Free IP Address Lookup — Check Reputation, Geolocation & Threats
ReconShield's free IP checker lets you instantly look up any IP address or domain. Get real-time data on ISP, country, city, abuse confidence score, VPN/proxy detection, Tor exit node status, and presence on 50+ global threat blocklists.
Features of our IP Scanner
- Real-time ASN and ISP lookups
- Geolocation mapping and timezone analysis
- Global threat reputation scoring against 50+ blocklists
- Proxy, VPN, and Tor exit node detection
- Reverse DNS footprinting
ReconShield is intended for authorized security research and educational purposes only. Unauthorized scanning is illegal.View Policy
About IP Intelligence Reconnaissance
IP intelligence is the critical first step in any modern security investigation. By gathering actionable data about an IP address, security researchers can understand a target's origin, hosting provider reputation, and associated cyber risks. Our free, advanced IP scanner combines exact geolocation intelligence, Autonomous System Number (ASN lookup) intelligence, and cross-referenced IP reputation checker databases to provide a 360-degree view of any network endpoint on the internet.
Whether you are analyzing suspicious traffic in your server logs, verifying the authenticity of an email sender, or mapping out a bug bounty target, ReconShield's passive footprinting ensures you get maximum visibility without alerting the target infrastructure. Use our tool as a reliable IP scanner and IP intelligence tool.
Understanding IP Intelligence Data
What is an ASN Lookup?
An Autonomous System Number (ASN) identifies the network provider routing the IP address. Knowing the ASN helps you determine if an IP belongs to a residential ISP (like Comcast), a cloud provider (like AWS or DigitalOcean), or a known bulletproof hosting provider used by cybercriminals.
What is an IP Reputation Checker?
IP reputation relies on historical behavior. We cross-reference the target against 50+ global threat blocklists (such as Spamhaus and AbuseIPDB). If an IP has recently engaged in phishing, spamming, or brute-force attacks, our scanner flags it with a high Abuse Confidence Score.
What is a Reverse DNS Lookup (PTR)?
A reverse DNS lookup translates an IP address back into its associated hostname. This is critical for verifying mail server authenticity (e.g., confirming that an IP actually belongs to Google or Microsoft) and identifying the core infrastructure of a target.
Why is VPN/Proxy Detection Important?
Attackers rarely use their real IP addresses. Our scanner performs deep VPN/proxy detection to identify if the traffic originates from a commercial VPN, an open proxy, or the Tor anonymity network. This context is vital for fraud prevention and incident response.
Example IP Scan Report
Frequently Asked Questions
Is this IP Scanner completely passive?
Yes. ReconShield operates strictly through passive reconnaissance. We query our own threat intelligence aggregators, public registries, and DNS records. No direct packets or active payloads are ever sent to the target IP address, ensuring your research remains 100% stealthy and compliant with ethical boundaries.
How accurate is the IP Geolocation data?
Our geolocation engine aggregates data from multiple top-tier providers (such as MaxMind and IP2Location) to ensure city-level accuracy for most public IP addresses. However, keep in mind that VPNs, Proxies, and Anycast routing can spoof or alter the physical location data.
What does an "Abuse Confidence Score" mean?
The Abuse Confidence Score is an aggregated metric out of 100 that indicates how likely an IP address is engaging in malicious activity. A score above 50 typically indicates recent reports of spamming, brute-force attempts, or malware distribution originating from that host.
Can I check if an IP is on a blacklist?
Yes. ReconShield checks your IP against 50+ global blocklists including Spamhaus, AbuseIPDB, and others in real-time.
Can I check if an IP is a VPN or proxy?
Yes. Our scanner detects VPN providers, proxy servers, and Tor exit nodes automatically.