Uptimeby GlyphTwilio SendGrid Mail Send API SLA
Twilio · Messaging · promises up to 99.99% · SLA of Apr 9, 2026 · checked 47d ago
No major outage in the 56 days of history: 100% observed against the 99.99% Email Deliverability / Experts / Program Management / Strategy Gold packages.
Last 90 days: no major outage.
Incidents, last 365 days
Major outage time per month
Allowed per month: 4.4 min
Commitments and credits
Standard
SendGrid Mail Send API
Credit: below 99.95%: 10%
Email Deliverability / Experts / Program Management / Strategy Gold packages
SendGrid Mail Send API in months those packages are purchased
Credit: below 99.99%: 10%
More in messaging
Apple publishes no SLA for it; its status page has no history this site can read.
Cloudflare promises 99.9% uptime, with a 10% credit when it misses; its status page showed no major outage in the 71 days on file.
Observed 100% over 365 days
Confluent promises 99.99% uptime, with a 10% credit when it misses; its status page showed no major outage in the last year.
Observed 100% over 365 days
Confluent promises 99.99% uptime, with a 10% credit when it misses; its status page showed no major outage in the last year.
Observed 100% over 365 days
Confluent promises 99.99% uptime, with a 5% credit when it misses; its status page showed no major outage in the last year.
Observed 100% over 365 days
Confluent promises 99.999% uptime, with a 10% credit when it misses; its status page showed no major outage in the last year.
Observed 100% over 365 days
Twilio promises 99.99% uptime, with a 10% credit when it misses; its status page showed no major outage in the 56 days on file.
Observed 100% over 365 days
Apple Push Notification service (APNs)Apple publishes no SLA for it; its status page has no history this site can read.NoneFirst creditn/aObserved 365dNo feed
Cloudflare QueuesCloudflare promises 99.9% uptime, with a 10% credit when it misses; its status page showed no major outage in the 71 days on file.99.9%First credit10%Observed 365d100%All incidents 99.951%
Confluent Cloud (Kafka clusters)Confluent promises 99.99% uptime, with a 10% credit when it misses; its status page showed no major outage in the last year.99.99%First credit10%Observed 365d100%All incidents 97.635%
Twilio APIs (Twilio-branded APIs)Twilio promises 99.99% uptime, with a 10% credit when it misses; its status page showed no major outage in the 56 days on file.99.99%First credit10%Observed 365d100%All incidents 99.615%
Terms, exclusions and sources
- Measured
- Same formula as Twilio APIs; plus a Successful Connection Rate commitment (15,000 req/s Americas, 10,000 req/s elsewhere) for premium email packages
- Credit cap
- Single 10% credit tier
- Claim window
- Within thirty (30) days from the last day of the calendar month
- How to claim
- Ticket via https://support.sendgrid.com with subject 'SLA Claim'
- Not covered
- Factors outside Twilio's reasonable control, incl. telecom provider/carrier issues; Customer or third-party action or inaction; Scheduled maintenance with at least 24 hours' notice; Emergency maintenance; Alpha, beta, preview or limited-release APIs; Less than five minutes of continuous unavailability
- Status history
- Status history since Sep 11, 2026
- Weighted uptime
- All incidents, weighted: 99.615% · Downtime
SendGrid Services API during the calendar months in which Customer has purchased the Email Deliverability, Email Experts as a Service, Email Program Management, Email Program Management and Strategy, or Email Strategy - Gold package 99.99%
Failure to hit the Successful Connection Rate also earns a 10% credit for the premium packages.