Is Stack Overflow down right now?
No one has reported a problem in the last hour.
About Stack Overflow
stackoverflow.com is the official website of Stack Overflow, website for professional and enthusiast programmers. The company was founded in 2008. The domain was registered 22 years ago through CSC Corporate Domains, Inc.. The Internet Archive first captured it in 2004. It ranks #514 among the most visited sites in the world on the Tranco list. It is hosted in United States on the Cloudflare, Inc. network.
We have recorded no outage for Stack Overflow in the last 90 days; it answered 100% of our checks.
Reports, last 24 hours
0 reports · normally about 3 per hour| Problem reported | No reports in the last 24 hours. |
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One email when stackoverflow.com goes down and one when it recovers. No account needed; unsubscribe from any email.
What we checked
04:31:51 UTC| Layer | Result | Outcome |
|---|---|---|
| DNS name lookup | stackoverflow.com resolves to 198.252.206.1 (AS13335 Cloudflare, Inc.) | pass |
| TLS certificate | Certificate from Let's Encrypt, expires 2027-01-11 | pass |
| HTTP, Phoenix | HTTP 403 in 0.42 s · Reachable; the site answers automated requests with HTTP 403 5 h ago | pass |
| HTTP, United States | HTTP 403 in 0.14 s · Reachable; answered HTTP 403 3 h ago | pass |
| Content | Page title: “Just a moment...” | – |
| Reputation | Trust score 100/100 · trust check | Established |
Outage history, 90 days
No incidents recorded in the last 90 days.
Common questions
Is Stack Overflow down for everyone or just me?
Compare the test from your browser above with our server checks. If our servers reach stackoverflow.com and your browser cannot, the problem is on your connection, DNS or network. If both fail, the site is down.
How do you know if Stack Overflow is down?
We request the homepage from 8 locations, check DNS, the TLS certificate and the HTTP response, and compare the page content with what we saw before. We also read the service's official status feed where one exists and count visitor reports against the usual rate for the hour.
What can I do while it is down?
Subscribe to the alert on this page and we will email you when it recovers. Clearing your DNS cache or switching networks only helps when our servers can reach the site and your browser cannot.