# External source check (OA-PARENT-20260831)

Checked 2026-09-04 with `scripts/verify-external-sources.py` (GET, follow redirects, 25s timeout). None of these pages audited this fixture. Machine log: [`external-source-check-OA-PARENT-20260831.json`](./external-source-check-OA-PARENT-20260831.json).

| Source | Requested URL | Final URL | HTTP | Title SHA-256 | Note | Use |
|---|---|---|---|---|---|---|
| Assessing Data Reliability | https://www.gao.gov/products/gao-20-283g | https://www.gao.gov/products/gao-20-283g | 200 | 4b63162eff92e4ec |  | Accuracy, completeness, and fitness-for-purpose context |
| Mail, Internet, or Telephone Order Merchandise Rule | https://www.ftc.gov/legal-library/browse/rules/mail-internet-or-telephone-order-merchandise-rule | https://www.ftc.gov/legal-library/browse/rules/mail-internet-or-telephone-order-merchandise-rule | 200 | 029f7e83bd53df09 |  | U.S. shipment-delay and refund regulatory context |
| API Security Top 10 | https://owasp.org/www-project-api-security/ | https://owasp.org/www-project-api-security/ | 200 | 96c77b555a993396 |  | API security risk context |
| Secure by Design | https://www.cisa.gov/secure-by-design | https://www.cisa.gov/secure-by-design | 404 | c9815cc6859cba21 | http 404 | Secure-default and write-boundary context |
| AQuA Book | https://www.gov.uk/guidance/the-aqua-book | https://www.gov.uk/guidance/the-aqua-book | 200 | f618e2989914313f |  | Analytical quality-assurance context |

Keep original requested URLs. Re-check at decision time.