---
title: "Every Inbox Rules Index measurement, as open data (CC-BY-4.0)"
method: GET
path: "/api/inbox-rules-index.json"
tags: ["Site"]
---

# Every Inbox Rules Index measurement, as open data (CC-BY-4.0)

`GET /api/inbox-rules-index.json`

## Request

- Base URL: `https://www.emailchaser.com`
- URL: `https://www.emailchaser.com/api/inbox-rules-index.json`
- Auth: none required

The DNS measurements behind /deliverability-news, /dmarc-adoption-rate and the tool pages: for each run, the share of a fixed panel of real business domains that enforce DMARC, publish strict SPF or MTA-STS, plus the mailbox-provider and security-gateway mix and the per-sector breakdown. Recipient domains, not Emailchaser sending data. The series has gaps; `note` states how many measurements exist.

## Response `200`

Every measurement, oldest first.

- object
  - `name` string
  - `license` string
  - `licenseUrl` string
  - `attribution` string
  - `note` string
  - `method` string
  - `firstDate` string, nullable
  - `latestDate` string, nullable
  - `measurements` object[]
    - `date` string
    - `panelSize` integer
    - `measured` integer
    - `dmarcEnforcedPct` number
    - `dmarcRejectPct` number
    - `dmarcNonePct` number
    - `dmarcMissingPct` number
    - `spfStrictPct` number
    - `spfMissingPct` number
    - `mtaStsPct` number
    - `counts` object
    - `providerMix` object[]
    - `sectors` object[]
    - `movers` object[]
    - `resolverFallbacks` integer, nullable

---

[API](https://skmtc.dev/emailchaser/apis/emailchaser-api.md) · [All operations](https://skmtc.dev/emailchaser/apis/emailchaser-api/llms.txt) · [OpenAPI document](https://skmtc.dev/emailchaser/apis/emailchaser-api/revisions/8b114990abb7?raw)