[The Census](https://readinessindex.io/census) # Census Q4 2026 **1,000** organizations · **929** scanned · Index 11.0, in effect 2026-09-24 · generated 2026-09-25 Complete, with gaps 929 of 1,000 organizations returned a score. The run is finished. The other 71 refused the scanner, timed out, or failed outright, and no further attempt is coming — so every share below is out of what was actually scanned, never out of the cohort size. That a site cannot be read at all is itself a result. coverage 929 scored · 71 unreachable The cohorts ## Five populations, one scan Cohort Drawn from Median and spread Scanned Gated [state-portals The primary web portal of each US state government. Cybersecurity and Infrastructure Security Agency (CISA) 38.0 · 23.0–49.0 50/50 26 of 50](https://readinessindex.io/census/2026-Q4/state-portals) [universities The 100 largest US universities by total enrollment. National Center for Education Statistics (NCES) 42.0 · 26.0–58.0 94/100 42 of 94](https://readinessindex.io/census/2026-Q4/universities) [health-systems The 50 largest US nonprofit health systems by total revenue. Internal Revenue Service (IRS), with Wikidata 38.5 · 25.0–60.0 46/50 33 of 46](https://readinessindex.io/census/2026-Q4/health-systems) [nonprofits The 100 largest US nonprofits by total revenue. Internal Revenue Service (IRS) 39.0 · 26.0–60.0 93/100 55 of 93](https://readinessindex.io/census/2026-Q4/nonprofits) [sp500 The 500 companies in the S&P 500. Wikipedia contributors 41.0 · 25.0–59.0 463/500 271 of 463](https://readinessindex.io/census/2026-Q4/sp500) [wordpress-100 The 100 highest-ranked WordPress sites in the Tranco list. Tranco (Le Pochat et al., NDSS 2019) 47.5 · 30.0–62.0 90/100 35 of 90](https://readinessindex.io/census/2026-Q4/wordpress-100) [drupal-100 The 100 highest-ranked Drupal sites in the Tranco list. Tranco (Le Pochat et al., NDSS 2019) 45.0 · 31.0–68.0 93/100 45 of 93](https://readinessindex.io/census/2026-Q4/drupal-100) All cohorts 929 of 1,000 sites scanned 42.0 929 507 purple line = median · grey band = middle of the range What gated means **Gated** means a site failed AIR-1.1 or AIR-1.2 — it blocks AI crawlers outright, so nothing else about it can be reached. The score is capped rather than averaged away, because a site nothing can read is not partly ready. Where the failures are ## The tests almost nobody passes The share is out of the sites each test actually applied to — a test that was N/A for a site isn't counted against it, and the count is shown so a share with a small denominator can't masquerade as a sector finding. Near-universal — 95% and above 8 checks · 3 of them worth 2 points or more Test What it asks Failing Of Points [`LI-3` IndexNow fires on publish and update 99.9% 929 0](https://readinessindex.io/tests#row-LI-3) [`LI-4` Editorial policy page referenced via publishingPrinciples 99.8% 929 0](https://readinessindex.io/tests#row-LI-4) [`LI-1` HowTo on procedural content 99.7% 390 0](https://readinessindex.io/tests#row-LI-1) [`LI-2` speakable on summaries and ledes 99.5% 929 0](https://readinessindex.io/tests#row-LI-2) [`AIR-7.1` Markdown companion for every canonical page 99.3% 672 2](https://readinessindex.io/tests#row-AIR-7.1) [`AIR-1.4` Content Signals declared in robots.txt 99.2% 929 3](https://readinessindex.io/tests#row-AIR-1.4) [`AIR-7.3` Accept: text/markdown content negotiation 98.4% 929 2](https://readinessindex.io/tests#row-AIR-7.3) [`AIR-4.4` Correct X-Robots-Tag on non-HTML resources 97.9% 622 1](https://readinessindex.io/tests#row-AIR-4.4) Common — 90 to 95% 5 checks · 4 of them worth 2 points or more Test What it asks Failing Of Points [`AIR-5.1` Author entity pages with credentials 94.9% 929 2](https://readinessindex.io/tests#row-AIR-5.1) [`AIR-3.3` Vertical-specific schema types 94.4% 270 4](https://readinessindex.io/tests#row-AIR-3.3) [`AIR-1.10` /llms.txt exists and is generated from the content model 92.1% 929 2](https://readinessindex.io/tests#row-AIR-1.10) [`AIR-1.13` About, Contact, and organizational detail are complete 91.5% 929 2](https://readinessindex.io/tests#row-AIR-1.13) [`LI-5` NLWeb endpoint exposed as an MCP server with an ask method 91.0% 929 0](https://readinessindex.io/tests#row-LI-5) Coral bars mark tests worth 2.0 points or more — the failures that actually move a score. [Show all tests →](https://readinessindex.io/tests) The data ## Published in full, named Every site row carries the SHA-256 of the result behind its score, recorded when the scan finished rather than computed now — so a number on this page traces to a file, and that file to a run. [sites.csv One row per organization: name, host, score, grade, how many URLs were read, the renormalized denominator, and the result hash.](https://readinessindex.io/census/2026-Q4/data/sites.csv) [checks.csv One row per cohort and test: how many sites it applied to, and how many failed.](https://readinessindex.io/census/2026-Q4/data/checks.csv) [summary.json Everything on these pages, including the band distributions and the N/A reasons the tables above summarize.](https://readinessindex.io/census/2026-Q4/data/summary.json) Cite as Readiness Index Census Q4 2026, TEN7, scored against Index 11.0 (2026-09-24). **CC BY-SA 4.0** **2026-09-25** See [the Census methodology](https://readinessindex.io/census/methodology) and [the licence](https://readinessindex.io/license).