Which job sources actually lead to offers

Job boards get the most volume and the worst conversion. Referrals get the least volume and the best. Almost everyone knows this in the abstract — and almost nobody knows how it applies to their search, because they’ve never measured it.

You don’t need a data team to find out. You need one field on every application, filled in consistently.

The sources worth tracking

Keep the list short and fixed. IterJobs uses eight:

• Cold apply — the company site or a generic application form, no contact.
• Referral — someone at the company passed you along.
• Recruiter — an internal or agency recruiter reached out or represented you.
• LinkedIn — you applied or were contacted through LinkedIn.
• Job board — Indeed, Wellfound, Otta, a niche board, and so on.
• Company website — you found the role on the company’s own careers page.
• Networking event — a meetup, conference or happy hour.
• Other — anything that doesn’t fit, used sparingly.

The exact set matters less than picking one and never drifting. “LinkedIn” and “LinkedIn job board” as separate sources will just split your own data.

Measure conversion, not counts

The number that matters isn’t how many applications came from each source. It’s what fraction moved on:

conversion = applications from a source that reached Screening or beyond
             ────────────────────────────────────────────────────────────────
             all applications from that source

If you sent 40 cold applications and two got a screen, that’s 5%. If you asked three people for a referral and one turned into an interview, that’s 33%. Those numbers should drive where you spend next week.

What the shape usually looks like

Across most searches, the ordering is stable:

1. Referrals convert best, by a wide margin. They cost you the most effort per application and return the most per hour.
2. Recruiters are next — they’ve usually screened you before you reach the hiring manager.
3. Job boards produce volume and low conversion. Not worthless, but not where your best hours should go.
4. Cold applies are the floor. Fine as a baseline; treat a response as a bonus.

The implication isn’t “stop applying to job boards”. It’s that if you have ten hours a week, the data says to spend a couple of them on referrals even though each one takes longer.

Where you lose people

Source is only half the picture. The other half is the stage where you drop out:

• Lots of applications, few Screens → the resume and targeting are the problem.
• Screens that don’t become Interviews → your pitch or the recruiter’s bar.
• Interviews that don’t reach Offers → your stories, or the rounds you keep failing.

Recording the failed step on each application turns this from a feeling into a number. “I’ve failed five take-homes” is a different problem than “I’ve never got past a recruiter screen”, and it has a different fix.

The one habit that makes it work

Fill in the source when you apply, and update the status when it moves. That’s it. Do that consistently for a month and you’ll have a Sankey diagram that tells you where your search actually works — and where you’re just busy.

Volume feels like progress. Conversion is progress. Measure the second one.