Technical Overview
The domain costco.com is reachable and resolves to Poland via Unknown. Below we walk through the most relevant signals one by one.
Browser compatibility
Mainstream browsers will accept costco.com's TLS configuration if our probe returns "OK". The current value is: OK.
Maturity check
Maturity-wise, costco.com falls in the "mature" bracket — about 29.2 years on record. Most short-lived scams operate on domains under 12 months old, so age helps but does not exclude risk.
Routing & ISP
Traffic to costco.com currently terminates at Unknown in Poland — visible to anyone running a traceroute. Hosting-country mismatches with the brand audience can be a useful signal.
Beyond the technical score
A clean technical profile only proves costco.com follows industry plumbing standards. It does NOT prove honest content. Always read the actual site before transacting.
Bottom line
costco.com ends up at 100/100 — that is very_safe in our scale. The result is computed from public technical data only, no human review.