How checks work

A simple answer, backed by checks.

We check how websites behave in different places, look for repeated trouble, and turn the latest results into a clear answer.

Background coverage

The research index checks for changes every hour.

Checking the latest background update…

websites ready to check
research lists in use
lists watched for changes
Checking… last background refresh

Four simple steps

From a website name to a useful answer

Each step has one job.

  1. 1 Choose websites Popular sites and background research help us decide what is worth checking.
  2. 2 Run fresh checks We look at how a site behaves on networks in different countries.
  3. 3 Compare patterns Repeated, similar failures matter more than one broken connection.
  4. 4 Explain the result We show what happened, where it happened, and when it was checked.

Reading an answer

Three results you may see

Open a result to see its countries, checks, and updated time.

Blocked

A block was found.

Several checks showed a meaningful access problem. Open the country details to see where and how strong it was.

Not blocked

No block was found.

The available checks did not show a strong blocked pattern.

Unknown

There is not enough data yet.

Too few recent checks or mixed results.

Why results change

Your experience may be different

A country is not one network. Access can change during the day and can differ between home internet, mobile service, workplaces, and cities.

Different providers

One provider may filter a service while another still reaches it normally.

Different places

A local block or outage may affect one region without affecting the whole country.

Different times

Controls can begin, end, or change quickly, so the date of a check matters.

Different coverage

Some places have many recent checks. Others have only a few, which lowers confidence.

Optional technical detail See which evidence matters most

See how the evidence layers fit together.

01
Can shape the answer

Fresh website checks

Recent tests from real networks show whether a site loaded normally or ran into a repeatable problem.

02
Build confidence

Repeated patterns

The same kind of failure across more than one check matters more than a single broken request.

03
Helps explain

Outage and network context

A widespread outage or routing problem can look like blocking. This context helps us avoid the wrong conclusion.

04
Choose what to check

Research lists

Background lists help choose websites for fresh checks.

Read the full method