Network Tools
Check endpoints, look up DNS records, work with IP ranges, and inspect your browser/device environment. Each tool has its own page with benefits, use cases, a field guide, and the tool UI.
Why Use These Tools?
DNS diagnostics: Look up DNS records to troubleshoot domain issues.
Network planning: Calculate IP ranges and subnet masks with CIDR.
Device inspection: View browser, OS, and screen details for debugging.
Availability checks: Ping endpoints to verify uptime and response.
Common Use Cases
Domain Troubleshooting
Check DNS records when a domain isn't resolving correctly.
Network Configuration
Calculate subnets and IP ranges for infrastructure planning.
Responsive Testing
Check viewport and screen details across devices.
User Agent Debugging
Verify browser detection and feature support.
How to Use These Tools
- Pick your tool: Select the network tool that matches your task.
- Enter details: Provide the domain, IP, or let the tool detect your environment.
- Review results: Get instant information to diagnose or plan.
Tip: Use DNS Lookup to verify MX records when troubleshooting email delivery.
Tools
HTTP Ping
Check endpoint availability and response basics.
DNS Lookup
Query A/AAAA/CNAME/TXT/MX/NS records.
IP ⇄ Binary
Convert IPv4 addresses to and from binary.
CIDR Calculator
Calculate IP ranges and network details.
Browser Information
View browser/OS details and language settings.
User Agent
See and copy your current user-agent string.
Screen Resolution
Inspect screen, viewport, DPR, and color depth.