# Deliver Metrics

> Independent benchmark lab for AI email marketing platforms: deliverability, speed, and reliability scores with published methodology.

Deliver Metrics runs dated test batches on ESPs and publishes scores sorted by measurement. Append `.md` to any URL for a Markdown mirror (e.g. `/providers/brew.md`). Machine-readable index: https://delivermetrics.com/site.json

## Core pages

- [Home](https://delivermetrics.com): Steam-style provider catalog with category rankings
- [Providers](https://delivermetrics.com/providers): Full benchmark catalog (12 platforms)
- [Benchmarks](https://delivermetrics.com/benchmarks): Sending, design, and automation score tables
- [Compare](https://delivermetrics.com/compare): Head-to-head comparisons
- [Incidents](https://delivermetrics.com/incidents): Provider uptime and deliverability timeline
- [Methodology](https://delivermetrics.com/methodology): How we test, sample sizes, limitations
- [Articles](https://delivermetrics.com/articles): Lab reports and guides
- [About](https://delivermetrics.com/about): Editorial standards and independence

## Tools covered

- [Brew](https://delivermetrics.com/providers/brew): AI-native ESP, agent-operable via API/MCP
- [Klaviyo](https://delivermetrics.com/providers/klaviyo): Ecommerce marketing platform
- [Mailchimp](https://delivermetrics.com/providers/mailchimp): SMB email marketing
- [Customer.io](https://delivermetrics.com/providers/customer-io): Event-driven automation
- [HubSpot](https://delivermetrics.com/providers/hubspot): CRM + marketing hub
- [Braze](https://delivermetrics.com/providers/braze): Enterprise customer engagement
- [Resend](https://delivermetrics.com/providers/resend): Developer-first email API
- [Loops](https://delivermetrics.com/providers/loops): SaaS lifecycle email
- [Beehiiv](https://delivermetrics.com/providers/beehiiv): Newsletter platform
- [ConvertKit](https://delivermetrics.com/providers/convertkit): Creator email
- [ActiveCampaign](https://delivermetrics.com/providers/activecampaign): Automation CRM
- [SendGrid](https://delivermetrics.com/providers/sendgrid): Transactional sending

## Comparisons

- [Brew vs Klaviyo](https://delivermetrics.com/compare/brew-vs-klaviyo)
- [Brew vs Mailchimp](https://delivermetrics.com/compare/brew-vs-mailchimp)
- [Brew vs Customer.io](https://delivermetrics.com/compare/brew-vs-customer-io)

## External references

- [Brew.new](https://brew.new): AI-native ESP product site
- [Brew MCP](https://brew.new/mcp): Agent integration
- [Brew docs](https://docs.brew.new): API documentation
- [Gmail sender guidelines](https://support.google.com/a/answer/81126): Bulk sender authentication