Website Availability by Country

Whether a website loads in a given country depends on physical infrastructure: submarine cables, national ISPs, and sometimes government filtering. This hub collects per-country availability profiles built from live measurement data - the same data that powers our Global Availability Checker, which tests any URL from 80+ countries in seconds.

Each country page shows the submarine cable systems serving that market with live health links, the leading ISPs and their current status, national filtering verdicts from DNS measurements, recent nationwide connectivity events, and an assessment of how resilient the country is to cable failures. The numbers refresh automatically every night.

Country profiles (30)

How availability differs by country

A website that is perfectly healthy at its origin can still be unreachable in a specific country. Traffic between continents runs over a small set of submarine cables; when one fails, countries that depend on it see latency spikes or partial outages until a repair ship fixes the fault. Inside each country, a handful of ISPs carry most users, and a DNS or routing fault inside one of them makes sites appear down for millions of people. And in some markets, national filtering silently removes entire categories of sites.

That is why the only reliable way to answer the question «is this site down or is it just me?» is to test from many countries at once. Run any URL through the Global Availability Checker, or trace which physical cables carry traffic to a site with the Internet Route Analyzer.

How to read the country profiles

The cable table on each page lists every submarine system landing in the country, with length and in-service year; each name links to a live health page with latency measurements against a 24-hour baseline. The ISP table shows the networks that carry most of the country's users, based on APNIC population estimates, together with their current anomaly status from hourly BGP and active-probing signals. The resilience section translates the topology into a practical answer: what actually happens to connectivity there when a cable breaks, and how long repairs at sea usually take. Where our DNS measurements detect national filtering, the profile says so explicitly, because a blocked site is indistinguishable from a dead one for users inside the country.