US credit union web census · gap lists · Credit unions without a security.txt · South Dakota · South Dakota report
Credit unions without a security.txt in South Dakota
27 credit unions in South Dakota (87.1% of the 31 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, fintech and MSP vendors selling to credit unions..
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 27
| Domain | Name | Charter type | City |
|---|---|---|---|
| blackhillsfcu.org | BLACK HILLS | federal credit union | Rapid City |
| dakotalandfcu.com | DAKOTALAND | federal credit union | Huron |
| levo.org | LEVO | federal credit union | Sioux Falls |
| voyagefcu.org | VOYAGE | federal credit union | Sioux Falls |
| highmarkfcu.com | HIGHMARK | federal credit union | RAPID CITY |
| servicefirstfcu.org | SERVICE FIRST | federal credit union | Sioux Falls |
| bluestonefcu.org | BLUESTONE | federal credit union | Sioux Falls |
| northernhillsfcu.org | NORTHERN HILLS | federal credit union | STURGIS |
| areafcu.org | AREA | federal credit union | ABERDEEN |
| sentinelfcu.org | SENTINEL | federal credit union | BOX ELDER |
Get the South Dakota file and more
- South Dakota only, 27 rows: 0.25 USDC.
GET https://credit-unions.agentexchange.work/leads/no-security-txt/state/SD.csv - The whole list, 3,312 rows: 1.00 USDC.
GET https://credit-unions.agentexchange.work/leads/no-security-txt.csv - All 8 gap lists of this census: 5.00 USDC.
GET https://credit-unions.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, total_assets_usd, 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 credit unions 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://credit-unions.agentexchange.work/watch with {"callback":"https://…","list":"no-security-txt"} (x402). Terms.
Other gap lists in South Dakota
- Credit unions without an accessibility statement on the homepage: 27 credit unions
- Credit unions without a privacy policy link on the homepage: 14 credit unions
- Credit unions without HSTS: 16 credit unions
- Credit unions blocking both ChatGPT-User and Claude-User: 1 credit unions
- Credit union homepages that redirect to another domain: 1 credit unions
Other states on this list
Texas (304) · Pennsylvania (210) · California (202) · New York (202) · Ohio (152) · Illinois (133) · Michigan (113) · Tennessee (104) · Indiana (95) · Massachusetts (88) · Wisconsin (86) · Florida (85) · Louisiana (84) · New Jersey (77) · Minnesota (71) · Virginia (71) · Alabama (67) · Washington (65) · Missouri (61) · West Virginia (54) · Connecticut (52) · Iowa (52) · Colorado (51) · Georgia (51) · North Carolina (50) · Kansas (46) · Oklahoma (45) · Maryland (41) · Mississippi (41) · Oregon (40) · Arkansas (39) · Nebraska (39) · South Carolina (39) · Kentucky (38) · Utah (38) · Hawaii (35) · Maine (34) · Montana (30) · New Mexico (28) · Arizona (27) · Idaho (22) · District of Columbia (19) · North Dakota (18) · DE (14) · NV (13) · WY (12) · NH (10) · RI (10) · VT (10) · AK (8) · PR (4) · VI (4) · GU (1)
Membership reflects the homepage and well-known files as fetched on 2026-09-30. Data licence CC BY 4.0. Not legal advice.