Stack Overflow Outage History

Stack Overflow is up right now

Pingoru has recorded 7 incidents for Stack Overflow: 3 in the last 12 months and 1 in the last 90 days.

Source: stackstatus.net

7incidents recorded
3last 12 months
1last 90 days
5 daystypical duration

Incidents, newest first

Critical October 3, 2026 Stack Exchange Network is down 1d 12h Stack Overflow service, StackExchange Network Sites, StackExchange.com

Started Oct 03, 2026, 03:29 PM UTC· resolved Oct 05, 2026, 04:02 AM UTC

  1. investigating Oct 03, 2026, 04:09 PM UTC

    Stack Exchange network sites are down.

  2. monitoring Oct 03, 2026, 06:29 PM UTC

    Sites are back up and operational.

  3. resolved Oct 03, 2026, 06:53 PM UTC

    Everything seems stable.

  4. investigating Oct 05, 2026, 03:27 AM UTC

    We're investigating the network outage.

  5. resolved Oct 05, 2026, 04:02 AM UTC

    Sites are back up and stable

  6. resolved Oct 05, 2026, 04:02 AM UTC

    [Resolved] Sites are back up and stable Impacted: StackExchange Network Sites, StackExchange.com

Read the full incident report →

Critical July 17, 2026 Service disruption affecting Stack Internal 4h 3m Stack Overflow service, Stack Internal - Free, Basic, Business

Started Jul 17, 2026, 09:45 AM UTC· resolved Jul 17, 2026, 01:49 PM UTC

  1. identified Jul 17, 2026, 11:32 AM UTC

    We’re currently experiencing an outage affecting Stack Internal. The disruption began at approximately 3:00 a.m. Eastern Time, and our team is actively working to restore service as quickly as possible.

  2. resolved Jul 17, 2026, 01:49 PM UTC

    The outage has been resolved.

  3. resolved Jul 17, 2026, 01:49 PM UTC

    [Resolved] The outage has been resolved. Impacted: Stack Internal - Free, Basic, Business

Read the full incident report →

Major November 18, 2025 Site access could be degraded 13d 2h Stack Overflow service, StackExchange Network Sites

Started Nov 18, 2025, 01:09 PM UTC· resolved Dec 01, 2025, 03:35 PM UTC

  1. monitoring Nov 18, 2025, 02:06 PM UTC

    Cloudflare is currently having issues that can affect some users attempting to access the site. We are currently monitoring the situation.

  2. resolved Dec 01, 2025, 03:35 PM UTC

    Cloudflare incident has resolved.

  3. resolved Dec 01, 2025, 03:35 PM UTC

    [Resolved] Cloudflare incident has resolved. Impacted: StackExchange Network Sites

Read the full incident report →

Major September 20, 2025 SEDE is flapping 2d 14h Stack Overflow service, StackExchange.com

Started Sep 20, 2025, 12:17 AM UTC· resolved Sep 22, 2025, 02:50 PM UTC

  1. monitoring Sep 20, 2025, 01:23 AM UTC

    SEDE has been flapping due to unusual traffic, we have mitigated the issue for now but are actively monitoring the site.

  2. resolved Sep 22, 2025, 02:50 PM UTC

    SEDE has been stable throughout the weekend.

  3. resolved Sep 22, 2025, 02:50 PM UTC

    [Resolved] SEDE has been stable throughout the weekend. Impacted: StackExchange.com

Read the full incident report →

Critical April 22, 2025 SocketServer Down 10h 34m Stack Overflow service, StackExchange Network Sites

Started Apr 22, 2025, 02:28 PM UTC· resolved Apr 23, 2025, 01:02 AM UTC

  1. monitoring Apr 22, 2025, 03:51 PM UTC

    We have identified and resolved an issue with SocketServer that caused it to become unavailable.

  2. resolved Apr 23, 2025, 01:02 AM UTC

    The code fix has been deployed

  3. resolved Apr 23, 2025, 01:02 AM UTC

    [Resolved] The code fix has been deployed Impacted: StackExchange Network Sites

Read the full incident report →

Critical April 2, 2025 Stack Overflow Unavailable 1d 3h Stack Overflow service, StackExchange Network Sites

Started Apr 02, 2025, 01:16 PM UTC· resolved Apr 03, 2025, 04:54 PM UTC

  1. identified Apr 02, 2025, 03:10 PM UTC

    We are working on an issue causing Stack Overflow to be unavailable.

  2. monitoring Apr 02, 2025, 03:58 PM UTC

    We've identified and mitigated the issue that caused the site to become unavailable.

  3. resolved Apr 03, 2025, 04:54 PM UTC

    The site is now stable.

  4. resolved Apr 03, 2025, 04:54 PM UTC

    [Resolved] The site is now stable. Impacted: StackExchange Network Sites

Read the full incident report →

Minor April 1, 2025 Stack Overflow migration to GCP 6h 3m Stack Overflow service, StackExchange Network Sites, Stack Exchange API

Started Apr 01, 2025, 12:34 PM UTC· resolved Apr 01, 2025, 06:37 PM UTC

  1. investigating Apr 01, 2025, 01:16 PM UTC

    We are beginning our migration of Stack Overflow to GCP

  2. resolved Apr 01, 2025, 06:37 PM UTC

    The maintenance has been completed.

  3. resolved Apr 01, 2025, 06:37 PM UTC

    [Resolved] The maintenance has been completed. Impacted: StackExchange Network Sites, Stack Exchange API

Read the full incident report →