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Get statistics by sending domain

GET
/v1/email/stats/sending-domains
const { data } = await bird.email.stats.bySendingDomain({
  from: "2026-05-01",
  to: "2026-05-31",
  sort: "delivery_rate",
  limit: 25,
});
for (const row of data) console.log(row.sending_domain, row.delivery.delivery_rate);
响应200
{
  "period": {
    "from": "2026-05-01",
    "to": "2026-05-25",
    "data_as_of": "2026-05-25T14:03:10Z"
  },
  "data": [
    {
      "sending_domain": "mail.acme.com",
      "delivery": {
        "accepted": 14820,
        "processed": 14810,
        "delivered": 14720,
        "bounced": 90,
        "bounces": {
          "hard": 12410,
          "soft": 14290,
          "admin": 410,
          "block": 920,
          "undetermined": 80,
          "hard_rate": 0.454,
          "soft_rate": 0.523,
          "admin_rate": 0.015,
          "block_rate": 0.0337,
          "undetermined_rate": 0.0029
        },
        "complained": 3,
        "deferred": 14,
        "rejected": 10,
        "oob_bounces": 2,
        "effective_delivered": 14718,
        "all_bounces": 92,
        "oob_rate": 0.00014,
        "delivery_rate": 0.9939,
        "bounce_rate": 0.0061,
        "complaint_rate": 0.0002
      },
      "engagement": {
        "opens": 5420,
        "opens_non_prefetched": 3210,
        "unique_opens": 3640,
        "unique_opens_non_prefetched": 2480,
        "clicks": 924,
        "unique_clicks": 621,
        "unsubscribes": 12,
        "open_rate": 0.1683,
        "click_rate": 0.0422,
        "unsubscribe_rate": 0.0009
      },
      "latency": {
        "processing": {
          "p50_ms": 420,
          "p95_ms": 1820,
          "p99_ms": 4920
        },
        "delivery": {
          "p50_ms": 420,
          "p95_ms": 1820,
          "p99_ms": 4920
        },
        "total": {
          "p50_ms": 420,
          "p95_ms": 1820,
          "p99_ms": 4920
        }
      },
      "trend": [
        {
          "bucket": "2026-05-12"
        }
      ]
    }
  ],
  "total": 12,
  "next_cursor": "eyJ2IjoxLCJzIjoiXCIyMDI2LTA1LTI1VDE0OjAzOjEwWlwiIiwiaSI6IjAxOTJmM2IxLTRjN2UtN2EyYi05ZDYxLThmM2E1YzJlN2I0MCJ9",
  "prev_cursor": null,
  "refresh_cursor": "eyJ2IjoxLCJzIjoiXCIyMDI2LTA1LTI1VDE2OjQyOjAxWlwiIiwiaSI6IjAxOTJmM2IxLTllMDQtN2NkMy1iODE3LTJhNmY0ZDFjOGUwOSJ9"
}

Returns delivery, engagement, and deliverability counts for the requested period, grouped by sending domain: the portion of the From address after the @. Use it to compare deliverability across multiple verified domains in your workspace, for example transactional versus marketing domains, or sub-domain segregation during IP warming.

Rows are computed against event time rather than send time, so engagement and bounces received during the period count even for messages that were sent earlier.

Rows are ranked by the sort metric, processed by default, and paginated with the requested limit (50 by default, 200 at most). The window can span at most 365 days. Ask for more and you get a 422.

查询参数

starting_afterstring

Cursor from the next_cursor field of a previous list response. Returns items immediately after the cursor position in the current sort order.

ending_beforestring

Cursor from the prev_cursor or refresh_cursor field of a previous list response. Returns items immediately before the cursor position in the current sort order. prev_cursor returns the preceding page. refresh_cursor anchors at the first row of that response, which on a newest-first sort is how to fetch the items that have appeared since.

fromstring

Start date (inclusive) in YYYY-MM-DD, interpreted as a calendar day in timezone (a UTC day when timezone is omitted). It defaults to 30 days before to when you leave it out. When include_trend=true and trend_grain=hourly, that default tightens to 29 days before to instead, so the defaulted window still fits inside the 720-hour trend cap.

tostring

End date (inclusive) in YYYY-MM-DD, interpreted as a calendar day in timezone (a UTC day when timezone is omitted). Defaults to today in that timezone when omitted. Window may not exceed 365 days.

timezonestring

IANA timezone identifier used to group statistics, for example Asia/Kathmandu. The default is UTC. Day and hour boundaries, including the default window when from and to are omitted, follow this timezone. When this parameter is set, pass from and to as calendar days or Z instants instead of timestamps with explicit UTC offsets.

categorystring

Not supported on breakdown endpoints. Supplying it returns 422. To compare categories, use GET /v1/email/stats/categories. The summary, daily, and hourly statistics accept category as a filter.

sortstring

Metric to rank rows by, applied descending. Any count or rate in the response can be used. A row whose rate is undefined because its denominator is zero sorts last. It defaults to processed.

Possible values: processed, delivered, bounced, complained, deferred, rejected, oob_bounces, bounces.hard, bounces.soft, bounces.admin, bounces.block, bounces.undetermined, opens, opens_non_prefetched, unique_opens, unique_opens_non_prefetched, clicks, unique_clicks, unsubscribes, delivery_rate, bounce_rate, complaint_rate, open_rate, click_rate, unsubscribe_rate, bounces.hard_rate, bounces.soft_rate, bounces.admin_rate, bounces.block_rate, bounces.undetermined_rate

limitinteger

Maximum number of domain rows to return, ranked by the sort field descending.

include_trendboolean

When true, each row also gets a trend array: a short per-bucket series showing that domain's delivery and engagement rates over the window. This only works when limit is 50 or fewer and the window is at most 90 days for trend_grain=daily or 720 hours for trend_grain=hourly. Ask for more and you get a 422. When you leave from out and use trend_grain=hourly, the default window tightens to 29 days before to (720 hours total), so a request built entirely from defaults always fits inside the cap.

trend_grainstring

Bucket grain for the trend series. Has no effect unless include_trend=true.

Possible values: daily, hourly

响应载荷

period
object
必填

The date range the response covers (echoed back from the request), plus data_as_of, the freshness boundary the data is current to.

显示子属性
period.from
string
必填

Inclusive start date the response covers (YYYY-MM-DD).

period.to
string
必填

Inclusive end date the response covers (YYYY-MM-DD).

period.data_as_of
nullable string

The instant the statistics in this response are current to: events recorded up to roughly this time are reflected, while more recent events may not be yet. Statistics are served from a rolling aggregation that refreshes every few seconds, so a response reflects data from up to a few seconds ago. Use this field to label data freshness (for example "as of 14:03") rather than assuming the numbers are to-the-second. Null when the freshness boundary is not being reported.

data
array of object
必填

Sending-domain breakdown rows, ranked by the sort metric (default processed) descending. Empty when no eligible activity occurred in the period.

显示子属性
total
integer
必填

Total number of distinct sending domains with activity in the period, regardless of limit. Pass next_cursor as starting_after to request the next page.

next_cursor
nullable string
必填

Cursor for the next page. Pass back as starting_after to advance forward. null when no next page exists.

prev_cursor
nullable string
必填

Cursor for the previous page. Pass back as ending_before to step backward. null when no previous page exists.

refresh_cursor
nullable string
必填

Refresh anchor, the first row of this response. Pass back as ending_before to fetch what precedes it in the current sort order. On a newest-first sort those are the items that have appeared since; on any other sort they are the items that sort earlier, so refreshing such a list means re-fetching it instead. Non-null whenever data is non-empty; null only on an empty page. Distinct from prev_cursor.

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