voidly

Internet censorship in South Korea

South Korea (KR) · · Atom

9
Censorship Score
Level
low
Risk Tier
T4Low
Trend
− stable
Global Rank
#19
Incidents
3

Overview

South Korea blocks North Korean propaganda and some adult content categories.

Evidence provenance
3 records from 1 source
  • IODA3 (100%)
    ASN-level outage signals + BGP

Every record carries a permalink back to its upstream measurement. Click a source label to drill into the raw data for South Korea.

7-Day Risk Forecast

Predictive AI

Machine learning prediction of censorship risk based on historical patterns and political events. Calibrated 2026-05-20 via isotonic refit on 810 live outcomes. See drivers + similar past events →

Loading forecast...

Multi-horizon shutdown forecast — South Korea

monotonic ok
Next 1 day
27.1%
Next 7 days
58.8%
Next 30 days
70.0%

Honest scope: this is a current-regime risk signal, not a shutdown-onset predictor. It reliably flags countries already in a sustained blocking regime; on the days a new shutdown actually begins its skill is at/below chance (transition-row AUC ~0.33). Why →

ML Intelligence

Atlas models · 2026-05-21

Composite signals from Voidly Atlas's ML model suite — censorship intensity, contagion follow-risk, expected shutdown duration and behavioral peers. Model changelog →

Expected shutdown duration
~205days
If a critical shutdown occurs · IQR ±396d
Evidence grade mix (3)
B: 3
Grading rubric →
Behaviorally similar countries
JP86%ES75%BR68%

Similarity is behavioral (how a country blocks), not political.

Recent Incidents

3 active
Confirmed: internet outage in South Korea
May 3
63% anomaly · 13 measurements
Confirmed: internet outage in South Korea
Mar 22
98% anomaly · 5 measurements
Confirmed: network disruption in South Korea
Feb 28
85% anomaly · 6 measurements

ISPs in South Korea

Known blocked services

North Korean contentSome gambling sites

Recommendations

  • Use Voidly VPN for privacy
  • Enable encrypted DNS

Data

Measurements481,010
Blocked count45,176
Block rate9.4%
Last updated2026-05-23
API endpoint/data/country/KR

Protocol breakdown

472K
Web
5K
Telegram
5K
WhatsApp

Frequently asked questions about censorship in South Korea

Q01

Is the internet censored in South Korea?

+
Voidly classifies South Korea as low (censorship score 9/100, risk tier 4: Low). South Korea blocks North Korean propaganda and some adult content categories.
Q02

What websites are blocked in South Korea?

+
Recent measurements show blocking or interference for: North Korean content, Some gambling sites. The block-rate across all measured domains is 9.4% over 481,010 samples. Live per-domain status: https://api.voidly.ai/v1/accessibility/check?domain={domain}&country=KR.
Q03

How does South Korea's censorship compare globally?

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South Korea ranks #19 on the Voidly Global Censorship Index. The current trend is stable — no significant change in block rates.
Q04

What blocking methods are used in South Korea?

+
Voidly's pipeline detects DNS poisoning, TCP-RESET, blockpage injection, TLS-RESET / SNI-based blocking, and ASN-level outages. The exact method per domain is in each evidence permalink (https://api.voidly.ai/data/incidents?country=KR). Methodology: https://voidly.ai/methodology.
Q05

How fresh is the data for South Korea?

+
Voidly probes South Korea every 5 minutes from 37+ global probe nodes. Upstream OONI, IODA, and CensoredPlanet feeds refresh every 6 hours. The country snapshot was last regenerated 2026-05-23.
Q06

How can I check if a specific website is blocked in South Korea?

+
Three options. (1) REST: GET https://api.voidly.ai/v1/accessibility/check?domain=twitter.com&country=KR. (2) MCP: npx @voidly/mcp-server, then call check_domain_blocked with domain="twitter.com" country="KR". (3) CLI: npx @voidly/cli check twitter.com KR. All three return current status, blocking method, and evidence permalinks.
Q07

Can I use a VPN to bypass censorship in South Korea?

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Use Voidly VPN for privacy Enable encrypted DNS The full per-country recommendation list is on this page below.
Q08

How do I cite Voidly's data on South Korea in a paper or article?

+
Use the BibTeX or RIS export at https://voidly.ai/cite/KR (also linked from the Citation section below). Permanent incident IDs (e.g., KR-2026-NNNN) are issued for every confirmed event. License: CC BY 4.0 — credit Voidly Research and link back.

Cite this data

Voidly Research. (2026). South Korea Censorship Profile. https://voidly.ai/kr

License: CC BY 4.0 — free to use with attribution.

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