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Is Costco down?

No, we are not detecting any problems with Costco right now.

Last checked 1 minute ago

What problem are you having with Costco?

Troubleshooting tips for Costco

If our monitor reports Costco is up but you still can't reach it, try these steps in order:

Hard-refresh your browser

  • Press Ctrl + F5 (Windows) or Cmd + Shift + R (Mac) to bypass the cache.
  • If that fails, open the page in an incognito / private window.

Clear cookies and cache

  • Open your browser settings → Privacy / History.
  • Clear cookies and cached files for the last hour, then reload.

Flush your DNS

  • Windows: open Command Prompt and run ipconfig /flushdns.
  • macOS: open Terminal and run sudo killall -HUP mDNSResponder.
  • Linux: run sudo systemd-resolve --flush-caches (or systemctl restart nscd).

Restart your router

  • Unplug the router and modem for 30 seconds.
  • Plug them back in and wait until all lights are stable, then retry.

Try a different DNS or VPN

  • Switch your DNS to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google).
  • Use a reputable VPN to test from a different country — useful when the site may be region-blocked.

30-day uptime

Daily probe results for Costco over the last 30 days.

30 days ago100.00% uptime · 0 days with incidentstoday
UpPartialDownNo data

Recent response times

earlierpeak 893msnow
Date & timeResponseStatus
1 minute ago7 msup
6 minutes ago326 msup
11 minutes ago313 msup
16 minutes ago649 msup
21 minutes ago59 msup
26 minutes ago659 msup
31 minutes ago6 msup
36 minutes ago8 msup
41 minutes ago326 msup
46 minutes ago6 msup
51 minutes ago5 msup
56 minutes ago7 msup

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