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What breaks Coverage Docs Blog Pricing

ToolsDomain health check DNS propagation checker Sitemap validator Blacklists Open ports

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Getting startedGetting started with DomainCare Add your first domain API quickstart

ChecksAll checks Uptime checks SSL checks DNS checks Registry checks Email deliverability Blacklist checks Site speed checks Robots.txt checks Sitemap checks Nameserver checks Redirect checks Security headers check Open ports check CMS detection

NotificationsNotifications overview Notification channels Critical-severity escalation Per-check controls

BillingBilling & plans Volume pricing Free trial Downgrade and cancellation

Status pagesStatus pages — overview Getting started with status pages Branding your status page Status page slug rules Advisory checks on a public status page Custom domain for status pages

DiagnosticsDiagnostics DNS propagation tool

TroubleshootingTroubleshooting How to diagnose and fix a DMARC failure

LearnLearn DMARC quarantine vs reject explained Domain expired: what to do and the renewal grace period Domain expiry explained — what happens when your domain expires Domain hijacking — how it works and how to prevent it How to set up an SPF record SPF: too many DNS lookups (the 10-lookup limit, and how to fix it)SSL certificate expired: how to fix it, and never see it again SSL certificate types compared (DV vs OV vs EV, wildcards, multi-domain)SSL monitoring: what to actually watch, and the alert thresholds that matter What is BIMI? Brand logo display in the inbox, explained What is DMARC?WHOIS expiry monitoring: how it works and why RDAP is replacing it SPF vs DKIM vs DMARC — what each does and how they work together

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APIAPI Authentication Domains API MCP server setup Interactive reference

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DocsTroubleshooting

Troubleshooting

Step-by-step guides for resolving common domain issues flagged by DomainCare alerts.

Last updated 6/9/20261 min read

Troubleshooting

Actionable guides for fixing issues that DomainCare alerts you about.

Guides

DMARC fail: how to fix — Diagnose and resolve DMARC authentication failures.

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