Free Tools
Powerful, free tools to analyze websites, check domain health, and supercharge your outreach campaigns.
Use the results
Turn a tool check into a concrete fix
Learn what the signals mean and what to change before your next outreach campaign.
GuideSet up SPF, DKIM, and DMARC for cold outreachUse the authentication checklist behind healthier sending domains.AnswerHow to diagnose cold-email deliverabilityCheck infrastructure and reputation before rewriting your campaign copy.GlossaryCold-email inbox placement testsLearn what an inbox placement test measures and how to interpret it.