Developer Tools6 hours ago
SpamCrackers — Free SPF, DKIM & DMARC Checker & Email Signal Standard
Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X
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Grade a domain's email protection: check SPF, DKIM, DMARC, and MX records in your browser.
@domainfyrbrand · X
Find verified business opportunities with demand signals, competition analysis, and execution plans.
@businessHunter_ · X
Business Hunter scans Reddit, HN and GitHub for real demand signals → tells you exactly what to build before you write a line of code.
Verify AI agent decisions locally with transparent reasoning and MCP integration.
brandon_grutkowski · Product Hunt
Aurora Glass-box Quantitative AI for Humans and Agents