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
-
Moz crawler is not able to crawl my website
Hi, i need help regarding Moz Can't Crawl Your Site i also share screenshot that Moz was unable to crawl your site on Mar 26, 2022. Our crawler was not able to access the robots.txt file on your site. This often occurs because of a server error from the robots.txt. Although this may have been caused by a temporary outage, we recommend making sure your robots.txt file is accessible and that your network and server are working correctly. Typically errors like this should be investigated and fixed by the site webmaster.
Technical SEO | | JasonTorney
my robts.txt also ok i checked it
Here is my website https://whiskcreative.com.au
just check it please as soon as possibe0 -
Why Google de-rank a website.
Hi, I was inspecting a website which is covering the topic of best wheelbarrow of 2021, it is a new website and and starts ranking on google. But, after few days it got de-rank automatically and Moz is also not showing any result to that. I was wandering why this just happened and what should I do if I made my website and will not face this kind of situation?
Technical SEO | | Moeen22330 -
Two websites, one company, one physical address - how to make the best of it in terms of local visibility?
Hello! I have one company which will be operating in two markets, printing and website design / development. I’m planning on building two websites, each for every market. But I’m a bit confused about how to optimize these websites locally. My thought is to use my physical address for one website (build citations, get listed in directories, etc. ) and PO Box for another. Do you think there is a better idea?
Technical SEO | | VELV1 -
Blocking certain countries via IP address location
We are a US based company that ships only to US and Canada. We've had two issues arise recently from foreign countries (Russia namely) that caused us to block access to our site from anyone attempting to interact with our store from outside of the US and Canada. 1. The first issue we encountered were fraudulent orders originating from Russia (using stolen card data) and then shipping to a US based International shipping aggregator. 2. The second issue was a consistent flow of Russian based "new customer" entries. My question to the MOZ community is this: are their any unintended consequences, from an SEO perspective, to blocking the viewing of our store from certain countries.
Technical SEO | | MNKid150 -
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 -
How to SEO a Website Built off Godaddy?
I have a client whose website is built off Godaddy services. I know Godaddy is not the right choice for building a website, but what's done is done. The client has already bought the Godaddy services and there's no way I can tell him to go rebuild his website before we could optimize it for SEO. I'm already facing a lot of challenges while optimizing on-page elements. When I wanted to verify the ownership for Google Analytics and Webmaster Tool via his Godaddy account. the process failed many times. it looks like Godaddy is using some kind of caching not allowing us to modify the codes. For example, I'd applied the site verification codes for Webmasters Tool 48 hours ago, and the metatag for google site verification is not yet updated in the frontend. It's quite frustrating. What would you suggest?
Technical SEO | | suskanchan1 -
Advice on Linking to an Adult Related Website
I have a question regarding whether or not Google would penalize my main website for linking to a website that has adult content. The site I am linking to is not a porn site, rather it is a site that sells web site templates for adult related stores selling sexy toys, videos, etc. For example my site that is linking to the adult related website is here: http://www.websitetemplatedesign.com/ and the link to the site is in the footer at the bottom left which is an icon. And it links to http://www.adultsextemplates.com/ Im just looking for advice as to whether or not this could be a penalty or not. I did suffer major SERP loss in the last month and Im trying to find what I am doing that may have caused this. Any advice would be appreciated.
Technical SEO | | jmccommas0 -
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