ASN
An Autonomous System Number identifies the organisation that owns a block of addresses. Every public address belongs to one, and the mapping is published.
Why it costs you money
It is the single field that separates the proxy types. A datacenter address resolves to a hosting company's ASN, a residential one to a consumer internet provider, and a site that wants to refuse automated traffic can filter on that in one step at almost no cost to itself. Everything you pay extra for in residential and ISP is buying a different answer to this lookup.
See it in the data
Related terms
- Datacenter proxyAn address belonging to a server in a datacenter. Far cheaper than residential, and the first thing a careful site blocks.
- ISP proxyA hosted address registered to a consumer internet provider. Residential-looking identity at datacenter speed, and it stays yours.
- Geo-targetingChoosing which country, city or carrier your requests appear to come from. Granularity varies enormously by provider.
- Every term we define