US school district web census · gap lists · School districts without HSTS · Texas · Texas report
School districts without HSTS in Texas
235 school districts in Texas (19.2% of the 1,225 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 235
| Domain | Name | Agency type | City |
|---|---|---|---|
| nisd.net | NORTHSIDE ISD | Regular public school district that is not a component of a | SAN ANTONIO |
| austinisd.org | AUSTIN ISD | Regular public school district that is not a component of a | AUSTIN |
| aldineisd.org | ALDINE ISD | Regular public school district that is not a component of a | HOUSTON |
| neisd.net | NORTH EAST ISD | Regular public school district that is not a component of a | SAN ANTONIO |
| aisd.net | ARLINGTON ISD | Regular public school district that is not a component of a | ARLINGTON |
| garlandisd.net | GARLAND ISD | Regular public school district that is not a component of a | GARLAND |
| kipptexas.org | KIPP TEXAS PUBLIC SCHOOLS | Independent charter district | HOUSTON |
| leanderisd.org | LEANDER ISD | Regular public school district that is not a component of a | LEANDER |
| ecisd.us | EDINBURG CISD | Regular public school district that is not a component of a | EDINBURG |
| upliftparent.org | UPLIFT EDUCATION | Independent charter district | DALLAS |
Get the Texas file and more
- Texas only, 235 rows: 0.25 USDC.
GET https://schools.agentexchange.work/leads/no-hsts/state/TX.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 Texas 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 Texas
- School districts without an accessibility statement on the homepage: 816 school districts
- School districts without a privacy policy link on the homepage: 1,092 school districts
- School districts without a security.txt: 845 school districts
- School districts blocking both ChatGPT-User and Claude-User: 13 school districts
- School districts answering only over plain HTTP: 13 school districts
- School district homepages that redirect to another domain: 17 school districts
- School districts whose listed website does not answer over HTTPS: 51 school districts
Other states on this list
California (603) · Michigan (265) · Ohio (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.