STEP 2
Verify & Corroborate
Review corroborated intelligence from multiple sources. Confirm event details, refine scope, and lock in the analysis before classification begins.
Transformez la haine en ligne en action executoire
AI-powered detection, classification, and enforcement of antisemitism and hate speech. Four legal standards. One structured workflow.
Concu pour les Pays-Bas. Pense pour une expansion internationale.
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.
Verifier un incident
Collez un tweet, post, article ou tract. HateCheck confirme les faits avec des sources neerlandaises, applique les normes IHRA/Nexus/JDA, attribue un niveau clair (1-5) et propose des actions specifiques.
Trouver des incidents
Lancez un processus de recherche OSINT guide sur des sources neerlandaises fiables - archives policieres, rapports CIDI, grands medias, declarations municipales - pour decouvrir des incidents et des tendances liees.
Rediger et orienter
Genere automatiquement des plaintes, memos juridiques et points de discussion avec preuves jointes. L'orientation intelligente suggere l'autorite appropriee - plateformes, municipalites, police - adaptee au niveau de gravite.
Suivre et relancer
Tient un dossier de chaque cas avec suivi de statut, rappels et logique d'escalade. Relie les recidivistes entre les incidents pour reveler des tendances systemiques.
5-STEP INVESTIGATION
From Detection to Enforcement
A complete pipeline from scanning to legal action.
1
Collecte des sources
URLs, textes, images ou flux en direct soumis pour analyse sur plus de 20 plateformes et formats.
2
Verification et ciblage
Le contenu est verifie pour son authenticite et sa pertinence avant d'entrer dans le pipeline d'analyse.
3
Analyse protocolaire
L'IA multi-modele applique une analyse semantique, contextuelle et visuelle selon les cadres etablis.
4
Classification
Attribution de gravite en cinq niveaux basee sur l'IHRA, la JDA, Nexus et les normes juridiques neerlandaises.
5
Action d'application
Genere des dossiers de signalement, des rapports et de la documentation pour les autorites et les organisations.
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.
Systeme de classification
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
Non antisemite
Contenu qui n'atteint le seuil d'antisemitisme sous aucune norme applicable.
Aucune action requise. Archiver pour reference.
Tier 2
Contexte necessaire
Contenu limite qui peut etre antisemite selon le contexte, l'intention et le public.
Signaler pour examen humain et analyse contextuelle.
Tier 3
Antisemite
Contenu qualifie d'antisemite selon les definitions IHRA/JDA mais ne franchissant pas les seuils penaux.
Documenter, signaler a la plateforme, notifier les organismes de surveillance.
Tier 4
Potentiellement criminel
Contenu pouvant violer les articles 137c, 137d ou 137e du Code penal neerlandais.
Signalement formel aux forces de l'ordre avec dossier de preuves.
Tier 5
Risque urgent
Indicateurs de menace immediate necessitant un signalement urgent aux forces de l'ordre.
Signalement d'urgence. Notifier les cibles et les autorites immediatement.
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
Academie HateCheck
Connaissances ouvertes pour reconnaitre, documenter et repondre a l'antisemitisme. Gratuit. Pour tous.
La connaissance est la premiere ligne de defense. HateCheck estime que chacun - des citoyens aux institutions - devrait avoir acces aux outils et cadres necessaires pour agir. Pas de connexion. Pas de paywall. Pas de barriere.
🏛Professionnels - personnel municipal, forces de l'ordre, educateurs
🎓Etudiants et chercheurs
👤Tout citoyen engage
PARCOURS D'APPRENTISSAGE
01
TRACK 1
Reconnaitre l'antisemitisme
Apprenez a identifier l'antisemitisme sous ses nombreuses formes - des stereotypes anciens au langage code moderne.
5 guides|45 min au total
Commencer a apprendre →02TRACK 2
OSINT - Bases du renseignement open source
Comprenez comment les informations publiques et verifiables du web ouvert peuvent etre utilisees de maniere responsable pour documenter la haine.
5 guides|40 min au total
Commencer a apprendre →03TRACK 3
Signalement sur les plateformes
Guides etape par etape pour signaler l'antisemitisme et les discours de haine sur chaque grande plateforme.
7 guides|35 min au total
Commencer a apprendre →04TRACK 4
Reponse institutionnelle
Ce que les municipalites, universites, employeurs et organisations devraient faire lorsque l'antisemitisme est signale.
6 guides|50 min au total
Commencer a apprendre →05TRACK 5
Histoire et contexte
Pourquoi l'antisemitisme persiste, comment il evolue et ce qui le distingue des autres formes de haine.
6 guides|55 min au total
Commencer a apprendre →POURQUOI C'EST IMPORTANT
L'ecart entre l'ampleur de l'antisemitisme en ligne et la capacite du public a le reconnaitre et y repondre se creuse. Des milliers d'incidents ne sont pas reconnus, documentes ou signales chaque annee - non pas parce que les gens s'en moquent, mais parce qu'ils manquent de connaissances et d'outils pour agir.
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.