# Sustained censorship in LB (2026-05)

**Country:** 🇱🇧 Lebanon (LB)
**Date:** 2026-05-01
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

OONI detected 120 days of elevated network interference averaging 93.9% anomaly rate.

## Metrics

- Confidence: 85%
- Measurements: 120
- Anomaly Rate: 93.9%

## Evidence

- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-31
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-31&until=2026-05-31&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-31
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-31&until=2026-05-31&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-31
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-31&until=2026-05-31&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-30
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-30&until=2026-05-30&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-30
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-30&until=2026-05-30&only=anomalies)
- **OONI** (measurement): OONI signal: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-30
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=signal&since=2026-05-30&until=2026-05-30&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 3/4 measurements anomalous (75.0%)
  - Observed: 2026-05-29
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-29&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 3/4 measurements anomalous (75.0%)
  - Observed: 2026-05-29
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-29&until=2026-05-29&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-28
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-28&until=2026-05-28&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-28
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-28&until=2026-05-28&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-27
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-27&until=2026-05-27&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-27
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-27&until=2026-05-27&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-27
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-27&until=2026-05-27&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-27
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-27&until=2026-05-27&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-27
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-27&until=2026-05-27&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-27
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-27&until=2026-05-27&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-26&until=2026-05-26&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-26&until=2026-05-26&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-26&until=2026-05-26&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-26
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-26&until=2026-05-26&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-25
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-25&until=2026-05-25&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-25
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-25&until=2026-05-25&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-25
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-25&until=2026-05-25&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-25
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-25&until=2026-05-25&only=anomalies)
- **OONI** (measurement): OONI signal: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-24
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=signal&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-24
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-24
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-24
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-24
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-24
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-24
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-24&until=2026-05-24&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-23
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-23&until=2026-05-23&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-23
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-23&until=2026-05-23&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 3/3 measurements anomalous (100.0%)
  - Observed: 2026-05-22
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-22&until=2026-05-22&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 3/3 measurements anomalous (100.0%)
  - Observed: 2026-05-22
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-22&until=2026-05-22&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-22
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-22&until=2026-05-22&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-22
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-22&until=2026-05-22&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-22
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-22&until=2026-05-22&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-22
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-22&until=2026-05-22&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-21
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-21&until=2026-05-21&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-21
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-21&until=2026-05-21&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-21
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=whatsapp&since=2026-05-21&until=2026-05-21&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-21
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-21&until=2026-05-21&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-21
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-21&until=2026-05-21&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-20
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-20&until=2026-05-20&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-20
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-20&until=2026-05-20&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-20
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-20&until=2026-05-20&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-20
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-20&until=2026-05-20&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 3/3 measurements anomalous (100.0%)
  - Observed: 2026-05-19
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-19&until=2026-05-19&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-19
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-19&until=2026-05-19&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-19
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-19&until=2026-05-19&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-19
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-19&until=2026-05-19&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-18
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-18&until=2026-05-18&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-18
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-18&until=2026-05-18&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-18
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-18&until=2026-05-18&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-18
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-18&until=2026-05-18&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-17
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-17&until=2026-05-17&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-17
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-17&until=2026-05-17&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-16&until=2026-05-16&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-16&until=2026-05-16&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-16&until=2026-05-16&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-16&until=2026-05-16&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-16&until=2026-05-16&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-16
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-16&until=2026-05-16&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-15
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-15&until=2026-05-15&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-15
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-15&until=2026-05-15&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 6/6 measurements anomalous (100.0%)
  - Observed: 2026-05-15
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-15&until=2026-05-15&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 6/6 measurements anomalous (100.0%)
  - Observed: 2026-05-15
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-15&until=2026-05-15&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-14
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-14&until=2026-05-14&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/2 measurements anomalous (50.0%)
  - Observed: 2026-05-14
  - Confidence: 70%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-14&until=2026-05-14&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-14
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-14&until=2026-05-14&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/3 measurements anomalous (66.7%)
  - Observed: 2026-05-14
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-14&until=2026-05-14&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-14
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-14&until=2026-05-14&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-14
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-14&until=2026-05-14&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-13
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-13&until=2026-05-13&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-13
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-13&until=2026-05-13&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-13
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-13&until=2026-05-13&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-13
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-13&until=2026-05-13&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-13
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-13&until=2026-05-13&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-13
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-13&until=2026-05-13&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-11
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-11&until=2026-05-11&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-11
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-11&until=2026-05-11&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-11
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-11&until=2026-05-11&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-11
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-11&until=2026-05-11&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-10
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-10&until=2026-05-10&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-10
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-10&until=2026-05-10&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-09
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-09&until=2026-05-09&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-09
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-09&until=2026-05-09&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-05-09
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-09&until=2026-05-09&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 5/5 measurements anomalous (100.0%)
  - Observed: 2026-05-09
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-09&until=2026-05-09&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-08
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-08&until=2026-05-08&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-08
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-08&until=2026-05-08&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-08
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-08&until=2026-05-08&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-08
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-08&until=2026-05-08&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-07
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-07&until=2026-05-07&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-07
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-07&until=2026-05-07&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-07
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-07&until=2026-05-07&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-07
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-07&until=2026-05-07&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-07
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-07&until=2026-05-07&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-07
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-07&until=2026-05-07&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-06
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-06&until=2026-05-06&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-06
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-06&until=2026-05-06&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-06
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-06&until=2026-05-06&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-06
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-06&until=2026-05-06&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-05
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-05&until=2026-05-05&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-05
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-05&until=2026-05-05&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-05
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-05&until=2026-05-05&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-05
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-05&until=2026-05-05&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-04
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-04&until=2026-05-04&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-04
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-04&until=2026-05-04&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 3/3 measurements anomalous (100.0%)
  - Observed: 2026-05-03
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-03&until=2026-05-03&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 2/2 measurements anomalous (100.0%)
  - Observed: 2026-05-03
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-03&until=2026-05-03&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-02
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-02&until=2026-05-02&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-02
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-02&until=2026-05-02&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-02
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-02&until=2026-05-02&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-02
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-02&until=2026-05-02&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-01
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-01&until=2026-05-01&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-01
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-01&until=2026-05-01&only=anomalies)
- **OONI** (measurement): OONI http_invalid_request_line: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-01
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_invalid_request_line&since=2026-05-01&until=2026-05-01&only=anomalies)
- **OONI** (measurement): OONI http_header_field_manipulation: 1/1 measurements anomalous (100.0%)
  - Observed: 2026-05-01
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=LB&test_name=http_header_field_manipulation&since=2026-05-01&until=2026-05-01&only=anomalies)

## What we cannot say

- **Who caused it** — measurement data alone does not attribute the interference to any government, ISP, or other actor.
- **Intent** — anomalous or unreachable measurements indicate interference, not a stated motive or a deliberate-vs-incidental determination.
- **Which networks** — no specific ASN/ISP is identified for this incident.
- **The mechanism** — we cannot state whether this was DNS tampering, TLS/SNI reset, HTTP blockpage, throttling, or an infrastructure outage.
- **A confirmed duration** — we report the observation window, not a verified start/stop of any block.
- **Sub-national scope** — measurement is aggregated at the country level; we cannot localize to a province, city, or network segment.
- **Independent corroboration** — this rests on a single source; treat it as a single-source signal, not a multi-source confirmation.

## Data Sources

ooni

## Citation

Voidly Research. (2026). Sustained censorship in LB (2026-05) [LB-2026-0248]. Retrieved from https://voidly.ai/incident/LB-2026-0248

---
*Report generated by Voidly Research on 2026-06-19*
*Data licensed under CC BY 4.0*
*Incident ID: LB-2026-0248*
*Permalink: https://voidly.ai/incident/LB-2026-0248*