US school district web census · gap lists · School districts blocking both ChatGPT-User and Claude-User · Colorado · Colorado report
School districts blocking both ChatGPT-User and Claude-User in Colorado
10 school districts in Colorado (4.9% of the 205 in the census list) lack robots.txt verdicts for ChatGPT-User and Claude-User as of 2026-09-30. Who buys this: AI-visibility vendors and digital agencies: these sites are closed to ChatGPT and Claude users..
robots.txt disallows both ChatGPT-User and Claude-User for the whole site, so neither assistant will open its pages for a user who asks.
Free sample: 10 of 10
| Domain | Name | Agency type | City |
|---|---|---|---|
| alamosaschools.org | Alamosa School District No. Re-11J | Regular public school district that is not a component of a | ALAMOSA |
| lamarschools.org | Lamar School District No. Re-2 | Regular public school district that is not a component of a | LAMAR |
| wiggins50.k12.co.us | School District No. Re-50 Wiggins | Regular public school district that is not a component of a | WIGGINS |
| kiowaschool.org | School District No. C-2 in the county of Elbert and State of | Regular public school district that is not a component of a | KIOWA |
| dt26j.com | Deer Trail School District No. 26J | Regular public school district that is not a component of a | DEER TRAIL |
| haxtunk12.org | Haxtun School District No. Re-2J | Regular public school district that is not a component of a | HAXTUN |
| kcsdr1.org | Kit Carson School District No. R-1 | Regular public school district that is not a component of a | KIT CARSON |
| limonbadgers.com | Limon School District No. Re 4J | Regular public school district that is not a component of a | LIMON |
| seboces.org | Southeastern BOCES AU | Service agency | Lamar |
| slvboces.org | San Luis Valley BOCES AU | Service agency | Alamosa |
Get the Colorado file and more
- Colorado only, 10 rows: 0.25 USDC.
GET https://schools.agentexchange.work/leads/blocks-assistants/state/CO.csv - The whole list, 284 rows: 1.00 USDC.
GET https://schools.agentexchange.work/leads/blocks-assistants.csv - All 8 gap lists of this census: 5.00 USDC.
GET https://schools.agentexchange.work/leads/all.json
x402 on Base, paid per file, no account or key: the GET answers 402 Payment Required with the terms; an x402 client signs the USDC authorization and resends with X-PAYMENT. Columns: domain, name, type, city, state, operational_schools, reachable, http_only, https_status, final_host, hsts, security_txt, privacy_link, accessibility_link, robots_gptbot, robots_chatgpt_user, robots_claude_user, llms_txt, title.
Get told when Colorado changes
Free: the Atom feed of school districts entering or leaving this list. Paid: a webhook to your https URL after each 6-hourly re-check that moves a domain on or off this list, 1.00 USDC for 30 days: POST https://schools.agentexchange.work/watch with {"callback":"https://…","list":"blocks-assistants"} (x402). Terms.
Other gap lists in Colorado
- School districts without an accessibility statement on the homepage: 149 school districts
- School districts without a privacy policy link on the homepage: 154 school districts
- School districts without a security.txt: 133 school districts
- School districts without HSTS: 67 school districts
- School district homepages that redirect to another domain: 1 school districts
- School districts whose listed website does not answer over HTTPS: 7 school districts
Other states on this list
New Jersey (52) · California (33) · New York (25) · Arizona (24) · Pennsylvania (18) · Massachusetts (13) · Texas (13) · Connecticut (7) · Delaware (7) · Minnesota (7) · Missouri (7) · North Carolina (7) · North Dakota (7) · Michigan (6) · Georgia (5) · Montana (5) · Illinois (4) · Indiana (4) · Ohio (4) · Virginia (4) · Wyoming (4) · New Mexico (3) · Alabama (2) · Iowa (2) · Florida (1) · GU (1) · Kansas (1) · Maine (1) · Mississippi (1) · Oklahoma (1) · Oregon (1) · South Dakota (1) · Tennessee (1) · Utah (1) · Wisconsin (1)
Membership reflects the homepage and well-known files as fetched on 2026-09-30. Data licence CC BY 4.0. Not legal advice.