DNS and IP reputation are basically credibility scoring systems. These reputation or credibility scores are used for filtering purposes. Factors like IP age, location, sending history, presence on blacklists, and PTR records are used to provide the reputation scores. The scores will help decide whether things like certain emails should be directed to spam folder and if certain websites shouldn’t appear on the search engine due to its low reputation. You can check your IP reputation by using tools like google postmaster, AbuseIPDB, and talos. AbuseIPDB for example provide information like the abuse score, IP usage type, hostname associated with the IP, country, and other details that may be of use. AbuseIPDB also allows anyone to report bad IP addresses. Anyone who detect suspicious traffic can report it to AbuseIPDB.
To find out details on DNS or IP, you will use the WHOIS tool, which is a protocol that helps identify domain name registrants. Simply put, it provides contact information on the domain names and IP addresses that you query. Information like registrant’s info, name servers, registration dates, exportation dates, domain age, most recent update, and even admin and technical information will be provided. These information will help you in tasks like identifying who may be posting illegal content or engaging in scams, accelerating typical investigation process.
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