Is your domain correctly configured?
Six checks decide whether your domain behaves like an established company: its resolution, its mail setup, and above all its protection against spoofing. A domain without SPF and DMARC sees its messages filed as spam and its name spoofed unhindered.
Free, no account, no daily limitFree tool, no signup and no daily limit, published by LANXAS, a French artificial intelligence company. Servers are located in France and no analysis data is retained.
Why email setup matters for visibility
A domain with no mail server and no anti-spoofing protection looks, to an automated system, like a throwaway domain. That weighs on the trust granted to your brand, on the deliverability of your campaigns, and on the credibility of your commercial exchanges.
Concretely: without SPF, anyone can send a message that appears to come from your address. Without DMARC, you are never told about those spoofs and have no way to request their rejection.
The records to publish
| Record | Purpose | Difficulty |
|---|---|---|
| A and AAAA | Point your domain name to your server. | Already set if your site works |
| MX | Designate the server receiving your email. | Provided by your mail host |
| SPF | Lists servers allowed to send on your behalf. | One text line to add |
| DMARC | Defines what to do with non-compliant mail and reports it to you. | One text line, start in observation mode |
| NS | Name servers, at least two for resilience. | Provided by your registrar |
Frequently asked questions
How do I add an SPF record?
Which DMARC policy should I start with?
Does DNS directly affect my ranking?
Where does the data come from?
Every tool in a single application
These tools are part of LANXAS SEO GEO, a complete application bringing together technical audit, keyword research, AI visibility, prospecting and PDF reports. Access is free.
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