Free tools

Are your emails going to spam?

Check in a few seconds whether your email is properly secured (SPF, DKIM and DMARC), whether your website is set up securely and whether your domain name is in order.

Free. We only read public DNS data and headers; we don’t send any emails.

What we check

Three DNS records determine whether your emails arrive. They’re free to set up, but often forgotten.

SPF
A list of servers allowed to send email on behalf of your domain. Without SPF, your email is treated with suspicion.
DKIM
A digital signature on every email, so recipients can see nobody has tampered with it.
DMARC
Tells recipients what to do with email that fails SPF or DKIM. Gmail, Yahoo and Microsoft require it from bulk senders.
HTTPS and headers
A valid certificate and the right security headers protect your visitors and your reputation with Google.