Check if xfinity.com is down for everyone or just you
Comcast / Xfinity outages are usually caused by server overloads, failed deployments, CDN or DNS problems, DDoS attacks, or regional internet routing issues. isitdown.io checks Comcast / Xfinity from 4 regions (US East, US West, Europe, Asia) simultaneously. If all 4 fail, Comcast / Xfinity is down for everyone. If only some fail, the outage may be regional. If all pass but you still can't connect, the issue is on your local network, VPN, or DNS.
Click "Check Comcast / Xfinity now" above. isitdown.io pings xfinity.com from four global regions in parallel and reports which ones succeeded. If all four pass, the issue is local — try flushing your DNS cache, switching networks, disabling your VPN, or using a different browser. If two or more regions fail, the outage is on Comcast / Xfinity's side.
The live response-time graph above shows the last 24 hours of real checks against xfinity.com. Each data point is an actual HTTP request from our monitoring system — not a third-party feed. Green means up, red means down. Spikes indicate slow responses. Bookmark this page to check back during future outages.