Monitor SSL certs (incl. origin behind Cloudflare), domain expiry, DNS, email auth and blacklists.
Free
One server, in analytics & monitoring. Monitor SSL certs (incl. origin behind Cloudflare), domain expiry, DNS, email auth and blacklists.
Analytics & Monitoring
Monitor SSL certs (incl. origin behind Cloudflare), domain expiry, DNS, email auth and blacklists.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.