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Provider of K-12 adaptive learning solutions and integrated curriculum.
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Is Houghton Mifflin Harcourt down?
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Service status and report activity over the last 24 hours, in 15-minute intervals. Early warnings and official incidents are shown separately.
Loading reports… · Last 24 hours
Tap a bar to keep its details open. With the chart focused, use Left and Right to move between intervals, Home or End to jump, and Escape to close. Full data is available in the table below.
| Start | End | Reports | Status |
|---|
Status verification pending
The latest official observation is not fresh enough to confirm current service health.
Official provider status0 outage reports in the last 24 hours.
Official status observations, not measured service uptime.
Official incidents, early warnings and community reports are identified separately. Early warning history covers only the last 24 hours. Dates use your time zone.
| Incident name | Duration | StartedUTC | Acknowledged | Severity |
|---|---|---|---|---|
| 77h 10m | Yes | Unknown | ||
| 24h 54m | Yes | Minor | ||
| 68h 4m | Yes | Minor | ||
| 3h 52m | Yes | Minor | ||
| 94h 58m | Yes | Major | ||
| 3h 29m | Yes | Major | ||
| 23h 38m | Yes | Minor | ||
| 169h 19m | Yes | Minor |
Planned work published by the official provider.
The scheduled maintenance has been completed.
Started Aug 17, 2025, 05:00 PM UTC · Resolved Aug 17, 2025, 06:00 PM UTC
The scheduled maintenance has been completed.
Started Aug 9, 2025, 01:00 AM UTC · Resolved Aug 10, 2025, 10:00 PM UTC
The scheduled maintenance has been completed.
Started Jul 23, 2025, 02:30 AM UTC · Resolved Jul 30, 2025, 07:30 AM UTC
The scheduled maintenance has been completed.
Started Jul 15, 2025, 04:07 PM UTC · Resolved Jul 16, 2025, 09:00 PM UTC
The scheduled maintenance has been completed.
Started Jul 12, 2025, 09:12 PM UTC · Resolved Jul 13, 2025, 10:12 AM UTC
The scheduled maintenance has been completed.
Started May 10, 2025, 03:30 AM UTC · Resolved May 12, 2025, 11:00 AM UTC
The scheduled maintenance has been completed.
Started Jan 24, 2025, 03:00 AM UTC · Resolved Jan 24, 2025, 04:00 AM UTC
The scheduled maintenance has been completed.
Started Nov 22, 2024, 02:00 AM UTC · Resolved Nov 22, 2024, 03:30 AM UTC
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Uptimus monitors Houghton Mifflin Harcourt through its official status source and normalizes published incidents, maintenance windows and component health into one consistent service status.
This page currently includes 19 monitored components, 23 indexed incidents, 11 maintenance windows and 1 days of known history.
Uptimus is an independent monitoring service and is not affiliated with Houghton Mifflin Harcourt. A healthy status does not guarantee that every user, device or region is unaffected.
Get notified when Houghton Mifflin Harcourt or one of its monitored components reports a major outage or another critical service disruption. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations. The available history contains 23 indexed incidents, giving each alert context beyond the current status. A recent indexed incident was “Ed Login Issue”.
Get notified about degraded performance, partial impact and smaller incidents that do not represent a complete outage. Uptimus currently tracks 19 Houghton Mifflin Harcourt components: Login, Login, Login, Content and Resources. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations.
Downdetector public pages are led by user reports. Uptimus combines community activity with official provider incidents, maintenance windows and component health when the source publishes them.
| Comparison criteria | Uptimus | Downdetector |
|---|---|---|
| Community outage reports for Houghton Mifflin Harcourt |
The current official status of Houghton Mifflin Harcourt cannot be verified. The latest stored provider observation indicated normal operation. 0 reports were recorded for Houghton Mifflin Harcourt in the last 24 hours. Last official check: .
| Included |
| Included |
| Adaptive baseline that separates isolated reports from wider disruption | Included | Included |
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| 24-hour report activity and regional outage view | Included | Included |
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| One workspace for websites, provider status pages, Steam games and Android apps and games | Included | Separate product |
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| Email, push and webhook alerts from the same workspace | Included | Separate product |
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| Official incident updates and status timeline for Houghton Mifflin Harcourt | Included | User-report led |
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| Component health and maintenance windows kept separate | Included | Limited on public pages |
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