Security Tools

Advanced IP Address Lookup — Risk Score, Reverse DNS & ISP Class

Go beyond basic location data. Look up the geographic location, internet provider, risk score, and network details of any IP address instantly. Detect proxy servers, VPNs, and cloud hosting providers. Features side-by-side comparison, reverse DNS, and shareable URLs.

  • ✓Risk score and VPN/Proxy/Tor detection
  • ✓ISP classification (Residential, Business, Cloud)
  • ✓Reverse DNS hostname resolution via Google DNS
  • ✓Live ticking clock for the IP's timezone
  • ✓Side-by-side comparison mode for 2 IPs
  • ✓Batch lookup for up to 10 IP addresses
Examples:

How to Use the Advanced IP Lookup

1
Auto-Detect
On page load, your own public IP address is detected and analyzed instantly.
2
Single & Batch
Look up any IPv4/IPv6 address, or switch to Batch mode to analyze up to 10 IPs at once.
3
Compare IPs
Use the Compare tab to view two IP addresses side-by-side for quick discrepancy checks.
4
Share Results
Click 'Copy Share URL' for a direct link, or download batch results as CSV.

❓ Frequently Asked Questions

What can an IP address reveal — and what can't it reveal?+
An IP lookup tells you: • Geographic location: country (near 100% accurate), region/state (~80%), city (~60-70%), and approximate coordinates • Network: the Internet Service Provider, organisation name, Autonomous System Number (ASN) and CIDR range • Connection context: timezone, whether the IP is residential, business, mobile, datacenter or VPN • Hostname: reverse DNS (PTR record) often reveals the server or ISP infrastructure name What an IP lookup CANNOT reveal: • Your real name, home address, email or phone number • Precise street-level location — city is the finest reliable grain • Identity behind a VPN or proxy — it shows the exit node, not you • What you did online or which sites you visited Only your ISP can link an IP to a specific subscriber, and they only do so under a court order or law enforcement request.
Why is my IP showing the wrong location, and can I fix it?+
Several legitimate reasons explain a location mismatch: 1. ISP routing hub: Your ISP assigns your IP from a regional pool registered to a city that may be hundreds of kilometres from you. 2. Mobile networks: Carriers like Verizon, T-Mobile and AT&T route all mobile traffic through centralised gateways. 3. Corporate VPN or proxy: If your device connects through a company network, the IP shown is your company's egress IP. 4. Stale database: Geolocation databases are updated regularly but not in real time. If you're a business and your IP shows wrong location data, you can submit a correction request to MaxMind, IP2Location and ipinfo.io.
What is reverse DNS and why does it matter?+
Reverse DNS (rDNS) maps an IP address back to a hostname using PTR records in DNS. Why it matters: • Email deliverability: Many mail servers reject messages from IPs without a valid PTR record. • Network investigation: rDNS reveals whether an IP belongs to a search engine bot, CDN node, or ISP infrastructure. • Security research: Reverse DNS names can reveal VPN providers, hosting companies and suspicious patterns. • ISP verification: A residential Comcast IP might resolve to c-67-165-1-1.hsd1.pa.comcast.net. Our tool uses Google's DNS-over-HTTPS API (dns.google) to perform PTR lookups reliably.
What does the ISP type classification mean?+
Our tool classifies every IP into one of five ISP types: 🏠 Residential ISP — Standard home internet (Comcast, BT, Deutsche Telekom). Low risk. 🏢 Business ISP — Corporate leased line or business broadband. Slightly elevated risk. 📱 Mobile Network — Cellular carrier IP pool (Verizon Wireless, Vodafone). Low risk, lower location accuracy. ☁️ Cloud Hosting — Datacenter or cloud provider (AWS, Google Cloud, Azure, DigitalOcean). Medium-high risk. Common for bots and scrapers. 🔴 VPN Provider — Known VPN service (NordVPN, ExpressVPN). High risk. Real user location concealed. This classification tells you what kind of entity is behind the connection — which is what fraud prevention and security teams actually need.
How do I use the comparison mode and what can it tell me?+
Comparison mode displays two IP addresses side by side. Use cases: • Before/after VPN: Confirm the VPN is masking your real location and ISP correctly. • Impossible travel detection: A user logs in from two countries within minutes — comparing IPs shows if this is physically possible. • CDN verification: Check whether traffic is being served from the expected CDN PoP. • Traffic analysis: Compare ISP types of two audience segments to identify bot traffic. To use it: switch to the Compare tab, enter two IPs (or click "Use My IP" for either field), and click Compare.