Update card for 500-row sample

README.md

@@ -20,7 +20,7 @@ configs:
   data_files: ai_visibility_sample.csv
 ---
 
-# AI Visibility Sample: 994 US business websites
+# AI Visibility Sample: 500 US business websites
 
 A free sample of the Engagemii AI visibility dataset. Each row is a real US business
 website with a score from 0 to 10 for how findable and citable that site is to AI answer
@@ -28,7 +28,8 @@ engines such as ChatGPT, Claude, Gemini, and Perplexity, plus a record of which
 crawlers have actually visited it.
 
 The full dataset covers 34.7M+ websites worldwide, 15.1M of them verified US businesses.
-This sample is 994 rows drawn from the US set.
+This sample is 500 rows drawn from the US set, spread across 20 business categories and
+48 states.
 
 ## Why this exists
 
@@ -44,7 +45,6 @@ problem with real data instead of anecdotes.
 | `companyName` | Business name |
 | `domain` | Registered domain |
 | `websiteUrl` | Resolved site URL |
-| `scoredAt` | Date this row was scored |
 | `aeoScore` | AI visibility score, 0 to 10 |
 | `aiBotHitsTotal` | Observed AI crawler requests to this site |
 | `aiBotsSeen` | Which AI crawlers were observed, by name |
@@ -58,11 +58,12 @@ problem with real data instead of anecdotes.
 
 ## What is in this sample
 
-In these 994 rows:
+In these 500 rows:
 
-- Scores run from 0.2 to 8.1. The median is 4.4. No site in the sample reaches 9.
-- 702 of 994 sites had at least one identified AI crawler visit recorded.
+- Scores run from 0.6 to 8.1. The median is 4.7. No site in the sample reaches 9.
+- 304 of 500 sites had at least one identified AI crawler visit recorded.
 - ClaudeBot is the most frequently observed crawler in this sample, followed by GPTBot.
+- Every domain is unique. Records are spread across 20 business categories and 48 states.
 
 The score is a 0 to 10 measure built from on-page and off-page signals. The component
 weights are not published.
@@ -91,10 +92,10 @@ separately, by checking the answers themselves.
 
 ```bibtex
 @misc{engagemii_ai_visibility_sample,
-  title  = {AI Visibility Sample: 994 US business websites},
+  title  = {AI Visibility Sample: 500 US business websites},
   author = {Pellitteri, Gregory},
   year   = {2026},
-  url    = {https://huggingface.co/datasets/engagemii/ai-visibility-sample}
+  url    = {https://huggingface.co/datasets/Engagemii/ai-visibility-sample}
 }
 ```