Domain Lookup Toolbox

These connections help security professionals profile attackers guide online fraud investigations and map cyber activity to attacker infrastructure.

Domain lookup toolbox. You can click diagnostics which will connect to the mail server verify reverse dns records perform a simple open relay check and measure. Learn how domaintools takes indicators from your network including domains and ips and connects them with nearly every active domain on the internet. In some cases you will be able to go the registrar s site to get more information.

And you ll have a chronological history of your results. This test will list mx records for a domain in priority order. Input a domain name or ip address or host name.

Links in the results will guide you to other relevant tools and information. This test will return whois registration results for a domain name. Monitor an entire subnet.

This can help provide insight into a domain s history and additional information. Browserinfo check mx dig har analyzer log analyzer log analyzer 2 messageheader additional tools encode decode. View your full deliverability report.

The mx lookup is done directly against the domain s authoritative name server so changes to mx records should show up instantly. Our whois lookup is designed to help you perform a variety of whois lookup functions. Extract emails from any text.

Similar to how all houses are registered with a governing authority all domain name registries maintain a record of information about every domain name purchased through them along with who owns it and the date till which it has been purchased. Depending on the registrar you can see various information like who is it registered to when it was registered and when it expires where the dns is hosted and more.