why does the checker say online but the site will not open for me?

onion sites are served over the tor network, which routes every visitor through different circuits. captchas, overloaded services or regional exit behavior can block your browser while our probe gets through. retry later and from a fresh tor circuit (new identity button).

do you log which onion addresses people check?

we do not keep query history beyond boring standard server logs that rotate away. the check itself is not tied to any profile and nothing is shared with third parties.

how is this different from the statuses on your homepage list?

the homepage list shows results from scheduled checks that run every 30 minutes. this tool runs a single on-demand probe of exactly one address at the moment you click the button.

a site answered here - is it safe?

absolutely not implied. online only means something responded. verify addresses against official sources and read our safety guide before entering anything anywhere.

home / tools / onion status checker

is this .onion up?

live check

paste any v3 .onion address and we try to reach it through our own tor connection - not your browser's. you get an instant snapshot of whether the service answers, how fast it responds, or whether it is dark. one moment in time though: results are a snapshot, never a guarantee.

paste the .onion address

only real v3 addresses are checked: 56 characters from a-z plus 2-7 (never 0, 1, 8 or 9), ending in .onion. schemes like http:// and trailing slashes pasted along are fine - they get stripped automatically.

run the check

where should this run?

local · not possible for live checks a browser cannot reach the tor network directly - probing requires our server-side tor connection. server · through our tor node the only way a live check works. processed in memory during this one request - never stored or logged.

javascript is off: the check runs on our server instead. it is processed in memory during this one request and never stored or logged.

the address you check is processed in memory during the probe and never stored or logged.

good to know

why does the checker say online but my browser cannot open it?: every tor visitor rides different circuits. captchas, an overloaded service or plain bad luck with your path through the network can block you while our probe sails through. hit "new identity" in tor browser and retry before blaming the site.
do you log which addresses get checked?: no query history is kept beyond boring standard server logs that rotate away. a check is not tied to any profile and nothing goes to third parties.
difference vs the statuses on the homepage list?: the homepage badges come from scheduled sweeps that run every 30 minutes across the whole list. this tool fires a single on-demand probe at exactly one address, the second you click.
a site answered here - is it safe?: absolutely not implied. "online" only means something responded. verify addresses against official sources and read our safety guide before entering anything anywhere.