posting volume power law

27 advertisers post 14% of every job you'll see. Here's what that means for your search.

A handful of recruiters post most of the jobs you see.
Here's why that matters.

Job boards feel infinite. The underlying structure is far more concentrated than it looks — and that structure should change how you search.

⚠️ TL;DR Across 35,318 distinct advertisers (246,000 postings total), 17,514 — 49.6%, essentially half — posted exactly once. Just 27 advertisers (0.08%) posted 500+ times each, and between them accounted for 34,012 postings, nearly 14% of everything on the board.

The shape of the market

Most of what you scroll past on any given day comes from a tiny fraction of very active posters, almost all of them agencies working many roles at once, not individual employers with one-off vacancies. The long tail — half of all advertisers — represents genuine employers hiring for a single, specific role, and gets far less visibility than the volume posters.

📰 The "front page" isn't representative

High-volume posters dominate visibility by posting constantly — not necessarily because they have the best roles for you.

🕒 "Most recent" favours volume

A reposted template resurfaces near the top repeatedly, crowding out a single posting from a better-fit employer.

💎 One-off postings, higher signal

An advertiser who's posted exactly once more likely represents a specific, real, currently-open vacancy.

🎯 A practical adjustment
Don't rely solely on job-board search. Go directly to company careers pages for employers you're genuinely interested in — you'll see the smaller, quieter pool of postings that gets drowned out by agency volume on aggregated boards. More work per application, but often higher signal.

Find the quieter, higher-signal postings

GetJobzi surfaces the full distribution — not just what shouts loudest through volume.

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