All services / Rankings
Most reliable Education services
Rolling window, updated hourly. Ranked by uptime from our own checks, then fewest outages, then least downtime. Methodology · JSON
Most reliable
- Blackboard · 100%
- Brightspace · 100%
- Chegg · 100%
- Clever · 100%
- Coursera · 100%
- Duolingo · 100%
- Federal Student Aid · 100%
- Google Classroom · 100%
- Infinite Campus · 100%
- Kahoot · 100%
Most outage-prone
No ranked service had a public outage or uptime under 99.5% in the last 5 days.
Full ranking (15)
| # | Service | Uptime | Outages | Total downtime | Median outage | User reports |
|---|---|---|---|---|---|---|
| 1 | Blackboard | 100% | 0 | — | — | 0 |
| 2 | Brightspace | 100% | 0 | — | — | 0 |
| 3 | Chegg | 100% | 0 | — | — | 0 |
| 4 | Clever | 100% | 0 | — | — | 0 |
| 5 | Coursera | 100% | 0 | — | — | 0 |
| 6 | Duolingo | 100% | 0 | — | — | 0 |
| 7 | Federal Student Aid | 100% | 0 | — | — | 0 |
| 8 | Google Classroom | 100% | 0 | — | — | 0 |
| 9 | Infinite Campus | 100% | 0 | — | — | 0 |
| 10 | Kahoot | 100% | 0 | — | — | 0 |
| 11 | Khan Academy | 100% | 0 | — | — | 0 |
| 12 | Quizlet | 100% | 0 | — | — | 0 |
| 13 | Canvas LMS | 99.69% | 1 | 18 min | 18 min | 0 |
| 14 | PowerSchool | 99.58% | 1 | 18 min | 18 min | 0 |
| 15 | Schoology | 99.58% | 1 | 18 min | 18 min | 0 |
Methodology
- Uptime: share of the covered time a service was up. Downtime is the time covered by our own failed HTTP checks (each failed check counts for one check interval; checks run from Cloudflare's network) merged with confirmed outages (below), even ones our checks missed. Overlapping periods are counted once. It measures reachability, not every feature.
- Outages: public outages in our outage log (outage level or worse for at least 10 minutes, or a major outage), excluding ones flagged as false positives. Outages are confirmed by the vendor's status page and/or user reports. Downtime is clipped to the period.
- User reports: problem reports submitted on this site during the period.
- Minimum data: a service is ranked only with checks on at least 60% of the days in the period (3 of 5) and at least 36 checks (about 12 a day). Services ranked with fewer than 50 checks a day are marked lower confidence (*); short outages between their checks are more likely to be missed. 1089 services were left out for too little data.
- Order: uptime (high to low), then fewer outages, less downtime, fewer reports. Month pages freeze on the 1st (UTC); the current month is live.