DHCP Pool Calculator: Free Online Tool and Practical Guide
Calculate a DHCP allocation range within an IPv4 subnet. This guide explains how to use the free tool and understand the result.
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Wi-Fi Channel Guide: Free Online Tool and Practical Guide
Reference recommended non-overlapping Wi-Fi channels and planning notes. This guide explains how to use the free tool and understand the result.
Wi-Fi Coverage Estimator: Free Online Tool and Practical Guide
Estimate access-point count from floor area, users and environment. This guide explains how to use the free tool and understand the result.
MAC Address Generator: Free Online Tool and Practical Guide
Generate locally administered unicast MAC addresses for labs and testing. This guide explains how to use the free tool and understand the result.
Bandwidth Calculator: Free Online Tool and Practical Guide
Convert Mbps/Gbps to MB/s and estimate usable throughput. This guide explains how to use the free tool and understand the result.
Download Time Calculator: Free Online Tool and Practical Guide
Estimate transfer time from file size and connection speed. This guide explains how to use the free tool and understand the result.
Reverse DNS Checker: Free Online Tool and Practical Guide
Find PTR/reverse-DNS hostname for a public IP. This guide explains how to use the free tool and understand the result.
Server Reachability / Ping Tool: Free Online Tool and Practical Guide
Measure safe TCP reachability latency to HTTPS/HTTP on a public host. This guide explains how to use the free tool and understand the result.
MAC Address Vendor Lookup: Free Online Tool and Practical Guide
Identify the manufacturer/OUI for a MAC address using the free MACVendors lookup service. This guide explains how to use the free tool and understand the result.
SPF Checker: Free Online Tool and Practical Guide
Find SPF records and flag common configuration problems. This guide explains how to use the free tool and understand the result.
