Network Tools to find information about an IP address or hostname.

What are Network Tools used for?

  • Look up WHOIS data for a domain to review registration details, dates, and ownership signals during research, support, and domain
  • Find your hosting company Class C IP address
  • Work through IPv6 CIDR math in the browser to verify ranges, subnet boundaries, and containment before you update routing, ACLs, or docs.
  • Inspect IPv4 subnet boundaries and smallest fitting range logic when addresses or ranges need to be aligned with CIDR network edges.
  • Find DNS Records lookup tool to quickly get website Domain Name Server information.
  • Find out the company details and address range for your MAC address.
  • Test whether one IPv6 address belongs to a target prefix and review the result for routing, ACL, allowlist, and troubleshooting workflows.
  • A reverse IP lookup answers a specific operational question: what other domains appear to be hosted on the same server or IP footprint?
  • Test and validate your DMARC record
  • Resolve a hostname to its A/AAAA IPs and troubleshoot mismatches caused by DNS cache, CDNs, and geo-based answers.
  • Validate whether a start-to-end IPv4 range is fully contained inside a target CIDR block for ACLs, planning, and network troubleshooting.
  • Work through IPv6 CIDR math in the browser to verify ranges, subnet boundaries, and containment before you update routing, ACLs, or docs.
  • Test whether one IPv4 address belongs to a target CIDR range and review the subnet details for troubleshooting, ACLs, and network planning.
  • Work out IPv4 subnet boundaries, mask values, host ranges, and related network details from an IP address and CIDR prefix in the browser.
  • Work through IPv6 CIDR math in the browser to verify ranges, subnet boundaries, and containment before you update routing, ACLs, or docs.
  • Detect session-visible browser or network details in the browser for support, debugging, and access-control checks.
  • Browser-based NSLookup workflow for quick hostname resolution checks and first-pass DNS troubleshooting.


CodersTool Categories