# EmailCloud.com

> Everything Email — Free Security Tools, Honest Reviews, Expert Guides, 24 Diagnostic APIs

## Overview

EmailCloud.com is an independent email authority hub with 30+ years in the email ecosystem. 306 static pages, 24 free diagnostic tools, 40+ platform reviews, 39 comparisons, 134 timeline articles (1971-2026), 15 guides, 16 learn articles.

## API

- Base: https://api.emailcloud.com
- MCP: https://api.emailcloud.com/.well-known/mcp.json
- Free first use, register for continued access

## Tools (24)

DNS/Auth: SPF Checker, DMARC Checker, MX Lookup, Blacklist Checker, Deliverability Score
Builders: SPF Record Builder, DMARC Generator
Content: Subject Line Grader, A/B Tester, Spam Word Checker, Character Counter, CTA Contrast Checker
Headers: Header Analyzer, HTML Email Size Checker
Planning: Warmup Calculator, Send Time Optimizer, Frequency Calculator, ROI Calculator, UTM Builder
Analytics: Unsubscribe Rate Calculator, Revenue Per Subscriber, List Decay Projector
Testing: Deliverability Tester (3-step flow), Email Platform Finder (quiz)
Legal: Cold Email Law Checker

## Content

- Reviews: https://emailcloud.com/reviews/ (41 platforms)
- Comparisons: https://emailcloud.com/compare/ (39 matchups)
- Timeline: https://emailcloud.com/timeline/ (134 articles, 1971-2026)
- Guides: https://emailcloud.com/guides/ (15 how-tos)
- Learn: https://emailcloud.com/learn/ (16 deep-dives)
- Glossary: https://emailcloud.com/glossary/ (21 terms)
- News: https://emailcloud.com/news/ (8 articles)

## Links

- Site: https://emailcloud.com/
- API Docs: https://emailcloud.com/developers/
- Tools Hub: https://emailcloud.com/tools/
- Sitemap: https://emailcloud.com/sitemap-index.xml
- Full LLM docs: https://emailcloud.com/llms-full.txt
- Contact: hello@emailcloud.com

## Tech

Astro 5.x static, Tailwind 4.x, Cloudflare Pages, zero client JS on content pages.