US school district web census · gap lists · School districts without a security.txt · Colorado · Colorado report
School districts without a security.txt in Colorado
133 school districts in Colorado (64.9% of the 205 in the census list) lack security.txt (RFC 9116) as of 2026-09-30. Who buys this: Security teams, K-12 cybersecurity vendors and MSPs, district website vendors..
No security.txt at either location on the final host. Most district sites run on a few website vendors and a vendor-supplied file counts as published, so this list is largely districts whose website platform publishes none.
Free sample: 10 of 133
| Domain | Name | Agency type | City |
|---|---|---|---|
| csi.state.co.us | State Charter School Institute | Independent charter district | DENVER |
| pueblod60.org | Pueblo School District No. 60 in the county of Pueblo and | Regular public school district that is not a component of a | PUEBLO |
| tsd.org | Thompson School District R-2J | Regular public school district that is not a component of a | LOVELAND |
| garfieldre2.net | Garfield School District No. Re-2 | Regular public school district that is not a component of a | RIFLE |
| edreenvisioned.org | EDUCATION REENVISIONED BOCES | Specialized public school district | MONUMENT |
| steamboatschools.net | Steamboat Springs School District No. Re 2 | Regular public school district that is not a component of a | STEAMBOAT SPRINGS |
| weld8.org | Weld re-8 schools | Regular public school district that is not a component of a | FORT LUPTON |
| alamosaschools.org | Alamosa School District No. Re-11J | Regular public school district that is not a component of a | ALAMOSA |
| bsd29j.com | Bennett School District No. 29J | Regular public school district that is not a component of a | BENNETT |
| lamarschools.org | Lamar School District No. Re-2 | Regular public school district that is not a component of a | LAMAR |
Get the Colorado file and more
- Colorado only, 133 rows: 0.25 USDC.
GET https://schools.agentexchange.work/leads/no-security-txt/state/CO.csv - The whole list, 10,650 rows: 1.00 USDC.
GET https://schools.agentexchange.work/leads/no-security-txt.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":"no-security-txt"} (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 HSTS: 67 school districts
- School districts blocking both ChatGPT-User and Claude-User: 10 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
California (1,382) · Texas (845) · New York (702) · Ohio (674) · Pennsylvania (562) · Michigan (492) · New Jersey (487) · Minnesota (437) · Arizona (434) · Illinois (420) · Missouri (307) · Massachusetts (297) · Oklahoma (291) · Indiana (250) · Wisconsin (241) · Iowa (212) · North Carolina (170) · Kansas (167) · Connecticut (159) · Washington (155) · Oregon (145) · Montana (136) · New Mexico (121) · Utah (119) · Alabama (117) · Arkansas (115) · Mississippi (108) · Virginia (100) · Maine (98) · Kentucky (92) · Tennessee (91) · North Dakota (77) · South Dakota (69) · District of Columbia (68) · New Hampshire (52) · Florida (46) · Georgia (45) · South Carolina (44) · Vermont (40) · Wyoming (37) · Delaware (34) · Alaska (33) · Maryland (15) · Nevada (14) · West Virginia (5) · GU (4) · ID (2) · AS (1) · HI (1) · LA (1) · MP (1) · PR (1) · VI (1)
Membership reflects the homepage and well-known files as fetched on 2026-09-30. Data licence CC BY 4.0. Not legal advice.