Which email platform does your competitor use?
Enter a domain, we read the public DNS records and name the sending service with proof. You also see how well SPF, DKIM, DMARC and BIMI are set up.
The domain goes to a public DNS service (Cloudflare, Google as fallback); everything else stays in your browser. We store nothing.
How it works
Three steps to the sending service.
- 01
Enter a domain
Shop address, website or the sender address from a newsletter. The sender address is the most precise, because brands often send from a subdomain.
- 02
Let us read the DNS
We check the domain and typical sending subdomains such as news., mail. or newsletter. for SPF, MX, NS, CNAME and DKIM.
- 03
Read the result
You see every service we found with the record that proves it, plus a traffic light for deliverability.
Frequently asked questions
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And what are your competitors sending?
Reyo reads your competitors’ newsletters, push notifications, Meta ads and websites and tells you what to do about them.