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In the sprawling infrastructure of the internet, the Domain Name System (DNS) is often called the "phonebook of the web." But not all phonebooks are created equal. For enterprises, e-commerce platforms, and high-traffic websites, relying on default ISP DNS servers is a recipe for latency and downtime.

| Service Tier | Primary IP | Secondary IP | Function | | :--- | :--- | :--- | :--- | | | 156.154.70.1 | 156.154.71.1 | Standard resolution, no blocking. | | Malware Protection | 156.154.70.2 | 156.154.71.2 | Blocks known malicious domains (phishing, trojans). | | Malware & Adult Content | 156.154.70.3 | 156.154.71.3 | Blocks malware + porn/adult sites. | | Malware & Security Threats | 156.154.70.5 | 156.154.71.5 | Blocks malware, botnets, spyware, and command & control callbacks. |

Here’s a clean, informative social media post you can use for (by Vercara, formerly Neustar).