Free
Step by step instructions for everything a check can find. Written for someone who does not know the terminology, with the technical detail underneath for whoever does.
By problem
Renew it, then fix the three things that caused the notice to be missed.
Read moreUsually a renewal job that stopped running somewhere nobody is looking.
Read moreWorks in your browser, fails for other people. The one that hides best.
Read moreThe four causes and what each one needs.
Read morePublishing DMARC, in the order that does not block your own invoices.
Read moreFinding the failing sender and fixing it without going dark.
Read morePublishing one that works, and the mistake that breaks it.
Read moreThe silent failure inside a record that looks perfectly correct.
Read morePublishing it, and why an existing one stops working.
Read moreConfirming it and removing it at any DNS provider.
Read moreWorking out what is exposed and restricting it properly.
Read moreA one-minute change that removes a whole category of problem.
Read moreBy registrar
Renewing, transfer lock, and moving notices off a personal address. The steps differ enough per registrar to be worth their own page.
Renewing, transfer lock and moving notices at Namecheap.
Read moreRenewing, transfer lock and moving notices at GoDaddy.
Read moreRenewing, transfer lock and moving notices at Cloudflare Registrar.
Read moreRenewing, transfer lock and moving notices at 123-reg.
Read moreRenewing, transfer lock and moving notices at Gandi.
Read moreRenewing, transfer lock and moving notices at IONOS.
Read moreRenewing, transfer lock and moving notices at OVH.
Read moreRenewing, transfer lock and moving notices at Hostinger.
Read moreRenewing, transfer lock and moving notices at Porkbun.
Read moreRenewing, transfer lock and moving notices at Squarespace Domains.
Read moreRenewing, transfer lock and moving notices at Name.com.
Read moreRenewing, transfer lock and moving notices at An unknown registrar.
Read moreBy extension
Grace periods and recovery windows differ sharply by registry, and assumptions carried over from .com are wrong often enough to be expensive.
Grace period, redemption window and what makes .com different.
Read moreGrace period, redemption window and what makes .net different.
Read moreGrace period, redemption window and what makes .org different.
Read moreGrace period, redemption window and what makes .co.uk different.
Read moreGrace period, redemption window and what makes .io different.
Read moreGrace period, redemption window and what makes .de different.
Read moreGrace period, redemption window and what makes .eu different.
Read moreGrace period, redemption window and what makes .fr different.
Read moreGrace period, redemption window and what makes .nl different.
Read moreGrace period, redemption window and what makes .ca different.
Read moreGrace period, redemption window and what makes .com.au different.
Read moreGrace period, redemption window and what makes .es different.
Read moreBy mail provider
The records are provider specific and so are the mistakes.
SPF, DKIM and DMARC records for Google Workspace, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Microsoft 365, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Zoho Mail, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Fastmail, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Proton Mail, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Namecheap Private Email, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for IONOS Mail, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Titan, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for Mailgun, and the failure specific to it.
Read moreSPF, DKIM and DMARC records for SendGrid, and the failure specific to it.
Read moreBy service
A subdomain pointing at a cancelled account can be claimed by someone else. One page per service, with its detection signature and removal steps.
How a GitHub Pages takeover is spotted and removed.
Read moreHow a Heroku takeover is spotted and removed.
Read moreHow a Amazon S3 takeover is spotted and removed.
Read moreHow a Shopify takeover is spotted and removed.
Read moreHow a Netlify takeover is spotted and removed.
Read moreHow a Webflow takeover is spotted and removed.
Read moreHow a Zendesk takeover is spotted and removed.
Read moreHow a Ghost takeover is spotted and removed.
Read moreHow a Unbounce takeover is spotted and removed.
Read moreHow a Fastly takeover is spotted and removed.
Read moreHow a Surge takeover is spotted and removed.
Read moreHow a Pantheon takeover is spotted and removed.
Read moreCheck yours
The free check finds everything at once and links each item to its guide.