In a previous diary, I presented a dashboard that I’m using to keep track of the DNS traffic on my networks. Tracking malicious domains is useful but what if you could, in a certain way, “predict” the upcoming domains that will be used to host phishing pages? Being a step ahead of the attackers is always good, right? Thanks to the CertStream service (provided by Cali Dog Security), you have access to a real-time certificate transparency log update stream. Briefly, Certificate Transparency helps to protect against threats that make use of bad certificates.