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Enter a domain to see recent country-level blocking signals from cached OONI measurements.

Reports show observed measurement signals, not formal attribution of who caused a disruption.

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Market view

S&P 500 company sites

Apr 18, 2026 to May 18, 2026 - updated May 18, 2026, 4:49 AM
Blocked of measured
43%
Blocked of index
1%
Strong signals
43%
Market cap with signals
$741.8B
Index coverage
3%

14 of 503 S&P 500 company sites had enough recent OONI measurements to be included. Market-cap exposure is the measured company value behind sites with observed blocking signals. It is directional, not a revenue-loss estimate.

Country map

Where public-company sites show signals

This view aggregates measured S&P 500 domains by country. Routes point from the U.S. market center toward countries where OONI probes observed blocking signals, scaled by known market cap.

1 country rows
$6.51T measured cap
11% cap exposed
CN

China

6 company sites - 49 measurements
$741.8B
NFLX - $366.4B IBKR - $147.6B CME - $108.3B
high confidence sample

Low-sample country rows suppressed from the command map: Iran (7 measurements).

Companies with the most market cap behind signals

Netflix

NFLX - netflix.com - $366.4B
100%

2 of 5 measured countries show a blocking signal.

IR - 100% (7 measurements) CN - 90% (24 measurements)

Interactive Brokers

IBKR - interactivebrokers.com - $147.6B
90%

1 of 1 measured countries show a blocking signal.

CN - 90% (1 measurement)

CME Group

CME - cmegroup.com - $108.3B
90%

1 of 1 measured countries show a blocking signal.

CN - 90% (8 measurements)

L3Harris

LHX - l3harris.com - $56.5B
90%

1 of 1 measured countries show a blocking signal.

CN - 90% (6 measurements)

Coinbase

COIN - coinbase.com - $51.5B
90%

1 of 1 measured countries show a blocking signal.

CN - 90% (9 measurements)

GoDaddy

GDDY - godaddy.com - $11.5B
90%

1 of 1 measured countries show a blocking signal.

CN - 90% (1 measurement)

Sector breakdown

Communication Services

1 of 2 measured company sites show blocking somewhere. Blocked cap: $366.4B
50%
NFLX - 100%

Financials

3 of 3 measured company sites show blocking somewhere. Blocked cap: $307.4B
100%
IBKR - 90% CME - 90% COIN - 90%

Industrials

1 of 1 measured company sites show blocking somewhere. Blocked cap: $56.5B
100%
LHX - 90%

Information Technology

1 of 4 measured company sites show blocking somewhere. Blocked cap: $11.5B
25%
GDDY - 90%

Watchlist

Common sites

Load a small set of common sites when you need it. Keeping this on demand helps the public page stay fast and cached.