World university web census · gap lists · Universities without a security.txt · the Netherlands · the Netherlands report
Universities without a security.txt in the Netherlands
17 universities in the Netherlands (35.4% of the 48 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, MSPs serving higher education..
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 17
| Domain | Name | Country | City |
|---|---|---|---|
| aereshogeschool.nl | Aeres Hogeschool Almere | Netherlands | |
| amsterdam.tech | European Leadership University | Netherlands | |
| dehaagsehogeschool.nl | De Haagse Hogeschool | Netherlands | |
| europeanopenuniversity.com | European Open University | Netherlands | |
| hku.nl | Hogeschool voor de Kunsten Utrecht (HKU) | Netherlands | |
| hotelschool.nl | Hotelschool The Hague | Netherlands | |
| hro.nl | Hogeschool Rotterdam | Netherlands | |
| hsleiden.nl | Hogeschool Leiden | Netherlands | |
| hu.nl | Hogeschool Utrecht | Netherlands | |
| hva.nl | Hogeschool van Amsterdam | Netherlands |
Get the the Netherlands file and more
- the Netherlands only, 17 rows: 0.25 USDC.
GET https://universities.agentexchange.work/leads/no-security-txt/state/NL.csv - The whole list, 6,485 rows: 1.00 USDC.
GET https://universities.agentexchange.work/leads/no-security-txt.csv - All 8 gap lists of this census: 5.00 USDC.
GET https://universities.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, known_domains, 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 the Netherlands changes
Free: the Atom feed of universities 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://universities.agentexchange.work/watch with {"callback":"https://…","list":"no-security-txt"} (x402). Terms.
Other gap lists in the Netherlands
- Universities without an accessibility statement on the homepage: 35 universities
- Universities without a privacy policy link on the homepage: 9 universities
- Universities with an expired security.txt: 3 universities
- Universities without HSTS: 8 universities
- Universities answering only over plain HTTP: 3 universities
- University homepages that redirect to another domain: 4 universities
Other countries on this list
the United States (1,859) · Japan (457) · India (295) · Indonesia (162) · France (152) · Germany (150) · TR (150) · South Korea (145) · RU (134) · Brazil (123) · the United Kingdom (121) · AR (104) · Canada (103) · Mexico (98) · PK (96) · IR (84) · NG (83) · Malaysia (82) · Poland (80) · Spain (79) · the Philippines (74) · Italy (71) · BD (63) · PE (56) · TH (55) · Taiwan (48) · Australia (47) · Romania (44) · Switzerland (43) · VN (43) · Ukraine (41) · Chile (36) · KE (34) · SA (33) · Portugal (31) · AF (29) · Greece (29) · IQ (29) · Belgium (28) · Slovakia (28) · Austria (27) · AZ (25) · EG (25) · AE (24) · BG (24) · GH (23) · BO (22) · DZ (22) · Ireland (22) · VE (22) · Israel (21) · Hungary (20) · JO (20) · LK (20) · South Africa (20) · China (18) · SD (18) · SV (18) · ET (17) · Finland (17) · SG (17) · LB (16) · LV (16) · EC (15) · KH (15) · KZ (15) · UZ (15) · MA (14) · TZ (14) · UG (14) · ZW (14) · BY (13) · HK (13) · LT (13) · PS (13) · Sweden (13) · BA (12) · Norway (12) · NP (12) · PY (12) · RS (12) · GE (11) · NI (11) · NZ (11) · AL (10) · BH (10) · EE (10) · GT (10) · LY (10) · PR (10) · AM (9) · SO (9) · SY (9) · HN (8) · KG (8) · OM (8) · BW (7) · IS (7) · MK (7) · MN (7) · PA (7) · MD (6) · SN (6) · TN (6) · UY (6) · YE (6) · KW (5) · MZ (5) · AO (4) · CM (4) · MM (4) · MT (4) · MW (4) · PG (4) · QA (4) · SI (4) · ZM (4) · BI (3) · FJ (3) · GM (3) · HT (3) · MO (3) · XK (3) · CO (2) · Denmark (2) · GN (2) · GY (2) · KY (2) · LI (2) · LU (2) · MG (2) · MU (2) · MV (2) · SC (2) · TJ (2) · TT (2) · VA (2) · AD (1) · AG (1) · BJ (1) · BN (1) · BT (1) · BZ (1) · CF (1) · CR (1) · CV (1) · Czechia (1) · GD (1) · GL (1) · GP (1) · JM (1) · KN (1) · LA (1) · LC (1) · LR (1) · LS (1) · ML (1) · MR (1) · NA (1) · NU (1) · RE (1) · RW (1) · SL (1) · SM (1) · SR (1) · TC (1) · TD (1) · VC (1) · VG (1) · WS (1)
Membership reflects the homepage and well-known files as fetched on 2026-09-30. Data licence CC BY 4.0. Not legal advice.