Ask most recruiting teams which job board works best and they will name the one that sends the most applicants. Ask which one sends the most hires and the room gets quiet. Those are different questions with different answers, and the gap between them is where a surprising amount of budget goes to waste. Source effectiveness reporting closes that gap. This post walks through what to measure, how to read it, and what to do about it.
Applicants are not the metric
Illustrative numbers for one 90-day window at a regional employer running the same 12 jobs across four sources:
- Board A: 1,240 applicants, 31 screened, 6 hired. Monthly cost $1,800.
- Board B: 410 applicants, 58 screened, 14 hired. Monthly cost $1,200.
- Company careers page: 190 applicants, 44 screened, 11 hired. Cost effectively zero.
- Employee referrals: 35 applicants, 22 screened, 9 hired. Referral bonus $500 each.
Board A wins on volume by a mile. It also produced the fewest hires and the worst screen rate (2.5 percent of applicants got a screen, versus 14 percent for Board B and 63 percent for referrals). Cost per hire works out to roughly $900 for Board A, $260 for Board B, and $500 for referrals. Volume was not just unhelpful, it was expensive: every one of those 1,200 applicants had to be parsed, ranked and looked at by someone.
Read the whole funnel by source
The useful report is a stage funnel with one row per source. Applied, screened, interviewed, offered, hired, and if you can get it from your HRIS, still employed at 90 days. Each transition tells you something different:
- Applied to screened: quality of the applicants the source sends. A low rate means the board is matching your posting to the wrong people, or your posting is unclear on that board.
- Screened to interviewed: how well those applicants hold up in a conversation. A drop here often points to inflated resumes from a particular source.
- Offered to hired: whether the source sends people who actually want the job. Low acceptance from one board can mean its audience is browsing, not looking.
- Hired to 90 days: the number that matters most and gets tracked least. A source that sends people who leave in six weeks is not a good source, no matter how cheap.
Cost per hire, honestly calculated
Divide what you paid a source by the hires it produced in the same window. Include sponsorship spend, subscription fees and referral bonuses. Then add one thing most teams skip: recruiter time. If Board A's 1,240 applicants took a recruiter 25 hours to work through and Board B's 410 took 9 hours, the real gap is even wider than the invoice suggests. You do not need a perfect number. You need a consistent one you can compare quarter over quarter.
What to do with the numbers
- 01Shift budget, gradually. Move a third of Board A's spend to Board B and watch for 60 days. Sources behave differently by role and region, so do not cut anything to zero on one quarter of data.
- 02Fix the posting before blaming the board. If one source has a terrible screen rate, look at how your posting renders there. Sometimes the requirements list got flattened into a paragraph.
- 03Invest in what is already working for free. If the careers page converts well, make it easier to find and faster to apply on.
- 04Put a number on referrals. If they hire at 25 percent and stay longer, a $500 bonus is cheap. Say so to your employees, with the math.
- 05Segment by job family. A board that is useless for drivers might be excellent for dispatchers. One aggregate number hides that.
Watch for the gaps in the data
Two caveats keep this honest. First, candidates see your job in more than one place. Someone who found it on Board A and applied through your careers page a week later will be attributed to the careers page. That is fine as long as you know it happens and do not read the careers page number as pure organic magic. Second, small numbers lie. Six hires versus fourteen is a real difference. Two hires versus three is noise. Look at at least a quarter of data before moving money, and a year before drawing conclusions about a source you spend heavily on.
Source effectiveness is not a complicated report. It is a funnel, a cost column and the discipline to look at it every month. Teams that do this usually find they can cut job board spend by a meaningful amount while hiring the same number of people, or keep the spend and hire more. Either way, the applicants-per-board number stops being the one anyone brags about.