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Outage tracker

Resend: the full evidence record

The last 24 hours in detail, 15 days of measured availability, a 12-month summary, our own incident log, Resend's declared record, and how the two compare.

← Back to Resend's live status

We started measuring Resend on August 22, 2026, which is 15 days ago. Everything below covers that period, not the full 90 days a longer-tracked service would show.

The last 24 hours

What happened most recently, on one time axis: our own probe readings by surface, how many people reported a problem, and what Resend's own status page declared. Below it, any public chatter we saw about Resend and the extra probe it triggered.

The last 24 hours on one axis: what our probes read for each surface we check, how many people reported a problem, and what Resend's own status page declared. Three records side by side; none of them changes another.

Our probes, web
Our probes, api (primary)
Unverified user reportsNo reports about Resend in the last 24 hours, which is not evidence that nothing is wrong.
Resend's status page
  1. Delays in background processes are affecting webhooks, domain verifications, and other important features: minor incident, from 19:00 UTC to 19:45 UTC.

Each probe cell is the worst reading across every region in that quarter hour: one region that did not answer colours the cell, never an average. An amber cell is a reading that answered, but at three times or more its 7-day median for three checks running: slow is not down, and we say which. A filtered reading stays neutral, because a refused probe is not an outage. Report bars count unverified reports, not people we verified; they never change our reading. The status-page lane is Resend's own declaration, shown as they made it.

Third-party chatter, labeled

Public posts from the last hour that mention Resend next to an outage word (“down”, “outage”, “not working”). This is what other people said in public, collected by keyword: not something we measured, and not the user reports above. It never affects the verdict.

No matching public posts in the last hour from the sources we watch.

  • Confirmation probe19:08 UTC, Southeast Asia: a new incident on their status page prompted an extra probe. Result: Resend answered normally.
  • Confirmation probe19:08 UTC, Asia-Pacific: a new incident on their status page prompted an extra probe. Result: Resend answered normally.
  • Confirmation probe19:08 UTC, Europe: a new incident on their status page prompted an extra probe. Result: Resend answered normally.
  • Confirmation probe19:07 UTC, Australia: a new incident on their status page prompted an extra probe. Result: Resend answered normally.
  • Confirmation probe19:07 UTC, South America: a new incident on their status page prompted an extra probe. Result: Resend answered normally.

Availability by region

Availability is measured probes that succeeded, divided by every probe we attempted, per region. Not interpolated, not smoothed, and never computed for a region with zero recorded samples.

RegionAvailabilityProbes recorded
US-East100.00%1843
US-West100.00%1834
Europe100.00%1762
Asia-Pacific100.00%1555
US-Central100.00%176
Canada100.00%176
UK100.00%175
Southeast Asia100.00%143
Australia100.00%141
South America100.00%166

Monthly summary

Tracking Resend since Aug 22, 2026. In that time our probes detected no outage. Months before that date are not tracked and carry no figure.

MonthUptimeOutagesDowntime
Oct 2025not tracked
Nov 2025not tracked
Dec 2025not tracked
Jan 2026not tracked
Feb 2026not tracked
Mar 2026not tracked
Apr 2026not tracked
May 2026not tracked
Jun 2026not tracked
Jul 2026not tracked
Aug 2026 from Aug 22, 2026100%00 min
Sep 2026100%00 min

Uptime here is the share of each month in which our probes had no outage open for Resend: two consecutive failed readings from a region opens one, the first clean reading closes it. Any detected outage counts, including one seen from a single region, and an outage that crosses midnight on the first of a month is counted in both months with its minutes split. User reports, public posts and Resend's own status page contribute nothing to these figures.

Our incident log

Every outage our own probes detected for Resend in the last 90 days, or since we started measuring it if that is more recent. This list is probe-only: Resend's own declared incidents appear further down this page in their own attributed section, never merged with what we measured here. User reports live on the live page, in their own labeled block.

No outages detected for Resend since we started measuring it on August 22, 2026. We show nothing from before that date.

Their declared record

Resend's own incident history, taken from their public status feed. This is their account of what happened, not our measurement, and it never changes the incident log above or the other way around.

Delays in background processes are affecting webhooks, domain verifications, and other important featuresMinor incident
Sep 4, 2026, 7:02 PM UTC to Sep 4, 2026, 7:34 PM UTC (32 min)resolved
their latest update (Sep 4, 2026, 7:34 PM UTC): We have resolved the underlying issue and service has been resumed.
Delay in contact webhooks deliveryMinor incident
Sep 3, 2026, 10:05 AM UTC to Sep 3, 2026, 10:45 AM UTC (39 min)resolved
their latest update (Sep 3, 2026, 10:45 AM UTC): We have resolved the underlying issue and service has been resumed.
Increased latency across API endpointsMinor incident
Aug 20, 2026, 4:58 AM UTC to Aug 20, 2026, 5:22 AM UTC (24 min)resolved
their latest update (Aug 20, 2026, 5:22 AM UTC): We have resolved the underlying issue and service latency has been recovered.
Contact webhook events are delayed in deliveryMinor incident
Aug 18, 2026, 7:53 PM UTC to Aug 19, 2026, 10:01 AM UTC (14h 9m)resolved
their latest update (Aug 19, 2026, 10:01 AM UTC): We have resolved the underlying issue and service has been resumed.
API instabilityMinor incident
Aug 16, 2026, 1:17 PM UTC to Aug 16, 2026, 12:57 PM UTC (0 min)resolved
their latest update (Aug 16, 2026, 12:57 PM UTC): API became unstable from 12:54 to 12:57 UTC, returning 5xx for approximately 7% of the requests. We have resolved the underlying issue and service has been resumed.
Errors during the domain creation processPartial outage
Aug 13, 2026, 6:03 PM UTC to Aug 13, 2026, 5:43 PM UTC (0 min)resolved
their latest update (Aug 13, 2026, 5:43 PM UTC): Between approximately 17:30 and 17:43 UTC, requests to add a new domain failed in the dashboard and through the public API (POST /domains). Verification of domains added during this window was also affected. The issue was identified and fixed, and domain creation has returned to …
Delayed contact webhook eventsAll systems operational
Aug 9, 2026, 6:44 PM UTC to Aug 9, 2026, 7:22 PM UTC (38 min)resolved
their latest update (Aug 9, 2026, 7:22 PM UTC): We have resolved the underlying issue and service has been resumed.
Increased API and SMTP Error RatesPartial outage
Aug 8, 2026, 9:46 PM UTC to Aug 8, 2026, 10:29 PM UTC (43 min)resolved
their latest update (Aug 8, 2026, 10:29 PM UTC): Our team has mitigated the issue and this incident is fully resolved. All services are operational.
Delayed contact related webhook eventsMinor incident
Aug 7, 2026, 3:19 PM UTC to Aug 7, 2026, 3:43 PM UTC (24 min)resolved
their latest update (Aug 7, 2026, 3:43 PM UTC): We have resolved the underlying issue and service has been resumed.
Contact webhook delivery backlogMinor incident
Aug 4, 2026, 6:45 PM UTC to Aug 1, 2026, 12:00 AM UTC (0 min)resolved
their latest update (Aug 1, 2026, 12:00 AM UTC): The backlog is gone, and all delayed contact webhooks have been delivered. Delivery latency has now recovered. The new infrastructure configurations prevent this same issue from happening again.

Showing the 10 most recent of 27 incidents Resend has declared in the history we hold.

These entries are Resend's own declarations, taken from their public status feed, shown separately from the outages we detected ourselves. Their page publishes what they choose to publish: an incident missing here means they did not declare one, not that nothing happened, and an incident here is their account, not our measurement. Neither record ever changes the other.

The scorecard

How Resend's status page compared with what we measured, for every outage above that falls inside the window we have been capturing their claims.

We started recording Resend's own status page on August 22, 2026, 13 days ago. This comparison covers that period only, we do not reconstruct what they said before it, and we compare only inside outages we measured ourselves.

We have not measured an outage for Resend since we started recording their status page, so there is nothing to compare. That is a short measurement window, not a track record.

Resend decides what their status page covers, and it may report per component while our check reaches one surface from ten regions. We state what each side measured and leave the conclusion to you. If Resend believes a figure here is wrong, we publish corrections as prominently as the original.

Full detail on what a probe does and does not prove is in the methodology page.