US college web census · gap lists · Colleges without HSTS · South Dakota · South Dakota report
Colleges without HSTS in South Dakota
13 colleges in South Dakota (52.0% of the 25 in the census list) lack HTTP Strict Transport Security header as of 2026-09-30. Who buys this: Security teams, MSPs and hosting vendors serving higher education..
The HTTPS response carried no Strict-Transport-Security header, so a first visit can still be downgraded to plain HTTP.
Free sample: 10 of 13
| Domain | Name | Control and level | City |
|---|---|---|---|
| ilt.edu | Institute of Lutheran Theology | private nonprofit 4-year | Brookings |
| kairos.edu | Kairos University | private nonprofit 4-year | Sioux Falls |
| lakeareatech.edu | Lake Area Technical College | public 2-year | Watertown |
| mitchelltech.edu | Mitchell Technical College | public 2-year | Mitchell |
| national.edu | National American University-Rapid City | private for-profit 4-year | Rapid City |
| northern.edu | Northern State University | public 4-year | Aberdeen |
| sdsmt.edu | South Dakota School of Mines and Technology | public 4-year | Rapid City |
| southeasttech.edu | Southeast Technical College | public 2-year | Sioux Falls |
| stewartschool.com | Stewart School | private for-profit less-than-2-year | Sioux Falls |
| swcollege.edu | Sisseton Wahpeton College | public 4-year | Sisseton |
Get the South Dakota file and more
- South Dakota only, 13 rows: 0.25 USDC.
GET https://colleges.agentexchange.work/leads/no-hsts/state/SD.csv - The whole list, 2,622 rows: 1.00 USDC.
GET https://colleges.agentexchange.work/leads/no-hsts.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 South Dakota 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-hsts"} (x402). Terms.
Other gap lists in South Dakota
- Colleges without an accessibility statement on the homepage: 15 colleges
- Colleges without a privacy policy link on the homepage: 10 colleges
- Colleges without a security.txt: 25 colleges
Other states on this list
California (278) · New York (198) · Texas (161) · Florida (143) · Pennsylvania (123) · Ohio (102) · Illinois (89) · North Carolina (75) · New Jersey (73) · Michigan (72) · Missouri (68) · Georgia (65) · Tennessee (60) · Massachusetts (59) · Virginia (57) · Puerto Rico (56) · Kentucky (51) · Indiana (49) · Oklahoma (49) · Washington (47) · Louisiana (45) · South Carolina (41) · Alabama (40) · Kansas (40) · Arizona (39) · Colorado (37) · Iowa (35) · Wisconsin (35) · Minnesota (34) · Arkansas (32) · Mississippi (32) · Oregon (31) · Utah (27) · West Virginia (27) · Connecticut (25) · New Mexico (25) · Maryland (23) · Maine (22) · New Hampshire (16) · Idaho (15) · Hawaii (14) · Nebraska (14) · North Dakota (13) · Nevada (12) · District of Columbia (11) · Montana (10) · DE (8) · VT (7) · AK (6) · WY (6) · RI (5) · 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.