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    Zybooks outage history

    52 recorded Zybooks incidents since March 2019, with official updates, affected components, duration and resolution information.

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    Partial Outage: IT Labs not loading for some users

    Started October 15, 2026 at 7:30 PM UTC · 4h 18m

    OutageMajor incident
    Affected components
    IT zyLabs system
    1. October 15, 2026 at 9:50 PM UTCinvestigating

      We are currently investigating this issue.

    2. October 15, 2026 at 11:40 PM UTCidentified

      The issue has been identified and a fix is being implemented.

    3. October 15, 2026 at 11:48 PM UTCresolved

      This incident has been resolved.

    Partial Outage: IT Labs not loading

    Started October 9, 2026 at 2:46 PM UTC · 28m

    OutageCritical incident
    Affected components
    IT zyLabs system
    1. October 9, 2026 at 2:46 PM UTCinvestigating

      We are currently investigating this issue.

    2. October 9, 2026 at 2:53 PM UTCidentified

      The issue has been identified and a fix is being implemented.

    3. October 9, 2026 at 2:53 PM UTCidentified

      Our engineers are actively investigating and have identified the cause.

    4. October 9, 2026 at 3:14 PM UTCresolved

      This incident has been resolved.

    Canvas downtime impacting score submissions

    Started May 7, 2026 at 9:05 PM UTC · 4d 18h

    IssuesMinor incident
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. May 7, 2026 at 10:29 PM UTCinvestigating

      Canvas appears to be down or undergoing maintenance, preventing zyBooks from sending assignment scores. Your work is still recorded in zyBooks. Once Canvas is back, scores can be sent by continuing the assignment or clicking “Submit score to LMS.” Please see Canvas's status page here: https://status.instructure.com/

    2. May 8, 2026 at 2:50 PM UTCmonitoring

      Canvas appears to be available for most users. Scores can be sent by continuing the assignment or clicking “Submit score to LMS.” Please see Canvas's status page here: https://status.instructure.com/

    3. May 12, 2026 at 3:13 PM UTCresolved

      Canvas has reported that they have resolved the issue. Scores can be sent by continuing the assignment or clicking “Submit score to LMS.” Please see Canvas's status page for more details: https://status.instructure.com/

    Partial Slowdown: Advanced zyLabs are not loading

    Started February 19, 2026 at 4:22 PM UTC · 23m

    OutageMajor incident
    Affected components
    Advanced zyLabs System
    1. February 19, 2026 at 4:22 PM UTCinvestigating

      Our team identified an issue with advanced zyLabs not loading. We are actively looking into a fix and hope to have this back up as soon as possible.

    2. February 19, 2026 at 4:22 PM UTCinvestigating

      We are continuing to investigate this issue.

    3. February 19, 2026 at 4:45 PM UTCresolved

      This incident has been resolved.

    3rd party tool (Cloudflare) affecting platform

    Started November 18, 2025 at 2:28 PM UTC · 34m

    OutageMajor incident
    Affected components
    learn.zybooks.com - zyBooks content and platformAdvanced zyLabs SystemClassic zyLabs and Programming Challenge ActivitieszyBooks.com - Home pagesExams assessment system
    1. November 18, 2025 at 2:28 PM UTCinvestigating

      One of the 3rd party tools, Cloudflare, is currently experiencing an outage. You can check their status page here: https://www.cloudflarestatus.com. While this issue persists, our platform may be unresponsive.

    2. November 18, 2025 at 3:01 PM UTCresolved

      This incident has been resolved.

    Score submission may be delayed due to a 3rd party issue. Student scores are being saved and will be able to be sent manually once the issue is resolved.

    Started October 20, 2025 at 5:29 PM UTC · 2d 1h

    Pending
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. October 20, 2025 at 5:29 PM UTCidentified

      The issue has been identified and a fix is being implemented.

    2. October 22, 2025 at 6:35 PM UTCresolved

      This incident is resolved. A number of our third-party partner's Learning Management Systems (LMS) were down following an outage of AWS region us-east-1. We saw issues with partners like Blackboard and Canvas either unable to, or in limited capacity, able to receive grade posts for assignment submissions. This event did not have any direct impacts on the zyBooks system or it's ability to record student scores. Students and instructors can use the manual grade push options if their score does not appear to be synced with the LMS. https://support.zybooks.com/hc/en-us/articles/360042745653-How-does-Assignment-auto-submission-work#01JNPQMHVK46ZP9NVE5HEFSTGG

    3rd party tool (Firebase) affecting Advanced Labs

    Started June 12, 2025 at 6:55 PM UTC · 1h 48m

    OutageMajor incident
    Affected components
    Advanced zyLabs System
    1. June 12, 2025 at 6:55 PM UTCinvestigating

      One of the 3rd party tools that our Advanced Labs platform relies on, Firebase, is currently experiencing an outage. You can check their status page here, https://status.firebase.google.com/. While this issue persists, Advanced zyLabs may fail to load intermittently.

    2. June 12, 2025 at 7:22 PM UTCinvestigating

      We are continuing to monitor this issue and will provide updates as they become available. This is a widespread issue with the Google Cloud platform, causing downtime for many applications across the web. https://status.cloud.google.com/

    3. June 12, 2025 at 8:43 PM UTCresolved

      This incident has been resolved.

    Site slowdown

    Started April 18, 2025 at 12:00 PM UTC · 0m

    Pending
    1. April 18, 2025 at 5:36 PM UTCresolved

      The zyBooks site was slow to load for a period of about 8 minutes.

    Site slowdown

    Started April 8, 2025 at 3:30 AM UTC · 0m

    IssuesMinor incident
    1. April 8, 2025 at 4:57 AM UTCresolved

      The zyBooks site was slow to load for a period of about 25 minutes.

    Reporting slowdown

    Started March 24, 2025 at 7:00 PM UTC · 1h 9m

    IssuesMinor incident
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. March 24, 2025 at 7:50 PM UTCinvestigating

      We are currently investigating an issue where some reports are slowing down including table of contents reports, assignments tab, student behavior insights, and zyLab similarity detection.

    2. March 24, 2025 at 8:09 PM UTCresolved

      This incident has been resolved.

    Reporting slowdown

    Started March 19, 2025 at 4:30 PM UTC · 0m

    IssuesMinor incident
    1. March 19, 2025 at 6:03 PM UTCresolved

      We investigated an issue where some reports were slowing down including table of contents reports, student behavior insights, and zyLab similarity detection.

    Reporting slowdown

    Started March 18, 2025 at 9:07 PM UTC · 1h 47m

    IssuesMinor incident
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. March 18, 2025 at 9:07 PM UTCinvestigating

      We are currently investigating an issue where some reports are slowing down including table of contents reports, student behavior insights, and zyLab similarity detection.

    2. March 18, 2025 at 10:54 PM UTCresolved

      This incident has been resolved.

    Canvas downtime impacting score submissions.

    Started February 7, 2025 at 2:19 AM UTC · 11h 36m

    IssuesMinor incident
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. February 7, 2025 at 2:19 AM UTCmonitoring

      Canvas systems are down, preventing zyBooks from sending assignment scores. Your work is still recorded in zyBooks. Once Canvas is back, scores can be sent by continuing the assignment or clicking “Submit score to LMS.”

    2. February 7, 2025 at 6:27 AM UTCmonitoring

      While Canvas systems are again operational (https://status.instructure.com), we have identified that a subset of our partner schools are still having issues sending assignment scores. We are in contact with Canvas technical support and working to remedy the situation. No issues recording assignment scores have been identified on the zyBooks side. Once sending of scores is restored, scores can be sent by continuing the assignment or clicking “Submit score to LMS” button.

    3. February 7, 2025 at 1:55 PM UTCresolved

      This incident has been resolved.

    Outage

    Started January 31, 2025 at 1:30 PM UTC · 0m

    OutageCritical incident
    1. January 31, 2025 at 3:49 PM UTCresolved

      Loss of access to all services.

    Classic zyLab incorrect grading

    Started April 22, 2024 at 5:00 PM UTC · 0m

    Pending
    1. April 23, 2024 at 4:35 PM UTCresolved

      Classic zyLabs with a large number of test cases experienced issues running all test cases.

    Slowdown

    Started April 22, 2024 at 2:20 PM UTC · 24m

    OutageCritical incident
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. April 22, 2024 at 2:36 PM UTCinvestigating

      We are currently investigating this issue.

    2. April 22, 2024 at 2:44 PM UTCresolved

      This incident has been resolved.

    site slowdown

    Started April 22, 2024 at 1:00 AM UTC · 0m

    Pending
    1. April 23, 2024 at 4:31 PM UTCresolved

      Activity auto-submission slowdown. LTI submission delayed.

    Site slowdown (5 mins from 8:45am - 8:50am Pacific)

    Started January 30, 2024 at 5:03 PM UTC · 0m

    Pending
    Affected components
    learn.zybooks.com - zyBooks content and platform
    1. January 30, 2024 at 5:03 PM UTCresolved

      This incident has been resolved.

    Activity recording issue

    Started December 3, 2023 at 3:30 AM UTC · 0m

    IssuesMinor incident
    1. December 6, 2023 at 4:36 PM UTCresolved

      Students saw a red banner indicating that activity recording may be impacted from 7:30 pm Pacific to 11:30 pm.

    zyBooks Slowdown

    Started September 19, 2023 at 12:49 AM UTC · 3h 11m

    OutageMajor incident
    Affected components
    learn.zybooks.com - zyBooks content and platformAdvanced zyLabs SystemClassic zyLabs and Programming Challenge ActivitiesExams assessment system
    1. September 19, 2023 at 12:49 AM UTCinvestigating

      We are currently investigating this issue.

    2. September 19, 2023 at 1:37 PM UTCresolved

      This incident has been resolved.