SSLPing can detect most SSL/TLS security issues such as weak ciphers and expired certificates. It can check your websites every day and give you a clear view of all your servers. Sign up and you'll receive email alerts whenever something goes bad.
Blacklist Monitor monitors all of your IP Addresses and Domain Names easily and cost-effectively. You will be notified as soon as any of your monitors get blacklisted so you can quickly find the spam or malware source.