Professional Network Tools
Free, powerful, and easy-to-use tools to analyze, diagnose, and secure your network. No sign-up required.
IP Lookup
Find the geolocation, ISP, and network details of any IP address or domain in seconds.
Blacklist Check
Verify if an IP address has been flagged or blacklisted for malicious activity across major databases.
WHOIS Lookup
Look up domain registration details including owner, registrar, creation date, and nameservers.
Speed Test
Measure your internet connection speed including download, upload, and latency in real time.
DNS Leak Test
Check if your DNS requests are leaking outside your VPN tunnel, exposing your browsing activity.
Port Scanner
Scan open ports on any IP address or domain to identify running services and potential vulnerabilities.
Subnet Calculator
Calculate subnet masks, CIDR notations, network addresses, broadcast addresses, and host ranges.
Ping Test
Test website and server latency, ping response times, and packet loss in real time.
Traceroute
Trace the exact path your data takes across the web. Locate network hops, identify connection delays, and see where bottlenecks occur in real time.
SSL Checker
Verify your website's SSL/TLS installation. Inspect expiration dates, certificate authorities, common names, and identify potential handshake issues instantly.
HTTP Headers Checker
Inspect response headers returned by any server. Check status codes, identify web server configurations, and evaluate security headers instantly.
Browser Information
Instantly view your web browser, operating system, screen resolution, and client specifications.
User Agent Checker
Parse and deconstruct any User Agent string to identify browser, OS, and layout engine details.
ASN Lookup
Lookup any Autonomous System Number (ASN), IP, or domain to find network ownership and announced prefix blocks.
IP Security Guide
Learn how to protect your IP address and network from cyber threats, with essential security tips and firewall best practices.
DNS Lookup
Check A, AAAA, CNAME, MX, NS, and TXT records for any domain name.
Reverse DNS Lookup
Find the hostname (PTR record) an IP address resolves back to.
Domain Age Checker
Find exactly how old a domain is, straight from its real registration record.
MX Lookup
Check which mail servers handle email for a domain, and in what priority order.
NS Lookup
Find which name servers control a domain's DNS.
TXT Lookup
Read a domain's TXT records — SPF, DMARC, and site-verification codes.
How It Works
Get results in seconds with our streamlined 3-step process.
Select a Tool
Choose from our suite of professional network analysis tools based on what you need to diagnose or investigate.
Enter Your Query
Provide an IP address, domain name, or simply click to auto-detect. Our system handles the rest instantly.
Get Detailed Results
Get real-time data in a clean, easy-to-read format — so you can act on it straight away.
Why Use Our Tools?
Built for professionals and everyday users alike. Here's what you can expect.
Quick Results
Most lookups return in a few seconds. Tools that measure the network itself, like ping and traceroute, take longer because they wait for real replies.
Privacy Minded
No account needed. Queries are processed to return your result and aren't sold; see our Privacy Policy for the analytics and data providers involved.
Live Data Sources
Results come from live queries: public DNS, RDAP registries, DNS blocklists, and third-party IP geolocation services. Each tool page explains its limits.
100% Free
All tools are free to use with no sign-up and no credit card. Fair-use rate limits apply to keep the service available for everyone.
Built for Everyone, from Beginners to Experts
Whether you're a network administrator troubleshooting connectivity, a developer debugging API integrations, or a privacy-conscious individual verifying your VPN — our tools are designed to deliver the answers you need.
Network Administrators
Diagnose connectivity issues, verify DNS configurations, and monitor port availability.
Developers & DevOps
Debug API integrations, verify server locations, and test network security.
Security Researchers
Check IP reputations, identify blacklisted addresses, and analyze threat surfaces.
Everyday Users
Verify VPN connections, test internet speed, and understand your digital footprint.
Frequently Asked Questions
Are these tools really free?
Yes, all our network tools are completely free to use with no sign-up required. We believe everyone should have access to professional network diagnostics.
How accurate is the IP geolocation?
Geolocation comes from the DB-IP database, updated monthly. Country is usually correct; city is often right but can point to your ISP's nearest hub instead of your actual location.
Do you store my search queries?
We don't keep a history of your lookups or sell query data. To return a result, the IP or domain you enter is sent to the relevant data provider (for example a geolocation service or public DNS), and our servers may keep short-lived technical logs for security and rate limiting. Our Privacy Policy has the details.
Can I use these tools for my business?
Yes, for normal interactive use, within our Terms of Service and fair-use limits. A developer API for high-volume access isn't available yet; it's in development.
What is a DNS leak test?
A DNS leak test checks whether your DNS requests are routed through your VPN tunnel or if they're leaking to your ISP, potentially exposing your browsing activity.
How does the port scanner work?
Our port scanner sends connection requests to common ports on the target IP and reports which ones are open, helping you identify running services and potential vulnerabilities.
Need More Privacy?
Protect your identity and encrypt your connection with a trusted VPN service.
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