DNS, WHOIS & ASN Intelligence
Analyze any domain's DNS, WHOIS, email security — or look up ASN, IP address, and network prefix details. Instantly and free.
Try: google.com · 8.8.8.8 · AS17644 · AS13335 · 103.14.23.0/24
Recent Scans
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What we check
| Category | Description | |
|---|---|---|
| 📋 | Domain WHOIS | Registrar, creation/expiry dates, status flags and DNSSEC from RDAP/WHOIS. |
| 🌐 | DNS Records | A, AAAA, NS, MX, CNAME, SOA, TXT, CAA, SRV, DS and DNSKEY records. |
| 🔗 | Nameservers | TLD delegation, glue records, parent vs authoritative consistency. |
| 📧 | Email Security | SPF mechanisms, DMARC policy, CAA issue/issuewild/iodef. |
| 🔒 | DNSSEC | DS, DNSKEY, RRSIG detection and chain-of-trust validation. |
| 📡 | DNS Propagation | Resolution across 10 major public resolvers worldwide. |
| 🛰️ | ASN Intelligence | Organization, prefixes, peers, upstreams, downstreams, BGP, RPKI. |
| 📍 | IP Lookup | ASN, geolocation, network type, PTR, hosting/CDN/VPN detection. |
| 🗂️ | Prefix Analysis | CIDR block details, WHOIS, RPKI validation, BGP status. |
Free Online DNS, WHOIS & Network Intelligence Tools
Tools.BD is a free, all-in-one network diagnostics platform for DNS lookup, WHOIS lookup, ASN lookup, IP address lookup, and network prefix analysis. Whether you are a network engineer, domain administrator, or cybersecurity professional, our tools provide instant, detailed reports on any domain or IP address.
Domain Health Checker
Check your domain's DNS configuration, nameserver health, email security (SPF, DMARC, CAA), DNSSEC validation, and DNS propagation across 10 global resolvers. Our domain health checker identifies misconfigurations that can affect email deliverability, website availability, and security.
ASN & IP Intelligence
Look up any Autonomous System Number (ASN) to see its organization, country, announced IP prefixes, BGP peers, upstream and downstream providers, and RPKI validation status. Our IP lookup tool shows geolocation, network type, reverse DNS, open ports, and risk indicators like VPN, proxy, hosting, and CDN detection.
Network Prefix Analysis
Analyze any CIDR prefix to see its WHOIS registration, RPKI/ROA validation, BGP status, and IP address count. Perfect for network administrators managing IP allocations and BGP routing.
Who Uses Tools.BD?
- Network Engineers — Diagnose DNS issues, check BGP routing, verify RPKI deployment
- Domain Administrators — Monitor DNS health, check email security, verify DNSSEC
- Cybersecurity Teams — Investigate IP addresses, detect VPN/proxy/hosting, analyze network ownership
- Web Developers — Debug DNS propagation, check nameserver configuration, verify SSL/CAA records
- IT Support — Quick domain lookups, email delivery troubleshooting, network diagnostics
How it works
- Enter a query — type any domain, IP address, ASN, or CIDR prefix in the search box above.
- Live analysis — our Go backend queries DNS servers, RDAP/WHOIS, RIPE Stat, PeeringDB, RPKI and performs dozens of checks in real-time.
- Get results — see a detailed report with all data organized in clear sections.