WhoisXML API Blog

Validating email addresses upon user signup is an important process that can help improve the quality of your email list and reduce the number of bounced emails. Without an email verification process, users can create accounts using misspelled, nonexistent, or invalid email addresses. As a result, you will probably see a high number of bounces for your marketing campaigns, potentially damaging your sender reputation.

Firewalls are an essential pillar of any enterprise network security strategy. They sift traffic coming in and going out of corporate networks, offering round-the-clock perimeter protection.

Even better are today’s next-generation firewalls (NGFWs), which bring interoperability and contextualization into the mix. These hybrid firewalls provide a more effective layer of protection as they combine both traditional firewalls with newer types.

Unfortunately, NGFWs and older versions for that matter are not the “be-all and end-all” of enterprise network security. They serve as a good starting point, but they also need to be appropriately configured to work — along with the right data feeds, which can include WHOIS history data, as this post will suggest.

Have you ever thought of a domain name as one of the greatest business assets you could own? This may be the right time. A domain name serves a variety of purposes:

It’s an organization’s online distinct means of identification. It is what makes it stand out from the crowd, while usually containing the same or very similar terms as a business’s brand name. That is why it needs protection from abuse, such as copyright or trademark infringement.

App developers find it particularly challenging to make sense of user behavior. Often, users install apps out of curiosity and only use most of them once or twice before completely forgetting about them. Alternatively, they will uninstall these apps right after their curiosity is satisfied.

One way for app developers to increase user engagement and retention is by incorporating IP geolocation into their creations. By maximizing geolocation data, app developers can know their users better in a non-obtrusive manner as well as better figure out what stimulates retention.

With all of the business growth opportunities that the Web provides for e-commerce sites and brands operating online in general, also come responsibilities and risks.

Customer privacy and data, for one thing, must be safeguarded against cyber attacks — notably phishing and spam campaigns that could lead to fraud and information and identity theft. Indeed, personally identifiable information (PII) such as Social Security and driver’s license numbers, health records, and payment card information, among others, are often stolen and sold in underground markets or used in attacks. A quick black market survey, for instance, revealed that health records and passport information are sold for as much as $1,000 per set in cybercriminal one-stop shops.

You might be aware of how much Domain Name System (DNS) attacks can cripple organizations and their online properties. The 2019 Global DNS Threat Report by IDC confirms this, stating that the average cost of a DNS attack has risen by 49% since last year to $1.27 million. Companies also reported that it takes their teams more than a day to fix breaches, thus drastically affecting operations and revenues.

Today, we’ll examine the worst DNS incidents to date and how a DNS reverse lookup tool like DNS Lookup API can help organizations build up domain intelligence against them.

More and more professionals rely on IP intelligence sources such as IP Netblocks WHOIS Database to learn more about IP addresses and their ranges (consecutively numbered sets of IP addresses). Many, however, do not have a full understanding of how IP netblocks and addresses are broken down in the first place and why this information can be useful.

Essentially, IP addresses are numbers from 0 to 536,870,911. Their distribution amongst users is done by Classless Inter-Domain Routing (CIDR). The idea is that the whole interval is split into parts assigned to different bodies responsible for them. These bodies will then split their IP address intervals into smaller ones and delegate their administration to other bodies or end-users. So finally the smallest intervals will have actual owners, or, vice versa, owners will have one or more intervals.