January 23, 2020

What is IPv4 Blacklisting?

IPv4 address blacklisting is a very common practice in the IPv4 marketplace these days. Most of us would have experienced networking attacks in one form or the other, such as malware, phishing, spam emails, or ransomware attacks. These malicious attacks originate from a local computer using the internet (meaning an IP address) and find their way to yours. There are many dedicated organizations, which track down such IPv4 addresses that are used for spamming or networking attacks. They have public databases of the blacklisted IPv4 addresses, which can be used by anyone to block connections from suspicious IPs.

Some ISPs and private companies also provide a list of blacklisted IPv4 addresses to help make their network safer for the users. Besides, you can implement a few security measures as well to avoid such networking attacks, such as using DNS-over-HTTPS, DNSSEC, RPKI, TLS, HTTPS, and DKIM. These security protocols detect and prevent malicious attacks from suspicious IPs and help to make the internet browsing experience safer for you.

Why Check for IPv4 Blacklisting When Buying an Address Block

It is very important to make sure that the IPv4 addresses you are buying are not blacklisted. No one would want to have an IP address that seems suspicious to other internet users. This will affect the reputation of your company, and your newly acquired IP addresses are likely to be blocked as well. That is why you should work with a reliable IPv4 broker to avoid buying a blacklisted IPv4 address by mistake.

Although it is also possible to check for IPv4 blacklisting on your own, the process can get very complicated. You will need to find a trustworthy service to thoroughly scan huge blocks of IPv4 addresses for blacklisting. What’s more, there are multitudes of public blacklists available today, but not all of them are genuine and offer consistent data. That is why working with an expert IPv4 broker is always the best way to proceed.

A reputable IPv4 broker will use all their expertise, technical knowledge, and specialized software to ensure that the IPv4 addresses you buy have not been used for spam, phishing, or any kind of networking attack. This, in turn, allows you to complete the IPv4 address transaction safely and effectively. Besides, when you work with a professional IPv4 broker, you can also avoid the common pitfalls in the IPv4 marketplace. This will allow you to use the financial resources of your company in the best way to buy IPv4 address blocks.