Open data

Dataset changelog

Harpd publishes one immutable snapshot per closed calendar month. This page reports what changed between consecutive snapshots. Every row is computed by diffing two snapshot files — nothing on this page is written by hand.

1snapshot transitions computed
99products added
54products removed
1products re-ranked

Immutable. A published snapshot is never rewritten. If Harpd has to correct a figure, the correction ships as a new snapshot plus an entry here — the old file keeps saying what it said.

Computed, not authored. The changelog has no editor. An entry omits additions and removals when no previous snapshot exists, because a missing baseline is not evidence that nothing changed.

Rank Points are promotional placement. A change in rank or Rank Points reflects Credits spent on the board, not an editorial quality judgement. See the methodology.

Snapshots

Each snapshot is a frozen file. Fetch it directly, or read the index at/data/rank/snapshots.json.

Changes by snapshot

September 2026

2026-09 vs 2026-08

100 products (was 55) · 20 categories

Removed (54)

Re-ranked (1)

Cite this changelog

Harpd. Harpd Dataset Changelog. https://harpd.com/data/changelog/ (CC BY 4.0).

Harpd. Harpd Dataset Changelog. https://harpd.com/data/changelog/ (CC BY 4.0).

Machine-readable: /data/changelog.json · Snapshots: /data/rank/snapshots.json · Latest: /data/rank/latest.json

License: CC BY 4.0 (CC BY 4.0) ·Methodology ·Schema