The words people use about this work

Short, honest definitions. Where a term is used loosely, or means different things to different vendors, it says so.

• Waterfall enrichment

  Asking several data sources for the same field in order, and stopping at the first good answer.

• Data enrichment

  Adding fields you do not have to records you do, by matching them against a data source.

• Email verification

  Checking that an address exists and can receive mail, before you send anything to it.

• Catch-all domain

  A domain whose mail server accepts anything addressed to it, so no single address can be confirmed.

• Match rate

  The share of your records a source could find an answer for.

• Bounce rate

  The share of messages a mail server rejected rather than delivered.

• Firmographics

  The attributes that describe a company rather than a person: size, industry, location, revenue.

• Ideal customer profile

  A description of the companies worth selling to, specific enough to build a list from.