Identify the infrastructure shape
Low-density results can suggest dedicated or narrowly shared hosting. Very large sets often indicate a proxy, content delivery layer, parking system, platform, or multi-tenant provider. Confirm the classification with current DNS, network ownership context, headers, certificates, and public provider documentation where appropriate.
Build a repeatable baseline
Save the address list, scan time, product version, result allowance, and raw export. Use the same conditions when comparing later snapshots. Differences can come from real hosting changes, observation timing, normalization, or commercial limits.
Segment large domain sets
Work from a copy of the export. Group by registrable domain, naming pattern, authoritative DNS, certificate context, or other relevant dimensions. Keep infrastructure-owned names separate from customer names when the distinction can be supported.
Describe density without attribution
Report the observed count, sample names, date, and evidence that the address serves shared infrastructure. Avoid statements that tenants share an owner or purpose unless separate evidence supports that conclusion.