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Outage tracker / Stack Overflow

Is Stack Overflow down?

I'm having a problem

Operationalchecked 23 minutes ago

We reached Stack Overflow from all 4 regions we check.

Functional endpoints verified

No outage recorded in the 14 days we have measured Stack Overflow (since Aug 20, 2026).

our independent probeslive · checked Sep 3, 2026, 1:06 AM UTC
US-East600 msOperational
US-West905 msOperational
Europe240 msOperational
Asia-Pacific990 msOperational
their status pagetheir claim, not our reading

Stack Overflow publishes no status feed we can read, so the only independent reading here is ours on the left.

Stack Overflow response time, by region

US-East
688msp95 · latest
2s1s0ms
US-East response time (p95) over the last 30 daysDaily 95th-percentile response time for US-East, scaled to a maximum of 2s. Days with no samples are not plotted, not shown as zero.2026-08-20 UTC: p95 939ms2026-08-21 UTC: p95 866ms2026-08-22 UTC: p95 790ms2026-08-23 UTC: p95 1.1s2026-08-24 UTC: p95 1s2026-08-25 UTC: p95 1.1s2026-08-26 UTC: p95 1.1s2026-08-27 UTC: p95 1.2s2026-08-28 UTC: p95 1.0s2026-08-29 UTC: p95 1.3s2026-08-30 UTC: p95 1.1s2026-08-31 UTC: p95 1.1s2026-09-01 UTC: p95 972ms2026-09-02 UTC: p95 678ms2026-09-03 UTC: p95 688ms
Aug 5Aug 19Sep 3
US-West
631msp95 · latest
1s500ms0ms
US-West response time (p95) over the last 30 daysDaily 95th-percentile response time for US-West, scaled to a maximum of 1s. Days with no samples are not plotted, not shown as zero.2026-08-20 UTC: p95 375ms2026-08-21 UTC: p95 363ms2026-08-22 UTC: p95 334ms2026-08-23 UTC: p95 557ms2026-08-24 UTC: p95 301ms2026-08-25 UTC: p95 456ms2026-08-26 UTC: p95 400ms2026-08-27 UTC: p95 652ms2026-08-28 UTC: p95 857ms2026-08-29 UTC: p95 426ms2026-08-30 UTC: p95 525ms2026-08-31 UTC: p95 471ms2026-09-01 UTC: p95 453ms2026-09-02 UTC: p95 683ms2026-09-03 UTC: p95 631ms
Aug 5Aug 19Sep 3
Europe
312msp95 · latest
1s500ms0ms
Europe response time (p95) over the last 30 daysDaily 95th-percentile response time for Europe, scaled to a maximum of 1s. Days with no samples are not plotted, not shown as zero.2026-08-20 UTC: p95 482ms2026-08-21 UTC: p95 452ms2026-08-22 UTC: p95 577ms2026-08-23 UTC: p95 502ms2026-08-24 UTC: p95 637ms2026-08-25 UTC: p95 660ms2026-08-26 UTC: p95 543ms2026-08-27 UTC: p95 528ms2026-08-28 UTC: p95 594ms2026-08-29 UTC: p95 614ms2026-08-30 UTC: p95 487ms2026-08-31 UTC: p95 502ms2026-09-01 UTC: p95 512ms2026-09-02 UTC: p95 660ms2026-09-03 UTC: p95 312ms
Aug 5Aug 19Sep 3
Asia-Pacific
960msp95 · latest
2s1s0ms
Asia-Pacific response time (p95) over the last 30 daysDaily 95th-percentile response time for Asia-Pacific, scaled to a maximum of 2s. Days with no samples are not plotted, not shown as zero.2026-08-20 UTC: p95 1.1s2026-08-21 UTC: p95 750ms2026-08-22 UTC: p95 924ms2026-08-23 UTC: p95 926ms2026-08-24 UTC: p95 808ms2026-08-25 UTC: p95 835ms2026-08-26 UTC: p95 971ms2026-08-27 UTC: p95 1.0s2026-08-28 UTC: p95 1.1s2026-08-29 UTC: p95 854ms2026-08-30 UTC: p95 797ms2026-08-31 UTC: p95 907ms2026-09-01 UTC: p95 915ms2026-09-02 UTC: p95 867ms2026-09-03 UTC: p95 960ms
Aug 5Aug 19Sep 3

Is it Stack Overflow, or is it you?

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.

What are you seeing? (optional)

No account needed, and we never store your IP address. Reports are counted separately from our own measurements and are always shown as unverified.

What we measured, and what people reported

  • US-East
    Operationallatency: 600msstatus code: 200checked: Sep 3, 2026, 1:03 AM UTC
    0 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-West
    Operationallatency: 905msstatus code: 200checked: Sep 3, 2026, 1:02 AM UTC
    0 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.
  • Europe
    Operationallatency: 240msstatus code: 200checked: Sep 3, 2026, 1:06 AM UTC
    0 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.
  • Asia-Pacific
    Operationallatency: 990msstatus code: 200checked: Sep 3, 2026, 1:01 AM UTC
    0 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.
  • US-Central
    Not monitored from this regionStack Overflow is not monitored from this region.
    0 people in the last 5 minutesNot enough reports to say
  • Canada
    Not monitored from this regionStack Overflow is not monitored from this region.
    0 people in the last 5 minutesNot enough reports to say
  • UK
    Not monitored from this regionStack Overflow is not monitored from this region.
    0 people in the last 5 minutesNot enough reports to say
  • Southeast Asia
    Not monitored from this regionStack Overflow is not monitored from this region.
    0 people in the last 5 minutesNot enough reports to say
  • Australia
    Not monitored from this regionStack Overflow is not monitored from this region.
    0 people in the last 5 minutesNot enough reports to say
  • South America
    Not monitored from this regionStack Overflow is not monitored from this region.
    0 people in the last 5 minutesNot enough reports to say

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 outages

No outages on record yet for Stack Overflow.

measured 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 measurements and Stack Overflow's own claim at the time, side by side.

Full availability history for Stack Overflow: 90-day availability by region, month-by-month uptime, and every incident 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 servers

Tell me when this goes down

Get told when we measure this

We will tell you when our probes stop reaching Stack Overflow, and again when they can reach it again. That is our own measurement from ten regions, not Stack Overflow's status page. No account, no card.

Delivery channel

Double opt-in: nothing is sent until you click the link in the confirmation email. One email when a measured outage opens, one when it closes, and a one-click unsubscribe in every one. We do not send anything else to this address.

Put this badge in your README

Stack Overflow uptime measured by RealUptimeLive, from this page's own readings.
[![Stack Overflow uptime measured by RealUptime](https://realuptime.io/outages/stack-overflow/badge.svg?days=30)](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 measured by RealUptime"></a>

The badge shows the share of our probes that succeeded 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: it will not show green on data we cannot vouch for. Free, no account, and it links back here. See how the badge works for every window and the honesty rules behind it.

What Stack Overflow's SLA implies, from our measurement

At or above your target

We measured none of downtime for Stack Overflow over the 337h 29m since we started watching it on 2026-08-20, which is 100% uptime by our reading. A 99.9% target allows 20 minutes over that period.

By our measurement there is no shortfall to claim for this period.

This is computed from our own probe measurements, 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

primaryfunctional
https://api.stackexchange.com/2.3/info?site=stackoverflow
RealUptime is not affiliated with Stack Overflow; the name identifies what we measured, and nothing here speaks for Stack Overflow's own team. We send a single web request to Stack Overflow from 4 regions on our own schedule and time the response. We do not see inside Stack Overflow's systems, do not use an account or real transaction, and are not the same signal Stack Overflow's own team has access to. Treat this as one external data point, not a verdict. At least one endpoint we check for Stack Overflow is a real functional API call (marked “functional” above), not just a landing page, so a clean read there is a stronger signal than reachability alone, though it still does not cover every feature of the service. Stack Overflow operates in a limited set of regions, so we only check it from where it is actually available; we do not probe from a region we know it does not serve. Read the full methodology.