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 Website disappeared from Google Search Results overnight
Hello there, I'm the owner of the Website https://cours-toujours.com/, dedicated to reviewing running shoes. My Website is pretty young and I'm currently focused on building new reviews (so I keep adding new articles, week after week, I did not really focus on the rest of the website for now).Until a few days ago, I saw growing traffic on my Website, everything seemed good and I kept adding new reviews to my website.And then suddently traffic dropped and went to 0 in 2 days (I went from 550 impressions/day to 49 impressions/day in 2 days :/)When I look in the Google Search Console, I don't see any issue: my sitemaps are submitted and the correct number of URLs are reported I don't have any Manual Action or Security Issue I don't have any Removal Request Everything seems fine... But I can barely find my website in Google Search Results.When I do a site search (site:cours-toujours.com), I find only 2 pages of results, mostly non-important pages (categories, etc.).I asked in Google Community Forums, and i got this reply about my pages being too similar to one another (https://support.google.com/webmasters/thread/44880689?hl=en). But I'm not really happy with this answer, as all my pages have ~1000 words of unique content (even if of course they have the same structure as they are all dedicatd to reviewing a running shoe...)Any idea where this might come from/how I can fix the issue?
Technical SEO | | SimonCoursToujours0 -
Http urls on a new https website
Hi, If a site is quite new and setup as https from the beginning why would http variations exist? There are 301 redirects in place from the http to the https variation and also canonical tags pointing back to the http variation? This seems contradictory to me. I'm not sure why the http variations exist at all but they have gone to the trouble of redirecting these to the https variation indicating that it is the variation of choice but at the same time using a canonical tag that indicates the http variation is the original/main url? Thanks
Technical SEO | | MVIreland0 -
2 domains for one website
Hi, I was wondering: i have 2 domains. One is the name of the company the other one is an exact match domain. There is only one website. If I use both domains for this website which one will rank? How google react to website configured like that? Regards
Technical SEO | | LeszekNowakowski0 -
Using Product Page Content from an Offline Website
Hi all, We have two websites. One of the website's no longer sells product range A. However, on the second website, we would like to sell range A. We paid a copywriter to write some really good content for these ranges and we were wondering if we would get stung for duplicate content if we took these descriptions from website 1 and placed them on website 2. The products / descriptions are live anymore and haven't been for about 6 weeks. We're ranking for some great keywords at the moment and we don't want to spoil that. Thanks in advance! D
Technical SEO | | 10dales0 -
Google not indexing my website
Hi guys, We have this website http://www.m-health-expo.nl/ but it is not indexed by google. In webmaster tools google says that it can not fetch the site due to the robots.txt but i do not see any faults in it. http://www.m-health-expo.nl/robots.txt Do you see something strange, it really bothers me.
Technical SEO | | RuudHeijnen0 -
Matching C Block
Hi Guys We have 2 sites that are in the same niche and competing for the same keywords. The sites are on seperate domains one is UK and one is .com They have their own IP's however have both have the same C Block... We have noticed that when the rankings for one site improves the other drops.... Could the C Block be causing this?
Technical SEO | | EwanFisher0 -
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 -
Are there any tools to measure backlinks to email addresses?
Does anyone know of a tool that will allow you to track links to an email address hyperlink like mailto:user@domain.com
Technical SEO | | dsonenberg0