DomainCat is unclaimed —

DomainCat

SSL & Domain Expiry Monitoring·domaincat.app

$12–$29/mo · Free plan See pricing ↓

DomainCat monitors SSL certificates (including the origin certificate behind Cloudflare), domain expiry dates, DNS records, WHOIS data, and email security (SPF, DKIM, DMARC, blacklists) for a user's domains. It sends alerts before certificates or domain registrations expire, and provides a dashboard, CSV import, grouping/tagging, and a REST API with Grafana-compatible output.

What it's for

Monitor SSL certificate expiry and validityMonitor the origin SSL certificate behind CloudflareTrack domain registration expiry via WHOISLive DNS record lookups (A, AAAA, MX, CNAME, NS)Check email deliverability configuration (SPF, DKIM, DMARC) and blacklist statusBulk import domains via CSVOrganize domains with groups and tagsAlert clients/domain owners as an MSP managing multiple client domainsFeed domain and certificate data into Grafana dashboards via API

Features 15

30/14/7 day expiry alerts
Automated checks (daily on Free, every 6 hours on Pro, hourly on MSP)
Blacklist lookups across major RBLs
CSV bulk import of domains
Domain Registration Health via WHOIS (registrar, expiry)
Email Deliverability checks (SPF validation, DKIM detection, DMARC policy)
Groups and Tags for organizing domains
HTTP redirect chain and security headers check
Live DNS Lookup (A, AAAA, MX, CNAME, NS)
Manual re-check trigger from domain detail panel
MSP Workflow with separate views for own vs. client domains
Origin Cert Monitoring behind Cloudflare
Owner email alerts to notify cert owners directly
REST API with Grafana-compatible output
SSL Certificate Monitoring (issuer, expiry, SANs, chain validity)

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

ForMSPs

Company740ft

Integrations

Grafana

Resources

Pricing

FreeFree

No card required.

5 domains, daily checks

Pro$12/mo

Marked 'Most popular'.

50 domains, checks every 6 hours

MSP$29/mo

Unlimited domains, Hourly checks, Managed-for-others workflow, Owner email alerts, Everything in Pro

Unlimited domains, hourly checks