Free DNS & Email Checker: Test MX, SPF, DKIM and DMARC
Inspect DNS and business-email configuration including MX, SPF, DMARC and DKIM. This guide explains how to use the free tool and understand the result.
Inspect DNS and business-email configuration including MX, SPF, DMARC and DKIM. This guide explains how to use the free tool and understand the result.
Inspect a public IP address with reverse DNS, ASN/network registration and approximate geolocation details. This guide explains how to use the free tool and understand the result.
Run quick DNS and safe public-network connectivity checks from one page. This guide explains how to use the free tool and understand the result.
Measure ping, jitter, sustained download speed and sustained upload speed, with a 1 GB download-time estimate. This guide explains how to use the free tool and understand the result.
Check website availability, HTTPS, response time, basic SEO signals, robots/sitemap presence and common configuration issues. This guide explains how to use the free tool and understand the result.
Run a non-invasive website security posture check covering TLS, security headers and selected email-security controls. This guide explains how to use the free tool and understand the result.
Show your public IPv4, public IPv6, local/LAN address when exposed by the browser, and approximate IP-based location. This guide explains how to use the free tool and understand the result.