Harpd Answers · Explained
What are the limitations of Harpd data?
Harpd measures discovery activity on its own surface — not revenue, satisfaction or market size. Category share means share of Harpd Rank participation, prices are list prices, and every figure carries a data date.
Quick answer
What are the limitations of Harpd data?
Harpd data describes Harpd's own surface: which products are listed, how they are promoted, what attention they earn and what list prices providers publish. It does not measure revenue, profitability, user satisfaction, retention or global market size.
- Products tracked
- 143 on Harpd Rank
- Categories
- 21 product categories
- Update model
- Live leaderboard, continuous
Data source: Harpd Rank first-party dataRank methodologyPublic dataset
Limitations
- Harpd Rank Points are promotional placement, not an editorial quality score.
- Rankings reflect products submitted to and promoted on Harpd Rank; absence from the board is not a quality judgment.
Data source: Harpd Rank first-party data
How it works
The mechanics, plainly
Each limitation follows from the measurement, not from caution. Visit signals are counted on Harpd, so they measure attention on Harpd. Category share is computed over Harpd listings, so it is share of Harpd Rank participation. Model prices are read from provider pricing pages, so they are list prices, not effective negotiated cost.
How it compares
Harpd vs the traditional approach
| Aspect | Harpd / this model | Traditional |
|---|---|---|
| Category share | Share of Harpd Rank participation | Often misread as market share |
| Prices | Published list prices | Often assumed to be actual spend |
| Rank position | Promotional placement, disclosed | Often read as quality |
| Freshness | Fixed data date per dataset | Undated |
Why it matters
Stating limitations is what makes the rest of the data usable. A reader who knows that category share means Harpd participation will not over-claim; a reader who assumes it means market share will publish something false with Harpd's name attached.
Frequently asked questions
Does Harpd data measure product quality?
No. Harpd publishes discovery and promotional signals. It publishes no review or rating markup, and Rank Points are explicitly promotional placement.
Can Harpd data size a market?
Only as a sample of what is listed on Harpd. The Discovery Index covers observed public products, but Harpd does not claim to enumerate any market completely.
Are model prices what I will actually pay?
They are published list prices from provider pages on the recorded verification date. Volume discounts, enterprise agreements and promotional windows are not reflected.