Censys Outage History

54 incidents recorded over the last 365 days, 46 of them resolved, 1 still open. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.

Live Censys status100.00% uptime history

Every Recorded Censys Incident

Censys incidents, newest first, with date, duration and status.
DateIncidentDurationStatus
Nov 14, 2026Censys ASM Maintenance WindowCensys ASM will be unavailable on Saturday, November 14, 2026, starting at approximately 4:30 PM US Eastern until 11:30 PM US Eastern to perform database upgrades. During this window the Censys ASM API and Web UI will…7h 0mScheduled
Nov 4, 2026Several API endpoints unavailableWe have applied a mitigation and the affected API endpoints are recovering. We are continuing to montiro the services to confirm stability—Investigating
Nov 2, 2026Searches are failingCensys Engineering has concluded remediation of the search issues and confirmed it has remained remediated over the last 24 hours. All systems are operating normally again.24h 33mResolved
Nov 2, 2026Censys ASM: Down for MaintenanceThis maintenance has been rescheduled to Sunday, November 1st, 2026, due to capacity constraints at our cloud compute provider.2h 0mScheduled
Oct 26, 2026Censys ASM: Workspace Creation DisabledWorkspace creation is active again. Censys ASM is back to operating normally.105h 0mScheduled
Oct 22, 2026ASM Missing ScreenshotsCensys Engineering has resolved the issue causing ASM screenshots to not display.191h 0mResolved
Oct 19, 2026Temporary decrease in ASM web entity countsThe issue affecting ASM web entity counts has been resolved, and we are closing this incident.42h 54mResolved
Oct 9, 2026False "Insecure SSL/TLS Key Length" ASM risksThe missing public key information has been added to all impacted certificates. Related ASM risks are now closed.71h 55mResolved
Sep 30, 2026Internal networking outage in Censys Platform and ASMThis issue has been resolved and Censys is fully operational.13h 11mResolved
Sep 20, 2026Periodic query failures on PlatformSupply Chain Intelligence Beta will be operating normally again. There may be a delay for customers to see asset updates in their supply chains, but we expect those to begin updating again.64h 8mResolved
Sep 18, 2026Historical data calls are timing outThis incident has been resolved. Censys Platform is operating normally.1h 8mResolved
Sep 16, 2026Errors on some asset pagesThe fix is in place.12 minResolved
Sep 12, 2026Some AI-Powered Features Degraded (Censys GPT Query Generation, Risk Summarizer)Resolved — Systems have been restored73h 36mResolved
Aug 28, 2026Brief Censys ASM Downtime for Database MaintenanceThe scheduled maintenance has been completed.1h 0mScheduled
Aug 24, 2026Platform Intermittent 500sCensys Engineering has confirmed that no issues linger from the incident. All services are operating as expected. We thank you for your patience while we worked on resolving the issue.20h 0mResolved
Jul 16, 2026Asset details performance degradationAsset details performance issues have been resolved.21h 53mResolved
Jul 15, 2026ASM Assistant UnavailableThe ASM Assistant issue has now been resolved.38 minResolved
Jul 12, 2026Censys Platform Query Assistant UnavailableQuery Assistant is fully operational.1h 9mResolved
Jul 8, 2026Censys ASM: Performance ImprovementsThe scheduled maintenance has been completed.1h 0mScheduled
Jun 25, 2026Platform Censys Assistant UnavailableThe issue affecting the in-platform Chat Assistant has been resolved, and the service is operating normally. The disruption was caused by an upstream AI model dependency becoming unavailable. We updated the service to…55 minResolved
Jun 12, 2026Risk Instance Generation DelaysWe have resolved a configuration issue prevented certain Risk Instances from being generated. The fix has been implemented, and all workspaces should now accurately reflect generated Risk Instances and associated risk…30h 29mResolved
Jun 8, 2026Delays Processing ASM RescansWe identified an issue causing delays in ASM rescan processing for some customers. To help alleviate the delays, we have increased system capacity and are closely monitoring performance. Rescans may continue to take…332h 48mResolved
Jun 3, 2026Delayed ASM Asset Inventory UpdatesAll workspaces have been updated.21h 29mResolved
Jun 2, 2026May 29, 2026 Data Download Snapshots UnavailableCensys has identified and remediated an issue that affected Data Download snapshot generation on May 29, 2026. As a result, we are unable to regenerate the May 29th snapshot, and it has been removed from the list of…-5862 minResolved
May 30, 2026Authentication IssuesCensys Engineering has been monitoring the incident post mitigation. Authentication is working as expected for all Censys applications.8h 25mResolved
May 28, 2026Multiple products unable to run searchesAll outstanding backlogs have been processed and all services have fully recovered. Search index data, Collections, and Data Downloads are all updating normally. Censys Engineering will continue to monitor to confirm…127h 24mResolved
May 27, 2026Documentation OutageA fix for the outage affecting ReadMe, our documentation hosting provider, has been implemented. While ReadMe is still monitoring the outage, our documentation is now available.2h 27mResolved
May 8, 2026Inventory updates are delayedAttack Surface Management inventory is now updated. Discovery and Association processes will resume at their regularly scheduled intervals.9h 49mResolved
May 6, 2026Virtual Hosts Snapshot did not generate for 2026-05-05The missing virtual hosts snapshots has posted to the Censys Data Downloads API. This incident is resolved.20h 39mResolved
May 4, 2026Natural Language Search Query Generation DisruptionOur team has fixed the issue.22h 47mResolved
May 1, 2026Data Downloads are UnavailableThis issue has been resolved and data downloads have been working normally for the last hour.2h 1mResolved
Apr 9, 2026Intermittent errors from Platform and SearchCensys systems have returned to normal operation.23h 28mResolved
Apr 7, 2026Intermittent Query FailuresCensys Engineering observed intermittent query failures for Search and Platform, including APIs-1519 minResolved
Mar 29, 2026Censys Search Application UnreachableThis incident is resolved.25h 30mResolved
Mar 24, 2026Saved Query Alerts are getting disabled incorrectlyIssue has been resolved.71h 35mResolved
Mar 24, 2026Scans from previously unpublished IP rangesCensys Engineering identified an issue that caused new scans to originate from previously unpublished IP ranges. These IP ranges have now been added to our publicly listed addresses on our documentation…0 minResolved
Mar 17, 2026ASM Inventory ErrorsThis issue is resolved and ASM is operating normally.43 minResolved
Mar 9, 2026Vendor OutageThe vendor has indicated that the issue is no longer affecting services that could impact Censys. We've internally confirmed that our systems are operating normally.3h 39mResolved
Feb 25, 2026Storage Buckets are not appearing in Attack SurfaceThis incident has been resolved.22h 22mResolved
Feb 12, 2026Censys Search: Database MaintenanceDatabase maintenance has concluded successfully.30 minScheduled
Feb 4, 2026Intermittent Platform DegradationNo additional issues have been observed, we're closing this issue.26h 3mResolved
Jan 29, 2026Cloud Connector Asset Cleanup DelayThe backlog of outdated cloud connector assets has been fully cleared. All systems are operating normally and no further impact is expected.146h 9mResolved
Jan 27, 2026Delayed Logins Across ASM, Legacy Search, and the PlatformOur Engineering team fixed the issue that caused the delayed logins across ASM, Legacy Search, and the Platform.162h 35mResolved
Jan 27, 2026Timeouts/delays on the Integrations and Saved Query Automation PagesWe have resolved the issue causing the timeouts and delays on the Integrations page and Saved Query Automations.42h 56mResolved
Jan 20, 2026Delay in Certificate Incremental Update SnapshotsThe issue causing delays in Certificate Incremental Update snapshots has been resolved. Snapshot generation has resumed, and data is now up to date.4h 58mResolved
Jan 12, 2026Delay in Data Download UIDs SnapshotsOur Engineering team has resolved the issue impacting UID snapshots. As a result, we are unable to regenerate the snapshots from 1/9 - 1/11. The generation of snapshots have returned to normal, and we appreciate your…103h 12mResolved
Dec 10, 2025New Risks Propagation DelayThis incident has been resolved.1171h 51mResolved
Dec 8, 2025ASM Rescans Not CompletingThe issue affecting ASM rescans has been fully resolved. We appreciate your patience as our team worked to address the problem.24h 24mResolved
Nov 27, 2025Data Downloads Issues from Platform APIThis incident has been resolved.1 minResolved
Nov 25, 2025Ports & Protocols and Insights Issue - ResolvedThe issue affecting the Ports & Protocols and Insights features within ASM has been fully resolved. Customers should now see complete and accurate data in these views. Our team identified the root cause and implemented…-6 minResolved
Nov 24, 2025ASM risk instances not loadingThe issue where risk instances were not loading has now been fully resolved. All services are operating normally.30 minResolved
Nov 18, 2025Censys system outageCensys is considering this incident resolved. Cloudflare has reported that their systems have fully returned to normal and we can confirm ours have as well.6h 16mResolved
Nov 14, 2025Degraded Performance for Censys Platform : Threat Hunting ModuleWe’ve identified a potential cause impacting the Threat Hunting Service, specifically the Threats page experience. Our team has pushed a fix to restore full functionality.-56 minResolved
Nov 13, 2025Maintenance - ASM services will be intermittently unavailableThe scheduled maintenance has been completed.30 minScheduled

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How to Read This Censys Incident Log

Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before Censys acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.

Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.

The longest single Censys outage in this window ran 48d 19h, against a mean recovery of 2d 14h. If you depend on Censys in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.