Most domains aren't just one host — there's a shop subdomain, a staging environment, an old blog nobody remembers. Daily Website Report finds those automatically and starts tracking each one as its own site.

How discovery works

The moment you add a domain — and any time you click "Scan for subdomains" on the dashboard — we search certificate transparency logs (crt.sh) and run a DNS wordlist against the domain to find subdomains that actually resolve. This runs in the background after your request finishes, so adding a site never waits on it.

Anything found gets tracked automatically

Every subdomain that resolves and isn't already one of your tracked sites gets added on its own, with its own uptime check and its own first scan — no confirmation step, since we only add ones that are actually live. They show up nested under the parent domain on your dashboard.

Wildcard domains work differently — on purpose

If a domain resolves any random subdomain (wildcard DNS), wordlist guessing would just fabricate hundreds of fake results, so we skip it for those domains. That's what the manual "Add subdomain" field under each domain on your dashboard is for — type a label like "shop" (or a full host) and we'll add and scan it directly, as long as it's actually a subdomain of the parent.

What this means for you

You don't have to know every subdomain your organization has spun up over the years — we'll find the ones that are discoverable, and you can add anything else by hand in a few seconds. Pausing a parent domain pauses its discovered subdomains too — see our post on pausing cascades for how that works.

Add your main domain and let subdomain discovery run in the background while you look at the rest of your report.

Frequently asked questions

How long does subdomain discovery take?

It varies with how many candidates need checking, but it runs entirely in the background — you can keep using your dashboard while it works, and new subdomains simply appear as they're found.

Why didn't it find a subdomain I know exists?

Discovery relies on certificate logs and a DNS wordlist, so a subdomain with no certificate history and an unlisted name can be missed — especially on wildcard-DNS domains, where guessing is skipped entirely. Add it manually with "Add subdomain" instead.

Will discovery add subdomains I don't want tracked?

It only adds hosts that actually resolve, but if something gets added that you don't want monitored, you can delete that individual subdomain from the dashboard at any time.