Internet censorship in Iran
Iran (IR) · · Atom
14
Censorship Score
Level
lowRisk Tier
T1SevereTrend
↑ worseningGlobal Rank
#6Incidents
—Overview
Iran implements pervasive internet filtering, blocking social media and news sites. Filtering intensifies during protests and political events.
Evidence provenance
No evidence records attached to this country yet. Once probes or upstream alerts fire, attribution appears here.
7-Day Risk Forecast
Predictive AIMachine 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...
ML Intelligence
Atlas models · 2026-05-21Composite signals from Voidly Atlas's ML model suite — censorship intensity, contagion follow-risk, expected shutdown duration and behavioral peers. Model changelog →
Expected shutdown duration
~5days
If a critical shutdown occurs · IQR ±2d
Try-first circumvention tool
Tor · anonymity-network · 78% probe success (partial)
Recent Incidents
No incidents recorded for Iran.
ISPs in Iran
Known blocked services
YouTubeFacebookTwitterTelegramInstagram
Recommendations
- Use Voidly VPN with bridge mode
- Enable domain fronting
- Use encrypted DNS
Data
Measurements590,398
Blocked count266,692
Block rate45.2%
Last updated2026-08-13
API endpoint
/data/country/IRProtocol breakdown
568K
Web
11K
Telegram
11K
WhatsApp
Frequently asked questions about censorship in Iran
Q01Is the internet censored in Iran?
+
Voidly classifies Iran as low (censorship score 14/100, risk tier 1: Severe). Iran implements pervasive internet filtering, blocking social media and news sites. Filtering intensifies during protests and political events.
Q02What websites are blocked in Iran?
+
Recent measurements show blocking or interference for: YouTube, Facebook, Twitter, Telegram, Instagram. The block-rate across all measured domains is 45.2% over 590,398 samples. Live per-domain status: https://api.voidly.ai/v1/accessibility/check?domain={domain}&country=IR.
Q03How does Iran's censorship compare globally?
+
Iran ranks #6 on the Voidly Global Censorship Index. The current trend is worsening — block rates trending up.
Q04What blocking methods are used in Iran?
+
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=IR). Methodology: https://voidly.ai/methodology.
Q05How fresh is the data for Iran?
+
Voidly probes Iran every 5 minutes from 37+ global probe nodes. Upstream OONI, IODA, and CensoredPlanet feeds refresh every 6 hours. The country snapshot was last regenerated 2026-08-13.
Q06How can I check if a specific website is blocked in Iran?
+
Three options. (1) REST: GET https://api.voidly.ai/v1/accessibility/check?domain=twitter.com&country=IR. (2) MCP: npx @voidly/mcp-server, then call check_domain_blocked with domain="twitter.com" country="IR". (3) CLI: npx @voidly/cli check twitter.com IR. All three return current status, blocking method, and evidence permalinks.
Q07Can I use a VPN to bypass censorship in Iran?
+
Use Voidly VPN with bridge mode Enable domain fronting Use encrypted DNS The full per-country recommendation list is on this page below.
Q08How do I cite Voidly's data on Iran in a paper or article?
+
Use the BibTeX or RIS export at https://voidly.ai/cite/IR (also linked from the Citation section below). Permanent incident IDs (e.g., IR-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). Iran Censorship Profile. https://voidly.ai/ir
License: CC BY 4.0 — free to use with attribution.