Outages and degradations can happen when underlying data isn’t fresh enough. In recent weeks, stale data may have contributed to incidents at both Slack and Cloudflare. 

Slack began experiencing issues when, by our best guess, its app stopped trusting the freshness of the data in the cache; and, separately, Cloudflare’s 1.1.1.1 DNS resolver ran into some issues related to stale root zone data.

Watch this Pulse Update episode to hear more about the Cloudflare and Slack outages, and also explore recent disruptions at Google.

For more insights, check out these links:

- Explore the Slack outage in the ThousandEyes platform (NO LOGIN REQUIRED): 
https://apiyhhcphzaowmpqpyxrtdgggadiiujg.share.thousandeyes.com

- Interested in more outage analysis? Check out our Internet Outages Timeline, which covers several notable Internet outages and application issues from the past year, along with the lessons they leave: https://www.thousandeyes.com/resources/internet-outages-timeline?utm_source=transistor&utm_medium=referral&utm_campaign=na_fy24q1_internetreportpulse21_podcast

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CHAPTERS
00:00 Intro
01:11 The Download
04:46 By the Numbers
09:30 Slack Outage: Cached Data Freshness Issues
23:08 Cloudflare Outage: Resolvers Use Stale Root Zone
29:55 Get in Touch

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Want to get in touch?

If you have questions, feedback, or guests you would like to see featured on the show, send us a note at [email protected]. Or follow us on X (formerly Twitter): @thousandeyes