US school district web census · gap lists · census 2026-09-30 · JSON (top 50) · feed
School districts without HSTS
3,891 of the 15,896 school districts in the census list (24.5%; 26.6% of the 14,653 reachable over HTTPS), as fetched on 2026-09-30.
On this list
3,891
of 15,896 school districts
Share of the list
24.5%
26.6% of reachable sites
States
52
largest: California (603)
Full list
1.00 USDC
x402, per file; first 50 rows free
What this gap means
The HTTPS response carried no Strict-Transport-Security header, so a first visit can still be downgraded to plain HTTP.
Control: HTTP Strict Transport Security header. Rule: no_hsts over the census record (reachable sites only). Who buys this: K-12 MSPs, hosting and district website vendors.
This list maps to no legal obligation in this census; it is a gap in published practice.
By state
52 states with at least one school district on this list; "of the state" is the share of its school districts in the census list. One state as CSV: 0.25 USDC (x402).
| State | On this list | Of the state | CSV (x402) |
|---|---|---|---|
| California (report) | 603 | 36.4% | https://schools.agentexchange.work/leads/no-hsts/state/CA.csv · card $9 |
| Michigan (report) | 265 | 34.5% | https://schools.agentexchange.work/leads/no-hsts/state/MI.csv · card $9 |
| Ohio (report) | 235 | 24.7% | https://schools.agentexchange.work/leads/no-hsts/state/OH.csv · card $9 |
| Texas (report) | 235 | 19.2% | https://schools.agentexchange.work/leads/no-hsts/state/TX.csv · card $9 |
| Pennsylvania (report) | 188 | 26.0% | https://schools.agentexchange.work/leads/no-hsts/state/PA.csv · card $9 |
| Arizona (report) | 182 | 32.0% | https://schools.agentexchange.work/leads/no-hsts/state/AZ.csv · card $9 |
| New York (report) | 166 | 17.6% | https://schools.agentexchange.work/leads/no-hsts/state/NY.csv · card $9 |
| Wisconsin (report) | 153 | 32.8% | https://schools.agentexchange.work/leads/no-hsts/state/WI.csv · card $9 |
| Illinois (report) | 151 | 17.9% | https://schools.agentexchange.work/leads/no-hsts/state/IL.csv · card $9 |
| New Jersey (report) | 144 | 21.4% | https://schools.agentexchange.work/leads/no-hsts/state/NJ.csv · card $9 |
| Minnesota (report) | 141 | 24.8% | https://schools.agentexchange.work/leads/no-hsts/state/MN.csv · card $9 |
| Massachusetts (report) | 124 | 32.8% | https://schools.agentexchange.work/leads/no-hsts/state/MA.csv · card $9 |
| Iowa (report) | 113 | 33.8% | https://schools.agentexchange.work/leads/no-hsts/state/IA.csv · card $9 |
| Indiana (report) | 105 | 28.0% | https://schools.agentexchange.work/leads/no-hsts/state/IN.csv · card $9 |
| Missouri (report) | 92 | 16.8% | https://schools.agentexchange.work/leads/no-hsts/state/MO.csv · card $9 |
| Utah (report) | 80 | 55.6% | https://schools.agentexchange.work/leads/no-hsts/state/UT.csv · card $9 |
| Montana (report) | 79 | 30.4% | https://schools.agentexchange.work/leads/no-hsts/state/MT.csv · card $9 |
| Colorado (report) | 67 | 32.7% | https://schools.agentexchange.work/leads/no-hsts/state/CO.csv · card $9 |
| North Carolina (report) | 57 | 22.6% | https://schools.agentexchange.work/leads/no-hsts/state/NC.csv · card $9 |
| Oklahoma (report) | 52 | 9.6% | https://schools.agentexchange.work/leads/no-hsts/state/OK.csv · card $9 |
| Maine (report) | 50 | 28.2% | https://schools.agentexchange.work/leads/no-hsts/state/ME.csv · card $9 |
| Connecticut (report) | 49 | 25.7% | https://schools.agentexchange.work/leads/no-hsts/state/CT.csv · card $9 |
| Kansas (report) | 42 | 13.4% | https://schools.agentexchange.work/leads/no-hsts/state/KS.csv · card $9 |
| North Dakota (report) | 41 | 21.5% | https://schools.agentexchange.work/leads/no-hsts/state/ND.csv · card $9 |
| Washington (report) | 40 | 17.5% | https://schools.agentexchange.work/leads/no-hsts/state/WA.csv · card $9 |
| District of Columbia (report) | 39 | 55.7% | https://schools.agentexchange.work/leads/no-hsts/state/DC.csv · card $9 |
| New Mexico (report) | 38 | 20.7% | https://schools.agentexchange.work/leads/no-hsts/state/NM.csv · card $9 |
| Virginia (report) | 38 | 23.6% | https://schools.agentexchange.work/leads/no-hsts/state/VA.csv · card $9 |
| South Dakota (report) | 37 | 20.9% | https://schools.agentexchange.work/leads/no-hsts/state/SD.csv · card $9 |
| Oregon (report) | 35 | 16.8% | https://schools.agentexchange.work/leads/no-hsts/state/OR.csv · card $9 |
| Arkansas (report) | 29 | 9.6% | https://schools.agentexchange.work/leads/no-hsts/state/AR.csv · card $9 |
| Tennessee (report) | 28 | 20.4% | https://schools.agentexchange.work/leads/no-hsts/state/TN.csv · card $9 |
| New Hampshire (report) | 24 | 35.8% | https://schools.agentexchange.work/leads/no-hsts/state/NH.csv · card $9 |
| Delaware (report) | 19 | 46.3% | https://schools.agentexchange.work/leads/no-hsts/state/DE.csv · card $9 |
| Mississippi (report) | 19 | 12.8% | https://schools.agentexchange.work/leads/no-hsts/state/MS.csv · card $9 |
| Wyoming (report) | 19 | 31.1% | https://schools.agentexchange.work/leads/no-hsts/state/WY.csv · card $9 |
| Georgia (report) | 18 | 22.5% | https://schools.agentexchange.work/leads/no-hsts/state/GA.csv · card $9 |
| Vermont (report) | 17 | 23.9% | https://schools.agentexchange.work/leads/no-hsts/state/VT.csv · card $9 |
| Alaska (report) | 13 | 24.1% | https://schools.agentexchange.work/leads/no-hsts/state/AK.csv · card $9 |
| Alabama (report) | 13 | 8.5% | https://schools.agentexchange.work/leads/no-hsts/state/AL.csv · card $9 |
| Florida (report) | 13 | 15.3% | https://schools.agentexchange.work/leads/no-hsts/state/FL.csv · card $9 |
| Kentucky (report) | 11 | 6.3% | https://schools.agentexchange.work/leads/no-hsts/state/KY.csv · card $9 |
| South Carolina (report) | 8 | 9.8% | https://schools.agentexchange.work/leads/no-hsts/state/SC.csv · card $9 |
| Maryland (report) | 5 | 20.0% | https://schools.agentexchange.work/leads/no-hsts/state/MD.csv · card $9 |
| West Virginia (report) | 4 | 8.2% | https://schools.agentexchange.work/leads/no-hsts/state/WV.csv · card $9 |
| Nevada (report) | 3 | 15.0% | https://schools.agentexchange.work/leads/no-hsts/state/NV.csv · card $9 |
| GU | 2 | — | https://schools.agentexchange.work/leads/no-hsts/state/GU.csv · card $9 |
| HI | 1 | — | https://schools.agentexchange.work/leads/no-hsts/state/HI.csv · card $9 |
| ID | 1 | — | https://schools.agentexchange.work/leads/no-hsts/state/ID.csv · card $9 |
| LA | 1 | — | https://schools.agentexchange.work/leads/no-hsts/state/LA.csv · card $9 |
| MP | 1 | — | https://schools.agentexchange.work/leads/no-hsts/state/MP.csv · card $9 |
| PR | 1 | — | https://schools.agentexchange.work/leads/no-hsts/state/PR.csv · card $9 |
Free: the first 50 of 3,891 (by operational schools (CCD))
| Domain | Agency type | State | Operational schools (CCD) | Census record |
|---|---|---|---|---|
| de.pr.gov PUERTO RICO DEPARTMENT OF EDUCATION | Regular public school district that is not a component of a | PR | 862 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| lausd.org Los Angeles Unified | Regular public school district that is not a component of a | CA | 784 schools | HTTP 403 · HSTS no · security.txt none · privacy no · accessibility no |
| hawaiipublicschools.org Hawaii Department of Education | Regular public school district that is not a component of a | HI | 296 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| scsk12.org Memphis-Shelby County Schools | Regular public school district that is not a component of a | TN | 223 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| montgomeryschoolsmd.org Montgomery County Public Schools | Regular public school district that is not a component of a | MD | 211 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility no · GPTBot partly blocked |
| pgcps.org Prince George's County Public Schools | Regular public school district that is not a component of a | MD | 199 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility no · GPTBot allowed |
| aps.edu ALBUQUERQUE | Regular public school district that is not a component of a | NM | 174 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot allowed |
| polk-fl.net POLK | Regular public school district that is not a component of a | FL | 165 schools | HTTP 404 · HSTS no · security.txt none · privacy no · accessibility no |
| nisd.net NORTHSIDE ISD | Regular public school district that is not a component of a | TX | 128 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility no · GPTBot partly blocked |
| austinisd.org AUSTIN ISD | Regular public school district that is not a component of a | TX | 123 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| leeschools.net LEE | Regular public school district that is not a component of a | FL | 119 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| dcps.dc.gov District of Columbia Public Schools | Regular public school district that is not a component of a | DC | 117 schools | HTTP 200 · HSTS no · security.txt complete · privacy yes · accessibility yes · GPTBot partly blocked |
| pasco.k12.fl.us PASCO | Regular public school district that is not a component of a | FL | 107 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no |
| tusd1.org Tucson Unified District (4403) | Regular public school district that is not a component of a | AZ | 90 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot blocked |
| graniteschools.org Granite District | Regular public school district that is not a component of a | UT | 85 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility no · GPTBot partly blocked |
| hcde.org Hamilton County | Regular public school district that is not a component of a | TN | 82 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| charterschools.nv.gov State Sponsored Charter Schools | Independent charter district | NV | 81 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| aldineisd.org ALDINE ISD | Regular public school district that is not a component of a | TX | 80 schools | HTTP 202 · HSTS no · security.txt none · privacy no · accessibility no |
| hcpss.org Howard County Public Schools | Regular public school district that is not a component of a | MD | 78 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot allowed |
| neisd.net NORTH EAST ISD | Regular public school district that is not a component of a | TX | 75 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes |
| aisd.net ARLINGTON ISD | Regular public school district that is not a component of a | TX | 74 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot partly blocked |
| mychesterfieldschools.com Chesterfield County Public Schools | Regular public school district that is not a component of a | VA | 73 schools | HTTP 200 via www.oneccps.org · HSTS no · security.txt none · privacy no · accessibility no · GPTBot allowed |
| jordandistrict.org Jordan District | Regular public school district that is not a component of a | UT | 70 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| garlandisd.net GARLAND ISD | Regular public school district that is not a component of a | TX | 69 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| egusd.net Elk Grove Unified | Regular public school district that is not a component of a | CA | 67 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes |
| nps.k12.nj.us Newark Public School District | Regular public school district that is not a component of a | NJ | 64 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot allowed |
| capousd.org Capistrano Unified | Regular public school district that is not a component of a | CA | 59 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility no |
| dmschools.org Des Moines Independent Comm School District | Regular public school district that is not a component of a | IA | 59 schools | HTTP 403 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot blocked |
| springfieldpublicschoolsmo.org SPRINGFIELD R-XII | Regular public school district that is not a component of a | MO | 56 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot allowed |
| stlucieschools.org ST. LUCIE | Regular public school district that is not a component of a | FL | 56 schools | HTTP 200 via www.stlucie.k12.fl.us · HSTS no · security.txt none · privacy no · accessibility no · GPTBot allowed |
| hcps.org Harford County Public Schools | Regular public school district that is not a component of a | MD | 55 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| stjohns.k12.fl.us ST. JOHNS | Regular public school district that is not a component of a | FL | 55 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot partly blocked |
| kipptexas.org KIPP TEXAS PUBLIC SCHOOLS | Independent charter district | TX | 54 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot allowed |
| education.ky.gov Kentucky Tech System | State operated agency | KY | 53 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot allowed |
| canyonsdistrict.org Canyons District | Regular public school district that is not a component of a | UT | 50 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot partly blocked |
| leanderisd.org LEANDER ISD | Regular public school district that is not a component of a | TX | 50 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot partly blocked |
| grps.org Grand Rapids Public Schools | Regular public school district that is not a component of a | MI | 48 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot partly blocked |
| csi.state.co.us State Charter School Institute | Independent charter district | CO | 46 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot partly blocked |
| ecisd.us EDINBURG CISD | Regular public school district that is not a component of a | TX | 46 schools | HTTP 403 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| upliftparent.org UPLIFT EDUCATION | Independent charter district | TX | 45 schools | HTTP 200 via uplifteducation.org · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot allowed |
| sccharter.org SC Public Charter School District | Independent charter district | SC | 44 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| trusd.net Twin Rivers Unified | Regular public school district that is not a component of a | CA | 44 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility no |
| sbo.nn.k12.va.us Newport News City Public Schools | Regular public school district that is not a component of a | VA | 43 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot partly blocked |
| gdoe.net Guam Department of Education | Regular public school district that is not a component of a | GU | 41 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility yes · GPTBot blocked |
| responsiveed.com TEXAS COLLEGE PREPARATORY ACADEMIES | Independent charter district | TX | 40 schools | HTTP 200 · HSTS no · security.txt none · privacy yes · accessibility yes · GPTBot allowed |
| evergreenps.org Evergreen School District (Clark) | Regular public school district that is not a component of a | WA | 39 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no |
| powayusd.com Poway Unified | Regular public school district that is not a component of a | CA | 39 schools | HTTP 403 · HSTS no · security.txt none · privacy no · accessibility no |
| comalisd.org COMAL ISD | Regular public school district that is not a component of a | TX | 37 schools | HTTP 403 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| dearbornschools.org Dearborn City School District | Regular public school district that is not a component of a | MI | 37 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no · GPTBot partly blocked |
| srvusd.net San Ramon Valley Unified | Regular public school district that is not a component of a | CA | 37 schools | HTTP 200 · HSTS no · security.txt none · privacy no · accessibility no |
The same rows as JSON: no-hsts.top.json (CORS open, cached one day).
Get the full list: 3,891 rows, 1.00 USDC
x402 on Base, paid per file, no account or key. GET https://schools.agentexchange.work/leads/no-hsts.csv or GET https://schools.agentexchange.work/leads/no-hsts.json answers 402 Payment Required with the terms (scheme exact, USDC on Base, maxAmountRequired 1000000, payTo 0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c); an x402 client signs the EIP-3009 authorization and resends the same request with X-PAYMENT; the file comes back with a PAYMENT-RESPONSE header. HEAD gets the same 402. One state: GET https://schools.agentexchange.work/leads/no-hsts/state/<code>.csv, 0.25 USDC (codes in the table above).
curl -sS -D - https://schools.agentexchange.work/leads/no-hsts.csv # 402 with the x402 terms; pay and resend with X-PAYMENT
Columns (19): 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. CSV: header row, every cell quoted, yes/no for booleans. JSON: { list, title, count, by_state, columns, rows[][] }. Sizes: CSV 903 KB, JSON 924 KB. The same facts are in the free CC BY 4.0 dumps: the price buys the filtered, state-sliceable file built from the 2026-09-30 census, not exclusive data. Settlement is final; no refunds. Prices in /.well-known/x402 equal the challenges. Terms · pricing.
Card checkout
Pay with a card through Stripe and get the file on the next page: Full list CSV, $29 · JSON, $29 · one state $9 (links in the table below) · all 8 lists, $79. Agents pay less with x402 (see above).
Monitor this list (free)
Atom feed: school districts that entered or left this list according to the live re-checks (every 6 hours a rotating slice, each domain at most once per 14 days; each entry says which way it moved and which field changed). no-hsts.top.json: the first 50 rows and the counts by state as JSON, CORS open. Fields watched: hsts.
Membership reflects the homepage and well-known files as fetched on 2026-09-30: a control that exists but was not found where the census looked counts as missing, and sites answering 403 to our one polite request count as reachable. Every domain links to its record with what to fix, a JSON twin, a badge and a changes feed. Data licence CC BY 4.0. Not legal advice.