Essential Website Owner Networking Tools
Checks sender DNS health for rDNS/PTR, SPF, DMARC, DKIM, and BIMI. Failed checks show a red mark and a suggested fix.
Healthy sender DNS helps improve inbox placement and reduces authentication failures. This check reviews the core records mail providers expect from a trustworthy sending domain.
Enter a domain or IP address to create a shareable link that opens this page and runs its WHOIS lookup automatically. Add it to a forum post, support reply, or message so the recipient can view the same lookup in one click.