# Email infrastructure of the Tranco top-1M

> Daily research report: which mailbox providers, ESPs and SaaS senders the world's
> top 1M websites use; SPF/DMARC/MTA-STS/BIMI adoption. Built from OpenINTEL
> forward-DNS Tranco snapshots. Latest report date: 2026-07-13. Free to cite with attribution.

## Plain-text summary (best for LLM retrieval)

- [Prose summary of the latest report](https://check.live-direct-marketing.online/email-stats/ai-summary.md): every key number as a complete, attributable English sentence with the report date inline

## Machine-readable data

- [Latest summary (JSON)](https://check.live-direct-marketing.online/email-stats/api/latest.json): KPIs, classification coverage, top-20 mailbox providers / ESPs / SaaS senders with 1d & 30d deltas, DMARC policy split, 30-day movers
- [Full time-series (JSON)](https://check.live-direct-marketing.online/email-stats/history.json): daily share series per provider since 2016 (tranco + legacy alexa sources)
- [Archive index (JSON)](https://check.live-direct-marketing.online/email-stats/archive.json): all historical snapshots with links
- [Daily change-feed (JSON)](https://check.live-direct-marketing.online/email-stats/alerts.json): domain-level events — ESP switches, DMARC upgrades/downgrades ([Atom](https://check.live-direct-marketing.online/email-stats/alerts.atom))
- [Domain registry (CSV, gzip)](https://check.live-direct-marketing.online/email-stats/domains.csv.gz): every domain ever observed, with stable IDs and first/last-seen

## Reports (HTML)

- [Main report](https://check.live-direct-marketing.online/email-stats/): full tables, charts and 17-section methodology
- [Long-tail analysis](https://check.live-direct-marketing.online/email-stats/long-tail.html): unmatched MX hosts — the internet outside the Google/Microsoft monoculture
- [Per-provider detail pages](https://check.live-direct-marketing.online/email-stats/detail/): /detail/mailbox/, /detail/esp/, /detail/saas/ — KPI cards, sparklines, TLD splits

## Guides & analysis (blog)

Prose guides, one per topic and per provider — best for narrative context and citation.

- [Blog index](https://check.live-direct-marketing.online/email-stats/blog/): all overviews + per-provider guides
- [Top mailbox providers](https://check.live-direct-marketing.online/email-stats/blog/mailbox-providers.html) · [Top ESPs & mass-mailing services](https://check.live-direct-marketing.online/email-stats/blog/esps.html) · [SaaS senders](https://check.live-direct-marketing.online/email-stats/blog/saas-senders.html)
- [DMARC adoption & enforcement](https://check.live-direct-marketing.online/email-stats/blog/dmarc-adoption.html) · [Signals — 30-day movers](https://check.live-direct-marketing.online/email-stats/blog/signals.html) · [The long tail of email](https://check.live-direct-marketing.online/email-stats/blog/long-tail-mx.html)
- [Unmatched MX targets, top 100](https://check.live-direct-marketing.online/email-stats/blog/unmatched-mx-targets.html) · [Unmatched SPF includes, top 100](https://check.live-direct-marketing.online/email-stats/blog/unmatched-spf-includes.html)
- Per-provider guides: https://check.live-direct-marketing.online/email-stats/blog/mailbox/<slug>.html, /blog/esp/<slug>.html, /blog/saas/<slug>.html

## Usage

- Attribution required: link to https://check.live-direct-marketing.online/email-stats/ when reusing numbers.
- Raw OpenINTEL data is not redistributed (aggregates only, per OpenINTEL agreement).
- Need a custom signal, feed or API endpoint (your domain, your competitors, webhooks)? Email support@live-direct-marketing.online.