Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Websites on same c class IP address
-
If two websites are on the same c class IP address, what does it mean ?
Does two websites belong to the same company ?
-
But if you have 20 sites linking to you, and they're all from the same Class C IP address, and those are pretty much your ONLY links, that looks a bit fishy to the search engines. It's a signal to the search engines that "hey, this person can only get links from sites that have a high probability of the same person being in control of all of the sites".
That's why you'll see people talk about linkbuilding and wanting to do so from different Class C IP addresses.
-
Not necessarily. f you see different C blocks, you are usually talking about two different webhosts. So there is a chance that different sites from one owner are hosted in one C-block.
Even an IP-address is not always used for one company. You can have your own IP-address which leads to your website. But providers can also share an IP-address for different domains/ websites for different companies.
To find if website belong tot the same owner you need to check te registars database or tools like allwhois.com.
-
Thanks Olaf.
So, does it mean that sites hosted on same C class IP belong to one owner ?
-
A "C" Block address is based on your IP address.
For example 190.245.111.001 is a standard IP address. The c-blocks in this case are: AAA.BBB.CCC.001-254
So these are within the same C-class:
190.245.111.001
190.245.111.230And these are different C-Class IP's:
190.245.111.001
190.245.222.001Google may assume that sites hosted in differnet C-blocks are more likely to be from different people.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
My WP website got attack by malware & now my website site:www.example.ca shows about 43000 indexed page in google.
Hi All My wordpress website got attack by malware last week. It affected my index page in google badly. my typical site:example.ca shows about 130 indexed pages on google. Now it shows about 43000 indexed pages. I had my server company tech support scan my site and clean the malware yesterday. But it still shows the same number of indexed page on google.
Technical SEO | | ChophelDoes anybody had ever experience such situation and how did you fixed it. Looking for help. Thanks FILE HIT LIST:
{YARA}Spam_PHP_WPVCD_ContentInjection : /home/example/public_html/wp-includes/wp-tmp.php
{YARA}Backdoor_PHP_WPVCD_Deployer : /home/example/public_html/wp-includes/wp-vcd.php
{YARA}Backdoor_PHP_WPVCD_Deployer : /home/example/public_html/wp-content/themes/oceanwp.zip
{YARA}webshell_webshell_cnseay02_1 : /home/example2/public_html/content.php
{YARA}eval_post : /home/example2/public_html/wp-includes/63292236.php
{YARA}webshell_webshell_cnseay02_1 : /home/example3/public_html/content.php
{YARA}eval_post : /home/example4/public_html/wp-admin/28855846.php
{HEX}php.generic.malware.442 : /home/example5/public_html/wp-22.php
{HEX}php.generic.cav7.421 : /home/example5/public_html/SEUN.php
{HEX}php.generic.malware.442 : /home/example5/public_html/Webhook.php0 -
Multilingual website
My website is https://www.india-visa-gov.in and we are doing multilingual. There are three options 1. TLD eg india-visa-gov.fr (French) india-visa-gov.de (German) 2. Subdomain eg: fr.india-visa-gov.in (French) de.india-visa-gov.in (German) 3. Folders https://www.india-visa-gov.in/fr/ (French) https://www.india-visa-gov.in/de/ (German) We have tried the 3rd option but need to know whether its better or not for the long term health from SEO. Does the MOZ DA carry better in Subdomain or TLD or Folders? What does MOZ recommend to maintain DA? Thanks
Technical SEO | | amitdipsite150220200 -
Measuring the size of a competitors website?
I think our website is too big, far too many indexed pages. I'd like to do some research on how big our competitors' websites are (how many indexed pages). Is there a way to do this? Cheers, Rhys
Technical SEO | | SwanseaMedicine0 -
Product meta tags are not updating in my Magneto website!
I need some help! For some reason, each time I update the product meta tags in my Magento website, it doesn't change on the current website? Could someone help me understand why that is?
Technical SEO | | One2OneDigital0 -
Website credits for designers - good or bad
Hi My core service is web design and development. I often place a credit on my clients websites pointing them back to my web design or web development pages. Is this a wise practice with penguin and panda updates? Would this also pull my ranking down?
Technical SEO | | Cocoonfxmedia0 -
Websites being hacked & duplicated, what should we do?
Hi, please help! Our website was hacked and being totally duplicated. They even injected codes to intercept our orders. Although the codes issue had been solved, still there're two mirror sites out there. When search for some of our key words, they even have good ranks. What exactly can we do to let Google ban those two sites. Thanks in advance!
Technical SEO | | Squall3150 -
Does redesigning the website effects the SEO?
What are the precautions to be taken in redesigning the website ? do it effect on link building? I am planing to re design my website, most of the Keywords are already optimized by Google, and i have given many back links to it . After redesigning my website will it get effected? Kindly answer my question
Technical SEO | | PrasanthMohanachandran0 -
What is a Class C Subnet and why should I care?
So I did a site analysis over at Majestic SEO and it told me that I have 100 Referring IP addresses and 92 are Class C subnets. What does this mean? Are they good, bad or irrelevant?
Technical SEO | | AaronParrish0