STEP 2
Verify & Corroborate
Review corroborated intelligence from multiple sources. Confirm event details, refine scope, and lock in the analysis before classification begins.
Van Online Haat naar Handhavbare Actie
AI-powered detection, classification, and enforcement of antisemitism and hate speech. Four legal standards. One structured workflow.
Gebouwd voor Nederland. Ontworpen om internationaal op te schalen.
THE CRISIS
Antisemitism in the Netherlands has reached crisis levels. The data is unambiguous.
The Netherlands is experiencing the worst surge in antisemitism since the Second World War. What was once measured in dozens of incidents per year is now measured in hundreds - and the trajectory is still climbing.
For a decade, antisemitic incidents held at an average of 138 per year. In two years, that number has risen by 305%. The national threat level has been raised to its second-highest setting. Synagogues are being firebombed. Jewish students are skipping lectures out of fear. And the vast majority of incidents are never reported at all.
CIDI VERIFIED ANTISEMITIC INCIDENTS (NETHERLANDS)
2012-22
2022
2023+145%
2024+11%
2025 Q1
Dashed line = 138/yr ten-year average (2012-2022). Source: CIDI Monitor Antisemitische Incidenten. Social media incidents tracked separately and not included in these figures.
DUTCH POLICE & PROSECUTION DATA
| 2022 | 2023 | Change | |
|---|---|---|---|
| Police-registered antisemitism cases | 549 | 880 | +60% |
| Cases involving violence | 28 | 43 | +54% |
| Cases involving threats | 54 | 80 | +48% |
| Cases advanced to prosecution (OM) | 94 | 181 | +93% |
Source: Dutch Public Prosecution Service (OM) and Netherlands Police (ECAD-P), as reported in the U.S. State Department 2024 Country Report.
THE BROADER PICTURE
+45%
Rise in public-space antisemitism (2024 vs. 2023)
CIDI 2024 Monitor
+44%
Rise in vandalism against Jewish targets
CIDI 2024 Monitor
+305%
Two-year increase above 10-year average
CIDI 2024 Monitor
96%
Jewish Europeans who encountered antisemitism in past year
EU FRA Survey, 2024
~72%
Victims who do not report antisemitic harassment
EU FRA Survey, 2024
30%
Jewish Dutch who considered emigrating (past 5 years)
EU FRA Netherlands, 2018
TIMELINE OF ESCALATION
2022
The Baseline
155 verified antisemitic incidents recorded by CIDI - roughly in line with the ten-year average of 138. Police register 549 cases. The threat level sits at 3 (Significant). A deceptive calm before what comes next.
2023
The Inflection Point
October 7 triggers a global surge. In the Netherlands, 60% of the year's incidents occur in the final three months alone. CIDI records 379 verified incidents (+145%). Police cases jump to 880 (+60%). The NCTV raises the threat level to 4 (Substantial) for the first time since 2019.
2024
The Record Year
CIDI registers 421 verified incidents - the highest in 40 years of monitoring. In March, the opening of the National Holocaust Museum is disrupted by 2,000 protesters. In November, coordinated attacks target Jewish citizens across Amsterdam after an Ajax-Maccabi match - organized via Telegram, openly called a "Jodenjacht." Dozens injured, 60+ arrests.
2025
No Sign of Slowing
Preliminary data from CIDI indicates the upward trend is continuing. Public-space antisemitism rose 45% year-on-year. Vandalism against Jewish targets up 44%. CIDI warns that 2025 will likely break the record again.
2026
Explosives at Synagogues and Schools
March 13: an explosive device detonates at a Rotterdam synagogue at 3:40 AM. Four suspects arrested near a second synagogue. March 14: a bomb hits the Cheider, the Netherlands' only Orthodox Jewish school. Part of a broader European wave including attacks in Liege, Detroit, Toronto, Norway, and Greece.
THE ACTION GAP
The numbers tell only part of the story. Behind every recorded incident are dozens more that never enter any system.
According to the EU Agency for Fundamental Rights, only about 28% of Jewish Europeans who experience antisemitic harassment report it to any authority. The primary reason? They believe nothing will happen.
Detection is slow
Signals of antisemitism are scattered across platforms, languages, and jurisdictions. Patterns that should trigger institutional response go unnoticed until they escalate.
Classification is uncertain
Without structured frameworks, every incident becomes a debate. Is it hateful speech or criminal incitement? Who decides? Against which standard?
Action stalls
Even when an incident is clearly antisemitic, the path to the right authority - platform, police, municipality, prosecution, CIDI - is unclear, bureaucratic, and slow.
Documentation is lost
Without systematic record-keeping, patterns never surface. Repeat offenders go undetected. Institutional memory evaporates between cases.
This is the gap HateCheck was built to close.
“The tools to fight antisemitism should be as structured, as fast, and as persistent as the hatred they confront.”
Sources & Attribution
- CIDI - Monitor Antisemitische Incidenten 2023, 2024. Centrum Informatie en Documentatie Israel, The Hague. cidi.nl
- EU Agency for Fundamental Rights (FRA) - "Jewish People's Experiences and Perceptions of Antisemitism," Third EU Survey (2024). fra.europa.eu
- U.S. Department of State - 2024 Country Reports on Human Rights Practices: Netherlands. state.gov
- NCTV - Dreigingsbeeld Terrorisme Nederland (DTN). National Coordinator for Counterterrorism and Security. english.nctv.nl
- Dutch Police / Openbaar Ministerie - Discrimination case statistics, 2022-2023.
- NL Times, Washington Post, JTA, Times of Israel - News reporting on Rotterdam synagogue arson (March 13, 2026) and Amsterdam Cheider school attack (March 14, 2026).
THE PLATFORM
Identify. Assess. Act.
Incident Controleren
Plak een tweet, bericht, artikel of flyer. HateCheck verifieert feiten met Nederlandse bronnen, past IHRA/Nexus/JDA-normen toe, kent een duidelijk Tier (1-5) toe en stelt specifieke acties voor.
Incidenten Vinden
Voer een begeleide OSINT-zoekactie uit over betrouwbare Nederlandse bronnen - politieregisters, CIDI-rapporten, grote media, gemeentelijke verklaringen - om gerelateerde incidenten en patronen te ontdekken.
Opstellen en Routeren
Genereert automatisch klachten, juridische memo's en gespreksnotities met bijgevoegd bewijs. Slimme routering naar de juiste autoriteit - platforms, gemeenten, politie - afgestemd op het ernstniveau.
Volgen en Opvolgen
Houdt een dossier bij van elke zaak met statusregistratie, herinneringen en escalatielogica. Koppelt herhaaldaders over incidenten heen om systemische patronen zichtbaar te maken.
5-STEP INVESTIGATION
From Detection to Enforcement
A complete pipeline from scanning to legal action.
1
Bronintake
URL's, tekst, afbeeldingen of live feeds ingediend voor analyse op meer dan 20 platforms en formaten.
2
Verifiëren & Focussen
Inhoud wordt geverifieerd op authenticiteit en relevantie voordat het de analysepijplijn ingaat.
3
Protocolanalyse
Multi-model AI past semantische, contextuele en visuele analyse toe op basis van vastgestelde kaders.
4
Classificatie
Vijfniveau-ernstbeoordeling op basis van IHRA, JDA, Nexus en Nederlandse wettelijke normen.
5
Handhavingsactie
Genereert verwijzingspakketten, rapporten en documentatie voor autoriteiten en organisaties.
A Complete Investigation in Five Steps
See how HateCheck transforms a single URL into a fully documented, legally grounded investigation.
See Screenshots
STEP 4
Forensic Classification
The system produces a full incident summary with tier assignment, confidence score, evidence mapping, and an executive summary suitable for institutional reporting.
STEP 5
Take Enforceable Action
Prioritized next steps with one-click letter drafting for every relevant authority - from platform abuse teams to Dutch law enforcement and the public prosecutor.
Classificatiesysteem
The HateCheck Index
The HateCheck Index provides a structured framework for triaging threats - from lawful speech to urgent risk. Each tier maps to specific institutional and legal response mechanisms, ensuring proportionate action. The index bridges the gap between raw detection and structured enforcement.
Tier 1
Niet Antisemitisch
Inhoud die de drempel voor antisemitisme onder geen enkele toepasselijke norm bereikt.
Geen actie vereist. Archiveren voor referentie.
Tier 2
Context Nodig
Grensgevallen die mogelijk antisemitisch zijn afhankelijk van context, intentie en publiek.
Markeren voor menselijke beoordeling en contextuele analyse.
Tier 3
Antisemitisch
Inhoud die kwalificeert als antisemitisch onder IHRA/JDA-definities maar geen strafrechterlijke drempel overschrijdt.
Documenteren, melden bij platform, monitoringinstanties informeren.
Tier 4
Mogelijk Crimineel
Inhoud die mogelijk de Nederlandse Strafwet artikelen 137c, 137d of 137e schendt.
Formele doorverwijzing naar rechtshandhaving met bewijspakket.
Tier 5
Urgent Risico
Onmiddellijke dreigingsindicatoren die urgente doorverwijzing naar rechtshandhaving vereisen.
Noodverwijzing. Doelwitten en autoriteiten onmiddellijk informeren.
METHODOLOGY
Grounded in International Standards
Antisemitism often sits at the intersection of law, politics, speech and safety. Without clear standards, real threats are missed, legitimate speech is mislabelled, and actions taken on weak analysis don't hold up. HateCheck relies on a layered set of well-known external frameworks - not to replace human judgment, but to support it with consistent, explainable structure.
IHRA Working Definition
The internationally recognized baseline for identifying antisemitism across institutional, media, and public discourse.
The Nexus Document
Distinguishes legitimate criticism of Israel from antisemitism through contextual analysis.
Jerusalem Declaration (JDA)
Academic framework providing nuanced guidelines for complex edge cases.
Dutch Penal Code
Articles 137c, 137d, and 137e - the legal basis for criminal hate speech prosecution in the Netherlands.
IHRA anchors → Nexus checks → JDA refines → Dutch law maps
ECOSYSTEM
Part of a European Network
HateCheck operates within the established European network of antisemitism monitoring bodies, legal frameworks, and civil society organisations.
Central Institutional
Technical & AI Monitoring
National Documentation
RIAS (Germany)↗
Standardized IHRA-aligned nationwide database
CST (UK)↗
Global leader in incident documentation and communal security
CIDI (Netherlands)↗
Central Dutch documentation and reporting body
CDEC (Italy)↗
Primary Italian antisemitism observatory
IKG Wien (Austria)↗
Institutional reporting point with granular annual reports
AKVAH (Denmark)↗
Systematic mapping of antisemitic incidents
Policy & Legal
CEJI (Belgium)↗
NOA project producing National Report Cards
Antisemitism Policy Trust (UK)↗
Evidence-based research for parliamentarians
CRIF (France)↗
Main representative body for French Jews
World Jewish Congress↗
Global institutional coordination
NEVER AGAIN (Poland)↗
Independent watchdog monitoring Eastern European extremism
OPEN KNOWLEDGE
HateCheck Academie
Open kennis voor het herkennen, documenteren en bestrijden van antisemitisme. Gratis. Voor iedereen.
Kennis is de eerste verdedigingslijn. HateCheck gelooft dat iedereen - van burgers tot instellingen - toegang moet hebben tot de tools en kaders die nodig zijn om te handelen. Geen login. Geen betaalmuur. Geen drempels.
🏛Professionals - gemeenteambtenaren, politie, docenten
🎓Studenten & onderzoekers
👤Elke betrokken burger
LEERTRAJECTEN
01
TRACK 1
Antisemitisme herkennen
Leer antisemitisme te identificeren in al zijn vormen - van oude stereotypen tot modern gecodeerd taalgebruik.
5 gidsen|45 min totaal
Begin met leren →02TRACK 2
OSINT - Open Source Intelligence Basis
Begrijp hoe openbare, verifieerbare informatie van het open web verantwoord kan worden gebruikt om haat te documenteren.
5 gidsen|40 min totaal
Begin met leren →03TRACK 3
Platformmeldingen
Stapsgewijze handleidingen voor het melden van antisemitisme en haatspraak op elk groot platform.
7 gidsen|35 min totaal
Begin met leren →04TRACK 4
Institutionele respons
Wat gemeenten, universiteiten, werkgevers en organisaties moeten doen wanneer antisemitisme wordt gemeld.
6 gidsen|50 min totaal
Begin met leren →05TRACK 5
Geschiedenis & Context
Waarom antisemitisme voortbestaat, hoe het evolueert en wat het onderscheidt van andere vormen van haat.
6 gidsen|55 min totaal
Begin met leren →WAAROM DIT ERTOE DOET
De kloof tussen de omvang van online antisemitisme en het vermogen van het publiek om het te herkennen en erop te reageren wordt groter. Duizenden incidenten worden elk jaar niet herkend, niet gedocumenteerd of niet gemeld - niet omdat mensen het niet belangrijk vinden, maar omdat ze de kennis en tools missen om te handelen.
Get in Touch
Request a demo, explore partnership opportunities, or report an incident.
“
Sunlight is said to be the best of disinfectants; electric light the most efficient policeman.Supreme Court Justice Louis D. Brandeis, 1913
Transparency, publicity, and public exposure are the most effective remedies for corruption and social ills. This is the founding principle behind HateCheck.
HateCheck provides general information and is not a substitute for legal advice.