STEP 2
Verify & Corroborate
Review corroborated intelligence from multiple sources. Confirm event details, refine scope, and lock in the analysis before classification begins.
Turn Online Hate into Enforceable Action
AI-powered detection, classification, and enforcement of antisemitism and hate speech. Four legal standards. One structured workflow.
Built for the Netherlands. Designed to scale internationally.
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.
Check an Incident
Paste a tweet, post, article, or flyer. HateCheck confirms facts with Dutch sources, applies IHRA/Nexus/JDA standards, assigns a clear Tier (1-5), and proposes specific actions.
Find Incidents
Run a guided OSINT research process across high-trust Dutch sources - police records, CIDI reports, major outlets, municipal statements - to uncover related incidents and patterns.
Draft and Route
Auto-generates complaints, legal memos, and talking points with evidence packaged. Smart routing suggests the right authority - platforms, municipalities, police - matched to the severity tier.
Track and Follow Up
Maintains a record of every case with status tracking, reminder prompts, and escalation logic. Links repeat offenders across incidents to surface systemic patterns.
5-STEP INVESTIGATION
From Detection to Enforcement
A complete pipeline from scanning to legal action.
1
Source Intake
URLs, text, images, or live feeds submitted for analysis across 20+ platforms and formats.
2
Verify & Focus
Content is verified for authenticity and relevance before entering the analysis pipeline.
3
Protocol Analysis
Multi-model AI applies semantic, contextual, and visual analysis against established frameworks.
4
Classification
Five-tier severity assignment based on IHRA, JDA, Nexus, and Dutch legal standards.
5
Enforcement Action
Generates referral packages, reports, and documentation for authorities and organizations.
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.
Classification System
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
Not Antisemitic
Content that does not meet the threshold for antisemitism under any applicable standard.
No action required. Archive for reference.
Tier 2
Context Needed
Borderline content that may be antisemitic depending on context, intent, and audience.
Flag for human review and contextual analysis.
Tier 3
Antisemitic
Content that qualifies as antisemitic under IHRA/JDA definitions but does not cross criminal thresholds.
Document, report to platform, notify monitoring bodies.
Tier 4
Potentially Criminal
Content potentially violating Dutch Penal Code Articles 137c, 137d, or 137e.
Formal referral to law enforcement with evidence package.
Tier 5
Urgent Risk
Immediate threat indicators requiring urgent referral to law enforcement.
Emergency referral. Notify targets and authorities immediately.
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 Academy
Open knowledge for recognizing, documenting, and responding to antisemitism. Free. For everyone.
Knowledge is the first line of defense. HateCheck believes everyone - from citizens to institutions - should have access to the tools and frameworks needed to act. No login. No paywall. No gating.
🏛Professionals - municipal staff, law enforcement, educators
🎓Students & researchers
👤Any engaged citizen
LEARNING TRACKS
01
TRACK 1
Recognizing Antisemitism
Learn to identify antisemitism in its many forms - from ancient tropes to modern coded language.
5 guides|45 min total
Start Learning →02TRACK 2
OSINT - Open Source Intelligence Basics
Understand how public, verifiable information from the open web can be used responsibly to document hate.
5 guides|40 min total
Start Learning →03TRACK 3
Platform Reporting
Step-by-step guides for reporting antisemitism and hate speech on every major platform.
7 guides|35 min total
Start Learning →04TRACK 4
Institutional Response
What municipalities, universities, employers, and organizations should do when antisemitism is reported.
6 guides|50 min total
Start Learning →05TRACK 5
History & Context
Why antisemitism persists, how it evolves, and what makes it different from other forms of hatred.
6 guides|55 min total
Start Learning →WHY THIS MATTERS
The gap between the scale of online antisemitism and the public's ability to recognize and respond to it is widening. Thousands of incidents go unrecognized, undocumented, or unreported every year - not because people don't care, but because they lack the knowledge and tools to act.
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.