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Last checked Sep 8, 3:45 PM UTC

Houghton Mifflin Harcourt status

Provider of K-12 adaptive learning solutions and integrated curriculum.

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Source: official status page

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OverviewActivityHistoryCommunityAbout

Houghton Mifflin Harcourt service health graph

Service status and report activity over the last 24 hours, in 15-minute intervals. Early warnings and official incidents are shown separately.

Houghton Mifflin Harcourt activity

Loading reports… · Last 24 hours

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————Now
  • No problems detected
  • Possible problems
  • Problems detected
  • Early warning
  • Official incident

Small green bars: normal status (illustrative). Taller bars: report activity.

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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.

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15-minute report intervals · UTC
StartEndReportsStatus

Latest activity

Last 24 hours
  1. Status verification pending

    The latest official observation is not fresh enough to confirm current service health.

    Official provider status
    Sep 8, 3:45 PM UTC

Houghton Mifflin Harcourt outage reports

0 outage reports in the last 24 hours.

No recent outage reports

No community outage reports have been submitted for this service in the last 24 hours.

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Monitor Houghton Mifflin Harcourt with Uptimus and get alerts when its status changes.

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Houghton Mifflin Harcourt outage map

Approved reports from the last 24 hours, grouped by country. Markers show country-level locations, not precise locations or confirmed affected infrastructure.
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Houghton Mifflin Harcourt outage map

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Houghton Mifflin Harcourt status history

Official status observations, not measured service uptime.

Last 60 daysDaily history
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——
  • Operational
  • Issues
  • Outage
  • Maintenance
  • No data

Houghton Mifflin Harcourt components

Component nameStatus
Houghton Mifflin Harcourt ThinkCentral — Login statusUp
Houghton Mifflin Harcourt HMH Ed — Login statusUp
Houghton Mifflin Harcourt Holt McDougal Online — Login statusUp
Houghton Mifflin Harcourt HMH Ed — Content and Resources statusUp
Houghton Mifflin Harcourt ThinkCentral — Content and Resources statusUp
Houghton Mifflin Harcourt Holt McDougal Online — Content and Resources statusUp
Houghton Mifflin Harcourt Holt McDougal Online — Assignments statusUp
Houghton Mifflin Harcourt HMH Ed — Assignments statusUp
Houghton Mifflin Harcourt ThinkCentral — Assignments statusUp
Houghton Mifflin Harcourt Contact Center statusUp

Houghton Mifflin Harcourt incident history

Official incidents, early warnings and community reports are identified separately. Early warning history covers only the last 24 hours. Dates use your time zone.

View more history
Incident nameDurationStartedUTCAcknowledgedSeverity
Official status·Resolved77h 10mMay 29, 20262:10 PM UTCYesUnknown
Official status·Resolved24h 54mMar 10, 20263:07 PM UTCYesMinor
Official status·Resolved68h 4mFeb 20, 20266:59 PM UTCYesMinor
Official status·Resolved3h 52mJan 29, 20264:10 PM UTCYesMinor
Official status·Resolved94h 58mJan 8, 20267:52 PM UTCYesMajor
Official status·Resolved3h 29mNov 10, 20254:45 PM UTCYesMajor
Official status·Resolved23h 38mOct 20, 20254:34 PM UTCYesMinor
Official status·Resolved169h 19mOct 6, 20251:55 PM UTCYesMinor

Scheduled maintenance

Planned work published by the official provider.

  1. ✓

    Scheduled Maintenance: Rostering Services

    Resolved

    The scheduled maintenance has been completed.

    Started Aug 17, 2025, 05:00 PM UTC · Resolved Aug 17, 2025, 06:00 PM UTC

  2. ✓

    Scheduled Maintenance: Ed Reports and Scores

    Resolved

    The scheduled maintenance has been completed.

    Started Aug 9, 2025, 01:00 AM UTC · Resolved Aug 10, 2025, 10:00 PM UTC

  3. ✓

    Scheduled Maintenance: Waggle

    Resolved

    The scheduled maintenance has been completed.

    Started Jul 23, 2025, 02:30 AM UTC · Resolved Jul 30, 2025, 07:30 AM UTC

  4. ✓

    Extended Maintenance: HMH Rostering July 15, 2025

    Resolved

    The scheduled maintenance has been completed.

    Started Jul 15, 2025, 04:07 PM UTC · Resolved Jul 16, 2025, 09:00 PM UTC

  5. ✓

    Scheduled Maintenance: ThinkCentral

    Resolved

    The scheduled maintenance has been completed.

    Started Jul 12, 2025, 09:12 PM UTC · Resolved Jul 13, 2025, 10:12 AM UTC

  6. ✓

    Scheduled Maintenance: Waggle

    Resolved

    The scheduled maintenance has been completed.

    Started May 10, 2025, 03:30 AM UTC · Resolved May 12, 2025, 11:00 AM UTC

  7. ✓

    Scheduled Maintenance: Read 180 with Foundational Skill

    Resolved

    The scheduled maintenance has been completed.

    Started Jan 24, 2025, 03:00 AM UTC · Resolved Jan 24, 2025, 04:00 AM UTC

  8. ✓

    Scheduled Maintenance: Ed Reports and Scores

    Resolved

    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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About Houghton Mifflin Harcourt monitoring on Uptimus

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.

How Uptimus monitors Houghton Mifflin Harcourt

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.

Maintenance notifications
Receive alerts when Houghton Mifflin Harcourt publishes planned, scheduled or active maintenance affecting the service. Uptimus has indexed 11 maintenance windows from the available Houghton Mifflin Harcourt history. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations.
Recovery notifications
Know when Houghton Mifflin Harcourt or an affected component returns to healthy operation after an issue or outage. The current page contains 1 days of known status history, while resolved events remain available for later review. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations.
Status messages
Uptimus stores the incident headline published by Houghton Mifflin Harcourt and presents it with the normalized service status. The available history contains 23 indexed incidents, giving each alert context beyond the current status. A recent indexed incident was “Ed Login Issue”.

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Comparison

Uptimus vs Downdetector for Houghton Mifflin Harcourt

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.

Uptimus vs Downdetector for Houghton Mifflin Harcourt
Comparison criteriaUptimusDowndetector
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: Sep 8, 3:45 PM UTC.

Status details
Incident and maintenance updates are preserved so you can follow investigations, mitigations and recovery progress. A recent official update preserved by Uptimus reads: “This incident has been resolved. We have not observed any further impact, and all services are operating as expected. We will continue to monitor to ensure ongoing stability.”.
Component status filtering
Choose all components or only the Houghton Mifflin Harcourt products you use. Official alerts then respect that component selection. Uptimus currently tracks 19 Houghton Mifflin Harcourt components: Login, Login, Login, Content and Resources. Filtering changes which official alerts are delivered; it does not remove the provider's events from the public history.
Included
Included
Adaptive baseline that separates isolated reports from wider disruptionIncludedIncluded
24-hour report activity and regional outage viewIncludedIncluded
One workspace for websites, provider status pages, Steam games and Android apps and gamesIncludedSeparate product
Email, push and webhook alerts from the same workspaceIncludedSeparate product
Official incident updates and status timeline for Houghton Mifflin HarcourtIncludedUser-report led
Component health and maintenance windows kept separateIncludedLimited on public pages
IncludedUser-report led · Limited on public pagesSeparate product

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