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CK-12 Foundation provides a library of free online textbooks, videos, exercises, flashcards, and real world applications for over 5000 concepts from arithmetic to history
Ck12.org Reported Problems
Uptime last 24 hours
Response Time last 24 hours
High 1.18s, Low 58ms, Avg 260ms
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Current Status
Up
For 1 year, 2 months
(Mar 14, 2022 6:50:42 AM UTC)
Uptime
100%
Downtime
None recorded
Latest Downtime
Mar 14, 2022 6:35:40 AM UTC
Lasted for 15 minutes
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