📖 About this tool: This visualization shows the evolution of SPF (Sender Policy Framework) records for a given domain over time. Each snapshot represents the SPF resource tree for an interval. Nodes are domains (e.g., include targets), edges show the mechanism used, and IP boxes list resolved IP addresses. Changes between consecutive snapshots are highlighted in red. Use zoom, pan, and drag to explore large trees; click an IP box to view all IP resources.
🔹 Switch to Live Query for real‑time SPF tree computation (may take a few seconds).