Method
- Start from the Pinlyx Data API catalogue of public X accounts: 21,310,358 addressable accounts on 19 September 2026 (a planner estimate), of which 158,475 carry a tweet-level engagement aggregate and 97,774 a reliable one, meaning at least 8 original posts inside the engine’s 30-day window.
- Per account the engine reports a reach ratio (median views on an original post divided by followers), an engagement rate (median interactions on an original post divided by followers) and an engagement rate per view. We quote those definitions as the API states them and checked them against the per-account medians in the payloads. All rates are percentages.
- For the ladder we drew accounts from the catalogue and read their engagement blocks in batches of ten. Every account with at least 100,000 followers was listed in full (157,265 accounts) and 2,100 of them drawn at random; between 10,000 and 100,000 followers we took one page of 500 accounts ascending from each of 14 follower cut points spaced evenly on a log scale (7,000 accounts) and drew 6,200 of them; between 1,000 and 10,000 we probed 300 accounts the same way.
- Only accounts with a reliable sample enter a percentile: 1,005 accounts and 91,094 original posts across the three measured bands, plus 195 Turkish accounts drawn from the 4,343 Turkish accounts with 100,000 or more followers. p25, median and p75 are taken across accounts, never across posts.
- Blue-tick shares by band, language and country are full counts of the 100k+ listing and cut-point samples below it. Language and country totals are the catalogue’s exact hourly rollups. The catalogue-wide medians come straight from the engine’s coverage endpoint.
Limits
The catalogue is a discovery catalogue of public X accounts collected for monitoring. It is not a random sample of X and does not represent the platform as a whole. Tweet-level coverage is a subset of it and the engine scans large accounts more often, so below 100,000 followers the sample is thin and tilted toward the accounts the engine happened to scan: 358 of the 6,200 accounts drawn in the 10k-100k band were measurable and 0 of 300 under 10,000 followers, which is why no figure is printed there. The 10k-100k band is a cut-point sample, not a random draw, and its measured accounts skew large; the split at 30,000 followers shows how much reach moves inside it. Views are X’s impression counter, which counts non-followers reached through the For You feed and repeat views, so a reach ratio above 100% is possible and the ratio overstates the share of followers who saw a post; follower counts padded by inactive accounts pull it down. Every rate is a 30-day median computed between 24 August and 19 September 2026; another month gives other numbers. The catalogue-wide median reach comes in two engine cuts, 8.21% across every measured account and 6.25% across the 93,614 accounts in the benchmark population, and we quote both. The automation flag and the legacy verified flag are not populated, so no automated-account share is reported. The API’s research feed carried no promoted findings on the snapshot day, so none are quoted. Language and country are inferred by classifiers; 70.0% of accounts carry a language and 34.7% a country.