP address is the address websites see when you connect. Learn how it differs from your local IP, why it changes and what it reveals.
- What is an ASN (autonomous system number)?An ASN identifies the network that announces an IP address on the internet. Learn how ASNs work and why they matter for proxies, security and troubleshooting.
- What is an ISP?An internet service provider connects you to the internet and assigns your public IP. Here is what websites can infer from your ISP and connection type.
- What is a browser fingerprint?A browser fingerprint combines dozens of settings and rendering quirks into an identifier that can persist even when your IP changes. Learn how it works.
- What is canvas fingerprinting?Canvas fingerprinting draws hidden text and shapes and hashes the pixels. Small differences in fonts, GPUs and drivers make the result distinctive.
- What is WebGL fingerprinting?WebGL exposes your GPU vendor, renderer and graphics capabilities. Learn what WebGL fingerprinting collects and how browsers limit it.
- Can websites detect proxies and VPNs?How websites detect proxies, VPNs, Tor and datacenter traffic, why detection is probabilistic, and what signals are involved.
- Why does my browser time zone differ from my IP location?A time zone mismatch between your browser and IP location is common with VPNs, travel and mobile networks. Here is what it means and why sites check it.
- What information can websites see about me?Without any login or permission, websites can see your IP, approximate location, network, browser, device characteristics and more. See the full list.
- How can an AI agent check its outbound IP?Autonomous agents, scripts and workers can check their public IP, country, ASN and network type with a single HTTP call. Examples for curl, Python and tool calling.