External vantage point
Our server on the internet requests the site directly: resolves the domain, opens a connection and gets the HTTP status. This answers whether the site is reachable at all.
Enter a site address and we check it from two sides at once: from our external vantage point on the internet and straight from your browser. The result tells you whether the site is down for everyone or the problem is only on your side — for example provider blocking, DNS or your network.
The check runs from our server and from your browser. We do not log or store the addresses you check.
The external check is a single request from our server; the local one runs in your browser. We do not log or store the addresses you check.
We look at the site from two independent sides and compare the results — that shows exactly where the problem is.
Our server on the internet requests the site directly: resolves the domain, opens a connection and gets the HTTP status. This answers whether the site is reachable at all.
In parallel we check availability from your network. If the site is up externally but not for you, the problem is local: provider, DNS or blocking.
We compare both points and explain the result in plain words: down for everyone, only for you, or the domain does not resolve at all — and what to do about it.
Quickly tell whether the site is down for everyone or it is your internet, before rebooting the router and calling your provider.
Check whether a site is blocked specifically by your provider — if it works externally but not for you, a VPN helps.
Confirm your site is visible from the internet, not just from the office network, and see the server response time.
Download LiMP VPN for free and feel the difference within a minute.
When a site stops opening, the first thing to know is where the problem is: on the site itself or in your connection. If the site is down for everyone, all you can do is wait for the owners to fix it. But if it works for others and only fails for you, the cause is in your network, provider, DNS or a block — and that can often be fixed yourself.
Our tool checks the site from two sides at once: from an external vantage point on the internet (our server) and straight from your browser. By comparing both results it gives a clear answer instead of guesswork.
If the external point sees the site but your browser does not, the cause is almost always local. The most common cases: the provider blocked the resource, DNS fails (the site does not resolve for you specifically), a firewall or browser extension interferes, or there is a temporary network glitch. Provider blocks and regional restrictions are bypassed with a VPN: traffic goes through an encrypted tunnel and a secure server, so restrictions on the provider's side no longer apply.
For security reasons a browser does not let scripts read the HTTP code of another site (the CORS rule). So the local check honestly shows only the fact: whether a connection from your network succeeded or not. We get the full HTTP status from the external point — our server, where there are no such limits. Together these two signals give the “everyone or just you” answer.
If a site is blocked by your provider or available only in another region, LiMP VPN routes your traffic through an encrypted tunnel and a server in the country you need. Your provider only sees the connection to the VPN, not the site addresses, so domain-list blocks stop working. Your real IP address and location are hidden as well.