Illustrative Mathematics Outage History
Illustrative Mathematics is up right nowPingoru has recorded 16 incidents for Illustrative Mathematics: 3 in the last 12 months and 0 in the last 90 days.
Show as a table
| Month | Incidents | Hours with an open incident |
|---|---|---|
| April 2026 | 0 | 0 of 720 (0%) |
| May 2026 | 0 | 0 of 744 (0%) |
| June 2026 | 1 | 1 of 720 (0%) |
| July 2026 | 0 | 0 of 744 (0%) |
| August 2026 | 0 | 0 of 744 (0%) |
| September 2026 | 0 | 0 of 720 (0%) |
| October 2026 | 0 | 0 of 513 (0%) |
Incidents, newest first
Major June 23, 2026 User Login and Registration Outage for AccessIM and Kendall Hunt 30m Kendall Hunt, FusionAuth, AccessIM, IM360 site
Started Jun 23, 2026, 11:45 AM UTC· resolved Jun 23, 2026, 12:15 PM UTC
- investigating Jun 23, 2026, 11:45 AM UTC
We are currently investigating this issue. We suspect it may be related to an outage for our login service provider, which means the resolution may not be in our direct control. We'll keep this incident updated with any progress or status changes.
- investigating Jun 23, 2026, 11:46 AM UTC
We are continuing to investigate this issue.
- resolved Jun 23, 2026, 12:15 PM UTC
This incident has been resolved. We will continue monitoring the status of our external provider and communicate further if necessary.
Minor October 28, 2025 PostHog feature flag api errors impacting on accessim.org 18h 9m AccessIM
Started Oct 28, 2025, 08:06 PM UTC· resolved Oct 29, 2025, 02:15 PM UTC
- investigating Oct 28, 2025, 08:06 PM UTC
PostHog feature flag api errors are making some features on accessim.org inaccessible. This includes features like math tools that only show up if the relevant feature flag is set to true. Since the app can't get the result of the feature flag, it defaults to false, thus hiding the feature. Engineering is monitoring PostHog status updates, and will update when we have more information.
- monitoring Oct 28, 2025, 10:01 PM UTC
PostHog has released a fix and they are monitoring the results. Some functionality may return to accessim.org. We will update when PostHog confirms they've resolved the issue on their end, and we will confirm things should be working on ours.
- resolved Oct 29, 2025, 02:15 PM UTC
The issue with PostHog has been resolved.
Notice October 27, 2025 Cloudflare blocking users on illustrativemathematics.org and illustrativemathematics.blog intermittently 15h 53m IM Website, IM Blog
Started Oct 27, 2025, 10:20 PM UTC· resolved Oct 28, 2025, 02:14 PM UTC
- investigating Oct 27, 2025, 10:20 PM UTC
We are currently investigating this issue.
- investigating Oct 27, 2025, 10:21 PM UTC
We are aware the users are experiencing intermittent issues accessing the site due to a CloudFlare block warning. We are investigating and recommend that users re-try the site if they receive the error or clear their cache if the issues persists for them.
- investigating Oct 27, 2025, 10:39 PM UTC
Update: the issue lies with a 3rd party service and we are awaiting for their teams to address the issue. Engineering is monitoring status updates and will notify the organization once we have more information.
- resolved Oct 28, 2025, 02:14 PM UTC
Resolved: last night, the web hosting company for illustrativemathematics.org and illustrativemathematics.blog resolved an issue with their security feature that was preventing users from accessing those websites.
Minor April 28, 2025 Degraded Performance on AccessIM 2h 15m AccessIM
Started Apr 28, 2025, 07:36 PM UTC· resolved Apr 28, 2025, 09:51 PM UTC
- investigating Apr 28, 2025, 07:36 PM UTC
Some users are experiencing errors when using AccessIM. Our engineering team is investigating
- investigating Apr 28, 2025, 09:47 PM UTC
The issue is resolved. We tracked the error to an issue with a third party provider that manages the cookie consent banner functionality on AccessIM and we have temporarily disabled the cookie consent banner in response.
- resolved Apr 28, 2025, 09:51 PM UTC
This incident has been resolved.