All checks

DomainCare runs 13 automated checks on every domain you add. Each check monitors a different aspect of your domain's health and fires alerts when something changes or needs attention.

Check types

Check	What it monitors	Default	Available presets
Uptime	HTTP response status, latency, redirect chains	1 min	1 min / 5 min / 15 min
SSL / TLS	Certificate expiry, chain validity, protocol version, cipher strength	6 h	6 h / 24 h / 7 d
DNS records	A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, PTR; alerts on any change	1 h	15 min / 1 h / 6 h
Nameservers	Authoritative NS responding correctly and consistently	6 h	6 h / 24 h / 7 d
Email deliverability	SPF, DKIM, DMARC records and configuration	6 h	6 h / 24 h / 7 d
Domain registry (RDAP)	Registrar, status codes, expiry date, registrant changes	12 h	6 h / 24 h / 7 d
Blacklist	Domain and IP reputation across 49 DNSBL sources + Google Safe Browsing	6 h	6 h / 24 h / 7 d
Robots.txt	Existence, accessibility, validity, content changes	12 h	6 h / 24 h / 7 d
Sitemap	Existence, accessibility, XML validity	24 h	6 h / 24 h / 7 d
Redirect	HTTP → HTTPS redirect, www canonicalization, chain length	12 h	6 h / 24 h / 7 d
Site Speed	Lighthouse performance scores (mobile + desktop), Core Web Vitals, CrUX field data	24 h	6 h / 24 h / 7 d
Security headers	HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy	24 h	6 h / 24 h / 7 d
Open ports	Exposed database and admin ports (MySQL, Redis, Postgres, MongoDB, and more)	24 h	6 h / 24 h / 7 d

CMS detection — DomainCare also fingerprints your CMS (WordPress, Drupal, Joomla, Ghost, Shopify, Webflow, Squarespace) when you first add a domain. This runs once as an attribute, not on a recurring schedule. See CMS detection for details.

How checks work

When you add a domain, DomainCare runs all applicable checks immediately and stores the results. After that, each check runs on its own schedule. Every run compares the new result against the previous one and fires alerts for meaningful changes.

Subdomains automatically skip checks that only apply to apex domains (nameservers, RDAP, email auth). You can also mute or disable individual checks from the domain detail page.

Check results

Each check produces one of three states:

• Passing — everything looks good
• Warning — something needs attention but isn't critical
• Failing — a problem that requires action

Results appear on the domain detail page, grouped into sections. Click any check tile to see the full detail view with history and diagnostics.