How Rankeo's rankings work
"Every score has sources" is a promise, and this page is the receipt. Here is exactly how a Rankeo score is computed, updated and displayed — no black box.
1. Collection
A crawler refreshes ratings daily from public sources: MyAnimeList, AniList and Kitsu for anime and manga; Steam and Metacritic for games; IMDb for cross-checks; Crunchyroll and Netflix's public Top 10 for popularity signals; public YouTube statistics for creators; and league standings for sports. Each title's page lists every source we found, with a link, its raw score, and when we last synced it.
2. Normalization
Sources score on different scales — 100-point Metacritic, percent-positive Steam reviews, 10-point MAL, 5-star systems. We convert every raw score to a common 0–10 scale before comparing anything. The per-source normalized value is shown next to the raw score in each title's "Why this rank?" table.
3. Weighting
The aggregate is a weighted average of the normalized scores. Two things set a source's influence: its vote volume for that title (a 9.0 from two million voters outweighs a 9.5 from forty), and a source reliability weight we assign per source (e.g. full weight for MAL/AniList, reduced weight for smaller catalogs). Sources are also mean-centered so a platform that rates everything generously doesn't inflate its titles. Popularity-only signals (Netflix Top 10 position, Reddit episode karma) are shown as context but carry no weight in the score itself.
4. The community as a source
Rankeo members rate titles 1–10 and vote on individual weekly episodes. Member ratings are aggregated into a "Rankeo Community" source that competes with the crawled ones under the same vote-volume rules — a handful of votes barely moves a score backed by millions. Coordinated or automated voting violates our terms and is removed.
5. The Weekly Aura Chart
This week in anime is a different kind of ranking: instead of long-term quality, it measures each episode's release-week buzz. Aura is derived from fan discussion activity on the episode's r/anime thread (via the public Arctic Shift archive), refreshed several times a day while an episode is fresh, then finalized. Rankeo members separately rate the episode itself — that per-episode fan score is ours alone.
6. Series vs seasons
Seasons of one show are grouped into a series using explicit relation data from AniList (prequel/sequel edges) with a conservative title-based fallback. The series score is vote-weighted across all its seasons; each season also keeps its own page and score.
Corrections
Wrong match, missing source, stale score? Email [email protected] and we'll fix it. The goal is that you never have to trust us — you can check the math on any page.