Is Stack Overflow down?
Checks passingchecked 2 minutes ago
Our checks of Stack Overflow pass from all 10 regions we check.
As of Oct 11, 2026, 9:22 PM UTC, RealUptime's checks of Stack Overflow passed in all 10 regions that returned a reading.
Our checks of Stack Overflow did not fail from two or more distant regions in the 52 days we have checked it (since Aug 20, 2026). This does not show Stack Overflow works for users.
Stack Overflow publishes no status feed we can read, so the only reading here is our check reading on the left.
Stack Overflow response time, by region
Check your own site while you wait on Stack Overflow
Watching an outage above does not tell you whether your own connection or site is also having a problem. Enter your own URL for one live check, right now, no signup. This checks the site you enter, not Stack Overflow -- it cannot diagnose Stack Overflow's own systems.
Get an email when our checks of Stack Overflow fail from two or more distant regions, and again when they pass
Get an email when our checks change
We will email you when our checks of Stack Overflow fail from two or more distant regions, and again when they pass. No account, no card.
What our checks show, and what people reported
- North AmericaChecks passingUS-East, US-West, US-Central, Canada
- US-EastChecks passinglatency: 340msstatus code: 200checked: Oct 11, 2026, 9:21 PM UTC0 people in the last 5 minutesNot enough reports to sayOur US-East probes reach Stack Overflow normally. We do not have enough reports from US-East to say anything about what people there are seeing.
- US-WestChecks passinglatency: 695msstatus code: 200checked: Oct 11, 2026, 9:19 PM UTC0 people in the last 5 minutesNot enough reports to sayOur US-West probes reach Stack Overflow normally. We do not have enough reports from US-West to say anything about what people there are seeing.
- US-CentralChecks passinglatency: 317msstatus code: 200checked: Oct 11, 2026, 9:14 PM UTC0 people in the last 5 minutesNot enough reports to sayOur US-Central probes reach Stack Overflow normally. We do not have enough reports from US-Central to say anything about what people there are seeing.
- CanadaChecks passinglatency: 128msstatus code: 200checked: Oct 11, 2026, 9:07 PM UTC0 people in the last 5 minutesNot enough reports to sayOur Canada probes reach Stack Overflow normally. We do not have enough reports from Canada to say anything about what people there are seeing.
- South AmericaChecks passinglatency: 791msstatus code: 200checked: Oct 11, 2026, 9:21 PM UTC0 people in the last 5 minutesNot enough reports to sayOur South America probes reach Stack Overflow normally. We do not have enough reports from South America to say anything about what people there are seeing.
- EuropeChecks passingEurope, UK
- EuropeChecks passinglatency: 462msstatus code: 200checked: Oct 11, 2026, 9:22 PM UTC0 people in the last 5 minutesNot enough reports to sayOur Europe probes reach Stack Overflow normally. We do not have enough reports from Europe to say anything about what people there are seeing.
- UKChecks passinglatency: 220msstatus code: 200checked: Oct 11, 2026, 9:08 PM UTC0 people in the last 5 minutesNot enough reports to sayOur UK probes reach Stack Overflow normally. We do not have enough reports from UK to say anything about what people there are seeing.
- Asia PacificChecks passingAsia-Pacific, Southeast Asia, Australia
- Asia-PacificChecks passinglatency: 639msstatus code: 200checked: Oct 11, 2026, 9:22 PM UTC0 people in the last 5 minutesNot enough reports to sayOur Asia-Pacific probes reach Stack Overflow normally. We do not have enough reports from Asia-Pacific to say anything about what people there are seeing.
- Southeast AsiaChecks passinglatency: 367msstatus code: 200checked: Oct 11, 2026, 9:07 PM UTC0 people in the last 5 minutesNot enough reports to sayOur Southeast Asia probes reach Stack Overflow normally. We do not have enough reports from Southeast Asia to say anything about what people there are seeing.
- AustraliaChecks passinglatency: 625msstatus code: 200checked: Oct 11, 2026, 9:09 PM UTC0 people in the last 5 minutesNot enough reports to sayOur Australia probes reach Stack Overflow normally. We do not have enough reports from Australia to say anything about what people there are seeing.
Somewhere else or not sure: 0 people in the last 5 minutes
These are unverified reports from people using Stack Overflow, counted separately from what our own probes measure. Anyone can file one, no account is needed, and the region on a report is chosen by the person filing it. We never open, extend or close an outage in our record based on report volume: only our own measurements do that. We have not received any reports for Stack Overflow yet, which is not evidence that nothing is wrong.
Recent probe events
No probe events on record yet for Stack Overflow.
check entries are our own probes' readings; declared entries are the vendor's. How this check works
We have been measuring Stack Overflow since August 20, 2026. We show nothing from before that date, and we never add an outage we did not observe ourselves, from any source.
Need this in writing? Generate an SLA evidence report for Stack Overflow covering any window you pick, with our check readings and Stack Overflow's own claim at the time, side by side.
Full check history for Stack Overflow: 90 days of check results by region, month-by-month uptime by our checks, and every probe event on record.
Monitor your own site the same way
This page shows what we see when we check this service, using the same ten regions, for a site you run. RealUptime Monitor watches your own servers from inside your network, and it starts free.
Start monitoring your own serversPut this badge in your README
Live, from this page's own readings.[](https://realuptime.io/outages/stack-overflow)<a href="https://realuptime.io/outages/stack-overflow"><img src="https://realuptime.io/outages/stack-overflow/badge.svg?days=30" alt="Stack Overflow uptime by RealUptime's checks"></a>The badge shows the share of our checks that passed over the last 30 days, and the window is printed on it so the number always says what period it covers. If our readings go stale it says stale, and if we have no readings it says so and shows no color. Free, no account, and it links back here. See how the badge works for every window and the honesty rules behind it.
How our checks compare with Stack Overflow's stated SLA
At or above your target
Our checks of Stack Overflow failed for none over the last 30 days, which is 100% uptime by our checks. A 99.9% target allows 43 minutes over that period.
Our checks show no gap in this period. That does not rule out one you saw.
These figures come from our own checks of one public endpoint per service. They are not the service's real uptime. This is computed from our own checks, not from Stack Overflow's SLA instrumentation. Their contract is normally measured against their own systems, with their own exclusions and a claim window, so their figure and ours will differ. Use this to start the conversation and ask for their number. It is not legal advice and it is not a determination of what you are owed.
What we check
What our check can and cannot see
A pass means a public route of the service's API answered our request normally. We do not check what it returned, so it does not show that the data is right, that sign-in works or that the rest of the product works.
Host checked: api.stackexchange.com