More than 80 percent of antisemitic social-media posts reported by Jewish community members across Europe remained online, according to a World Jewish Congress study that found reporting content to platforms had little effect on whether it was removed.
Researchers examined 754 posts reported between February 2025 and April 2026 and found that 613, or 81.2 percent, were still accessible when researchers checked them in May. Among the most serious findings is that calls to harm Jewish community members continued to remain online despite robust reporting, with 151 of 232 inciteful posts still accessible in May 2026.
Reporting made virtually no measurable difference, with 19.5 percent of content formally flagged to platforms removed, against 18.2 percent of content never flagged at all. TikTok was the exception, removing 64 percent of flagged content.
The study was conducted by the WJC's Technology and Human Rights Institute, which works with Jewish communities to identify and report online antisemitism.
