SSL certificate checker
Check who issued a domain's certificate and how long until it expires — an expired one breaks tracking links and your website.
Why SSL matters for email
Click and open tracking run through your domain. If its certificate is expired or invalid, recipients see a security warning when they click a link, and some filters treat the email as suspicious.
Expiring soon?
Renew through your hosting provider or certificate authority, or turn on automatic renewal so it never lapses.
More free tools
SPF checker
See which servers are allowed to send email for your domain.
Open tool
DKIM checker
Confirm your emails are signed, using your domain and selector.
Open tool
DMARC checker
Check your DMARC policy and where reports are sent.
Open tool
Blacklist check
Find out if your domain is on the major email blocklists.
Open tool
Fix deliverability for good
DoReach sets up SPF, DKIM, DMARC and MX when you add a domain, warms up your inboxes, and tests inbox placement before a campaign goes out.