GuideJuly 10, 2026·5 min read

The 5-Minute Outage Checklist: What to Do as Soon as an Important Site Goes Down

Skip the panic. Use this practical checklist to diagnose website outages in minutes and determine if the problem is on their end or yours.

When a critical service goes offline, your first instinct is usually wrong. You assume the site is down. Sometimes it is. Sometimes it's your connection, your DNS, or your ISP having issues. Sometimes the site is up but unreachable from your location due to regional routing problems. The next five minutes matter because they determine whether you're waiting helplessly or actually solving the problem. Here's what to do.

Step 1: Check Your Connection (60 seconds)

Open a different website immediately. Try Google, Amazon, or any major site you know is rock-solid. If that loads fine, the outage is isolated to the site you care about. If nothing loads, your internet is down. Test on mobile data too if you have it. Don't skip this step—it's the fastest way to eliminate 50% of possible causes. If your connection is down, contact your ISP and move on. If it's up, continue.

Step 2: Clear Your DNS Cache (90 seconds)

DNS failures cause more perceived outages than actual server downtime. Your computer caches DNS lookups, which means stale records can persist for hours. On Mac, run: `sudo dscacheutil -flushcache`. On Windows: `ipconfig /flushdns`. On Linux: `sudo systemctl restart systemd-resolved`. Then try the site again. This is non-obvious but catches real problems frequently. A surprising fact: DNS can fail regionally while the site itself is fine. Your ISP's DNS server might be unreachable while the site's servers are up and serving traffic to other users.

Step 3: Check WebsiteDown (30 seconds)

Go to WebsiteDown.com and search for the site. If thousands of users are reporting it down, you have confirmation it's a real outage affecting multiple regions. If only a handful report it, the problem is likely local to your network or ISP. This single check saves you from wasting time troubleshooting your own system when the real issue is somewhere between you and the target server. The data here is crowdsourced and updated in real-time.

Step 4: Try a Different Network (2 minutes)

Switch to mobile data, use a VPN, or ask someone else to visit the site from their network. If the site loads for them but not for you, your ISP or local network is blocking it. If it fails for everyone, it's a real outage. This step identifies geolocation blocks, ISP-level filtering, or network-specific routing issues. It's especially useful if you suspect your corporate network is interfering. Many outages that seem global are actually regional—this test proves it one way or the other.

Step 5: Document and Report (1 minute)

If it's a real outage, report it on WebsiteDown with your location and the error message you saw (connection timeout, 502, 503, etc.). If it's local, you now know to contact your ISP or network admin. Either way, you've spent five minutes and have a clear answer. Don't waste another 30 minutes refreshing and hoping. You either need to wait for the site to recover, contact your ISP, or adjust your network settings. Take action based on what you've learned, not guesswork.

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