Class C IP Checker


Enter up to 40 Domains (Each Domain must be on separate line)



About Class C IP Checker

The leading search engines such as Google, Yahoo and Bing are becoming ever more advanced, refined and elegant in their search algorithms and incorporate historical and IP address data. It is now even more significant than ever to ensure that you take the mandatory precautions when designing a network of linked websites.

upseotools provide the most powerful Class C IP Checker tool as the tool is capable of checking the duplicate address of 40 domains at the same amount of time. The main purpose behind the success of our C IP checker tool is quick, speedy and free as it shows the perfect results within seconds.

Class C is the most popular class of addresses assigned to small companies and are the most used IP addresses. Small and medium-sized internet service providers purchase a pool of class C IP addresses which they assign to their customers. Internet service providers provide dynamic (shared) IP addresses to their customers. The reason for this is that since they are shared, they are cheaper and more popular. Secondly, the users that are assigned IP addresses do not use them 24/7. So when a user signs of or there is no traffic to a website, their IP addresses are assigned to other users and websites.

As dynamic class C IP addresses are shared across multiple nodes, there are dangers associated with them. If your website has a dynamic C class IP address, it can affect your website’s ranking on search engines and your SEO efforts could be wasted. If a website which is sharing the same IP address as yours gets blacklisted, your website might also get blacklisted. It happens when a search engine blacklists a website. It does not blacklist a website by just its domain name but by its IP address as well. Search engines when they visit a website do so by its IP address, as the IP address is the unique identifier of the domain. Internet service providers foresee this possibility, and if a website gets blacklisted, they reassign new IP addresses to the other websites that were sharing the same dynamic class C IP address.

There are determined methods of avoiding IP address tracking like changing the IP address after regular intervals. You must not authorize cookies to enter in your computer, as cookies are the simplest way to track a computer. In case you have allowed cookies to your computer, then go to browser settings and delete it as soon as possible.

Follow these steps to check Class C of IP:

  • Write Domain Name in Text Area. Otherwise, if you have copied URL, then paste it here.
  • Check multiple domains Class C IPs, Enter Each URL in Separate Line.

These are three steps, follow them and let our tool to collect all IP addresses and calculate them. Our Advance Tool will display results in seconds, all result will be arranged in Table. It will also display either status is valid or not.

The most important reason to use this tool is:

  • Check the websites which you are sharing the IP with, is harmful to PageRank?
  • Are these Subnets are blocked?
  • How many Domains are sharing the same server?

These are some major reason, to take care of your website’s ranking. It is crucial to use Class C IP Checker tool to find out all of these.

Class C IP Checker Tool is a simple and accurate tool that displays to you the class of IP address of the domain which you can use to know that whether or not the same address is duplicated.

Use this tool to check for a duplicate Class C block or Class C subnet IP address in a list of websites, you can run a simple test by entering a maximum of 40 domain names in each.

There are five classes of IP addresses which are:

Class A - The first bit of a class an address is always set to 0. It only leaves seven bits for the network portion of the address. Class A addresses range from 0.0.0.0 – 127.0.0.0. It means there can only be 128 network numbers.

Class B - The first bit of a class B address is always set to 1 and the second bit is set to 0. It means 16,384 networks can be assigned class B addresses. The numbers range from 128.0.0.0 – 191.255.0.0.

Class C - Class C addresses have their first two bits set to 1, and the third bit is set to 0. It means 2,097,152 networks can be assigned this class of address. The numbers range from 192.0.0.0 – 223.255.255.0.

Class D - Class D addresses have their first three bits set to 1, and the fourth bit is set to 0. Class D addresses are used for multicasting applications. The numbers range from 224.0.0.0 – 239.255.255.255 and are reserved for multicast groups.

Class E - Class E addresses are reserved for experimentation and testing and have never been utilized in any standard form.