Network Details
Understanding the technical aspects of your internet connection
Your Current Data
About Network Information: These details reveal how your device connects to the internet and through which networks your data travels. This information is useful for troubleshooting, understanding your connection, and for network administrators.
Network Information Explained
Hostname
The hostname (also called reverse DNS or PTR record) is a human-readable name associated with your IP address.
hostname.example.com A reverse DNS record exists for your IP address. This typically reveals your ISP, connection type, or hosting provider.
Not available No reverse DNS record exists for your IP. This is common for VPNs, mobile connections, or when your ISP hasn't configured one. It's not a problem.
What it reveals:
- Often contains your ISP's name
- May indicate the type of connection (residential, business, mobile)
- Sometimes includes geographic information
- Can reveal if you're using a VPN or hosting service
ASN (Autonomous System Number)
An ASN is a unique identifier assigned to a network or group of networks under a single administrative control. Example: AS15169 (Google), AS7922 (Comcast).
What is an Autonomous System? The internet is made up of thousands of interconnected networks, each managed independently. Each of these networks is an "Autonomous System" and has a unique number (ASN) for identification and routing purposes.
What it reveals:
- Which organization controls the network your IP belongs to
- Whether you're on a residential ISP, corporate network, cloud provider, or VPN
- General information about network size and type
"Unknown" may appear if the lookup API is temporarily unavailable or blocked by your browser/firewall. This is rare since every public IP address has an assigned ASN.
↑ Back to Your DataASN Organization
The name of the organization that owns and operates the Autonomous System your IP address belongs to. This is typically your ISP or the provider of your internet service.
Examples:
| Organization | Type |
|---|---|
| Comcast Cable Communications | Residential ISP |
| Amazon.com, Inc. | Cloud Provider (AWS) |
| Google LLC | Tech Company / Cloud |
| NordVPN S.A. | VPN Provider |
| University of Cambridge | Educational Institution |
Privacy note: If you're using a VPN, this will show your VPN provider instead of your actual ISP.
↑ Back to Your DataConnection Type
An estimate of your network connection speed and type, based on browser APIs when available.
Possible values:
- Slow 2G: Very slow mobile connection (~50 Kbps)
- 2G: Basic mobile data (~150 Kbps)
- 3G: Standard mobile data (~1.5 Mbps)
- 4G/LTE or faster: High-speed mobile or broadband connection
- Not available: Browser doesn't support connection detection
How it's detected: Modern browsers provide a Network Information API that estimates connection quality. This is based on observed network behavior, not actual speed tests.
Browser support: Firefox and Safari don't support this API. Brave may block it for privacy reasons. "Not available" is normal in these browsers and doesn't indicate a problem.
↑ Back to Your DataWhy Network Details Matter
- Troubleshooting: Understanding your network path helps diagnose connectivity issues
- Privacy awareness: Know what information about your connection is visible to websites
- VPN verification: Confirm your VPN is working by checking if the ASN matches your VPN provider
- Network administration: Useful for IT professionals managing network infrastructure
- Content delivery: CDNs use ASN information to route content efficiently
Understanding Internet Routing
When you access a website, your data travels through multiple networks (Autonomous Systems) to reach its destination. Each network has its own ASN and makes independent routing decisions. This is how the internet achieves its resilience - there are multiple paths between any two points.
Fun fact: There are over 100,000 registered ASNs worldwide, though not all are actively routing traffic. The largest ASNs belong to major telecoms and tech companies, managing millions of IP addresses each.