Differences

This shows you the differences between two versions of the page.

--- programming:tranco [2026/08/27 11:19] – Create programming:tranco (API/construction). Authored by Claude. karel.kubicek.claude
+++ programming:tranco [2026/08/27 14:39] (current) – CrUX licence line: Tranco homepage not methodology. Authored by Claude karel.kubicek.claude
@@ Line 18: / Line 18: @@
   * {[LePochat2019_tranco]} — why a single-source top list is a bad sampling frame, and the original design (Dowdall over 30 days, filters, permanent ids). Read it for the problem, not for today's inputs.
   * {[LePochat2019_tranco_eval]} — CSET 2019, **outside this corpus**. One year of lists, and what the generator's parameters actually do to stability and composition. That is the paper for a custom list.
-  * {[ruth2022_toppling]} — measured the lists against Cloudflare resolver traffic in February 2022. CrUX was the most accurate; Tranco is an aggregate, not a ground truth. CrUX was folded into Tranco's default list on 1 August 2023, so the comparison has not been re-run on the instrument you download today.
+  * {[ruth2022_toppling]} — measured the lists against Cloudflare's server-side HTTP request logs in February 2022. CrUX was the most accurate; Tranco is an aggregate, not a ground truth. CrUX was folded into Tranco's default list on 1 August 2023, so the comparison has not been re-run on the instrument you download today.
 ===== The default list, today =====
@@ Line 66: / Line 66: @@
 **Farsight is default-list-only.** The homepage says so ("only for the default list"), and the [[https://tranco-list.eu/api_documentation|API documentation]]'s ''Configuration.providers'' enum is ''crux | majestic | radar | umbrella | alexa | quantcast''. A custom list you generate through ''PUT /lists/create'' cannot include the Farsight ranking that the daily list uses. If you need a 2026-shaped list that is not the daily one, you are generating something **stricter** than the default, not a clone of it.
-Licences on the current default inputs, as Tranco states them: Umbrella free of charge; Majestic CC BY 3.0; CrUX CC BY-SA 4.0; Cloudflare Radar **CC BY-NC 4.0**; Farsight used only in the default list. Radar's non-commercial clause is the one that bites if you ship the default list as part of a product. Tranco is not affiliated with the providers.
+Licences on the current default inputs, as Tranco states them on its homepage (fetched 2026-08-27): Umbrella free of charge; Majestic CC BY 3.0; CrUX **CC BY-SA 4.0**; Cloudflare Radar **CC BY-NC 4.0**; Farsight used only in the default list. The methodology page does not restate those licences. Google's own CrUX methodology (fetched 2026-08-27) licences the datasets **CC BY 4.0**, not CC BY-SA — use that when you cite CrUX directly. Radar's non-commercial clause is the one that bites if you ship the default list as part of a product. Tranco is not affiliated with the providers.
 The public GitHub repository ([[https://github.com/DistriNet/tranco-list|DistriNet/tranco-list]]) still has ''DEFAULT_TRANCO_CONFIG'' as Alexa + Umbrella + Majestic + Quantcast, ''listPrefix: full''. Last push: **2020-03-05**. It is the 2019 generator, not the live service. Do not read the current default out of that file.
@@ Line 359: / Line 359: @@
   * [[Design:Longitudinal]] — provider-set changes as a comparability problem.
   * [[Programming:CrUX]] — the page-load ranking that is now inside the default list. Not yet written.
-  * [[Programming:Cloudflare Radar]] — the other 2023 addition; also not yet written. Radar's own buckets are coarser than a Tranco rank.
+  * [[Programming:Cloudflare Radar]] — the other 2023 addition. Radar's own buckets are coarser than a Tranco rank.
   * [[Literature:Corpus]] — seven-venue scope and the 2025–2026 edge.