Twilio: Expiration of Let's Encrypt's DST Root CA X3 Certificate Causing Connectivity Issues Between Twilio and Applications That Were Dependant on Let's Encrypt's Services
Timeline of updates
- resolved
We have fully investigated the issue and it was determined that the issue was being caused due to the expiration of Let's Encrypt's DST Root CA X3 certificate. Customers will observe Error 11200 in the Twilio Console Debugger if they are impacted by this issue. Here is a link to the official documentation posted by Let's Encrypt: https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021 (opens in new tab)
From Twilio’s published incident history: for incidents before Rewindex began polling this status page, only the final update text is available.
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This incident predates live tracking (October 17, 2026). It came from the vendor’s own published history, which is not covered by checkpoints.
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Cite this
Status incident (vendor impact label: none) posted by Twilio, started 2021-09-30 01:49 UTC, resolved after 40 min, 1 update(s).
- Title
- Expiration of Let's Encrypt's DST Root CA X3 Certificate Causing Connectivity Issues Between Twilio and Applications That Were Dependant on Let's Encrypt's Services
- Vendor
- Twilio
- Date
- URL
- https://rewindex.com/company/twilio/incidents/bbxld6ywy802
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