US college web census · gap lists · Colleges without a security.txt · California · California report
Colleges without a security.txt in California
518 colleges in California (95.6% of the 542 in the census list) lack security.txt (RFC 9116) as of 2026-09-30. Who buys this: Security teams, vulnerability-disclosure and attack-surface vendors, MSPs serving higher education..
No security.txt was found at /.well-known/security.txt or /security.txt on the final host, so a researcher who finds a vulnerability has no published contact.
Free sample: 10 of 518
| Domain | Name | Control and level | City |
|---|---|---|---|
| 4cd.edu | Contra Costa Community College District Office | public 2-year | Martinez |
| aabeautycollege.com | Asian-American International Beauty College | private for-profit less-than-2-year | Westminster |
| aada.edu | American Academy of Dramatic Arts-Los Angeles | private nonprofit 2-year | Los Angeles |
| abcadultschool.edu | ABC Adult School | public less-than-2-year | Cerritos |
| abcotechnology.edu | ABCO Technology | private for-profit 2-year | Los Angeles |
| abt.edu | Advance Beauty Techs Academy | private for-profit less-than-2-year | San Jacinto |
| academyart.edu | Academy of Art University | private for-profit 4-year | San Francisco |
| academyla.com | Academy for Salon Professionals | private for-profit less-than-2-year | Northridge |
| acbscollege.org | Agape College of Business and Science | private nonprofit 4-year | Fresno |
| acchs.edu | Academy of Chinese Culture and Health Sciences | private nonprofit 4-year | Oakland |
Get the California file and more
- California only, 518 rows: 0.25 USDC.
GET https://colleges.agentexchange.work/leads/no-security-txt/state/CA.csv - The whole list, 4,617 rows: 1.00 USDC.
GET https://colleges.agentexchange.work/leads/no-security-txt.csv - All 8 gap lists of this census: 5.00 USDC.
GET https://colleges.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, ipeds_sector, 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 California changes
Free: the Atom feed of colleges 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://colleges.agentexchange.work/watch with {"callback":"https://…","list":"no-security-txt"} (x402). Terms.
Other gap lists in California
- Colleges without an accessibility statement on the homepage: 318 colleges
- Colleges without a privacy policy link on the homepage: 278 colleges
- Colleges without HSTS: 278 colleges
- Colleges blocking both ChatGPT-User and Claude-User: 2 colleges
- Colleges answering only over plain HTTP: 10 colleges
- College homepages that redirect to another domain: 18 colleges
Other states on this list
New York (340) · Texas (259) · Pennsylvania (248) · Florida (226) · Ohio (195) · Illinois (179) · North Carolina (133) · Massachusetts (127) · Michigan (125) · Missouri (114) · Tennessee (112) · Georgia (111) · Virginia (107) · New Jersey (106) · Minnesota (81) · Washington (79) · Indiana (78) · Oklahoma (77) · Puerto Rico (77) · Louisiana (76) · Arizona (72) · Kentucky (71) · Wisconsin (69) · Colorado (68) · Arkansas (66) · South Carolina (66) · Kansas (65) · Iowa (62) · Maryland (61) · Alabama (60) · Oregon (56) · Mississippi (47) · Utah (46) · West Virginia (46) · Connecticut (42) · Nebraska (35) · New Mexico (33) · Maine (31) · New Hampshire (28) · Idaho (25) · South Dakota (25) · North Dakota (23) · Montana (22) · District of Columbia (21) · Nevada (21) · Hawaii (20) · RI (15) · VT (15) · DE (13) · AK (9) · WY (9) · GU (2) · AS (1) · FM (1) · MH (1) · MP (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.