Global access monitor

Is this website blocked?

Check a website in seconds. See where recent checks found blocks, where they did not, and when there is not enough data yet.

More options

Paste a full URL or type a domain. No account needed.

Company scale

in reported value

Big sites. Big companies.

Matching blocked sites to the companies behind them.

  • Checking companies
  • Checking S&P 500 matches
  • Checking other sites
  • Checking value dates

Company view

Companies behind blocked sites

Largest first
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Latest reports

What is changing now.

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The big picture

Internet controls are not all the same.

Some countries filter websites at their borders. Others place controls inside local networks or can separate domestic services from the wider internet.

A request normally travels straight to a website. Internet controls can interrupt, redirect, slow, or inspect it along the way.
A website request meeting several filtering gates

China

China's Great Firewall

The world's best-known national filtering system.

Explore China
A central control point connected to several internet providers

Russia

Russia's Sovereign RuNet

Provider-level controls coordinated across a national network.

Explore Russia
A domestic network ring with a controlled path to the wider internet

Iran

Iran's filtered internet and National Information Network

Domestic infrastructure combined with tightly controlled global access.

Explore Iran

How it works

A clear answer, without the jargon.

See where checks ran, what they found, and when they were updated.

01

Enter a site

Use a domain or paste a full website address.

02

We compare

Repeated recent trouble matters more than a single failed test.

03

You get context

See what happened, where it happened, and how certain the result is.