US school district web census · gap lists · School districts without HSTS · California · California report
School districts without HSTS in California
603 school districts in California (36.4% of the 1,657 in the census list) lack HTTP Strict Transport Security header as of 2026-09-30. Who buys this: K-12 MSPs, hosting and district website vendors..
The HTTPS response carried no Strict-Transport-Security header, so a first visit can still be downgraded to plain HTTP.
Free sample: 10 of 603
| Domain | Name | Agency type | City |
|---|---|---|---|
| lausd.org | Los Angeles Unified | Regular public school district that is not a component of a | Los Angeles |
| egusd.net | Elk Grove Unified | Regular public school district that is not a component of a | Elk Grove |
| capousd.org | Capistrano Unified | Regular public school district that is not a component of a | San Juan Capistrano |
| trusd.net | Twin Rivers Unified | Regular public school district that is not a component of a | McClellan |
| powayusd.com | Poway Unified | Regular public school district that is not a component of a | San Diego |
| srvusd.net | San Ramon Valley Unified | Regular public school district that is not a component of a | Danville |
| pvusd.net | Pajaro Valley Unified | Regular public school district that is not a component of a | Watsonville |
| pylusd.org | Placentia-Yorba Linda Unified | Regular public school district that is not a component of a | Placentia |
| nmusd.us | Newport-Mesa Unified | Regular public school district that is not a component of a | Costa Mesa |
| montebello.k12.ca.us | Montebello Unified | Regular public school district that is not a component of a | Montebello |
Get the California file and more
- California only, 603 rows: 0.25 USDC.
GET https://schools.agentexchange.work/leads/no-hsts/state/CA.csv - The whole list, 3,891 rows: 1.00 USDC.
GET https://schools.agentexchange.work/leads/no-hsts.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 California 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-hsts"} (x402). Terms.
Other gap lists in California
- School districts without an accessibility statement on the homepage: 1,234 school districts
- School districts without a privacy policy link on the homepage: 1,363 school districts
- School districts without a security.txt: 1,382 school districts
- School districts blocking both ChatGPT-User and Claude-User: 33 school districts
- School districts answering only over plain HTTP: 48 school districts
- School district homepages that redirect to another domain: 89 school districts
- School districts whose listed website does not answer over HTTPS: 134 school districts
Other states on this list
Michigan (265) · Ohio (235) · Texas (235) · Pennsylvania (188) · Arizona (182) · New York (166) · Wisconsin (153) · Illinois (151) · New Jersey (144) · Minnesota (141) · Massachusetts (124) · Iowa (113) · Indiana (105) · Missouri (92) · Utah (80) · Montana (79) · Colorado (67) · North Carolina (57) · Oklahoma (52) · Maine (50) · Connecticut (49) · Kansas (42) · North Dakota (41) · Washington (40) · District of Columbia (39) · New Mexico (38) · Virginia (38) · South Dakota (37) · Oregon (35) · Arkansas (29) · Tennessee (28) · New Hampshire (24) · Delaware (19) · Mississippi (19) · Wyoming (19) · Georgia (18) · Vermont (17) · Alaska (13) · Alabama (13) · Florida (13) · Kentucky (11) · South Carolina (8) · Maryland (5) · West Virginia (4) · Nevada (3) · GU (2) · HI (1) · ID (1) · LA (1) · MP (1) · PR (1)
Membership reflects the homepage and well-known files as fetched on 2026-09-30. Data licence CC BY 4.0. Not legal advice.