Source quality in recruiting: measuring hires per channel

What is source quality in recruiting?

Source quality measures how good each recruiting channel is at producing hires rather than applications. A job board that sends 300 applicants and no hires is a low-quality source, however busy it looks.

Source quality vs volume

Volume is easy to see and easy to celebrate. Quality only shows when you follow each candidate to the end of the process. High-volume sources routinely produce the fewest hires per application, while referrals and targeted outreach often bring few applicants and many hires.

Measuring recruiting source effectiveness

  • Source of hire: the channel each hired candidate came from.
  • Conversion by source: the share of applicants from each channel who reach interview, offer and hire.
  • Cost per hire by source: what each channel costs divided by the hires it produced.
  • Quality of hire by source: how those hires perform and stay, once you have a year of data.

Which are the best recruiting sources?

It depends on the role, the market and your reputation as an employer, which is why your own numbers beat general rankings. Recruitment Workflow Optimizer follows each channel through to hires, not just applications, so budget moves to the sources that actually fill roles.

Last reviewed 2026-11-01.

Related terms

  • Recruitment funnel — A recruitment funnel is the sequence of stages candidates pass through on the way to a hire, from application to screening, interviews and offer, with fewer people at each stage than the one before.
  • Offer-accept rate — Offer acceptance rate is the share of job offers that candidates accept.
  • Applicant tracking system (ATS) — An applicant tracking system is software that manages candidates through a company’s hiring process, from application to offer, keeping every applicant, conversation and decision in one place.

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