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
-
Migrating micro site into existing website
My company is planning to migrate an existing (ecommerce) micro site - which sits on its own domain - into their main ecommerce site. This means that the content will be moved from www.microdomain.co.uk to www.maindomain.com/category. Some products already exist on the main domain. The micro site is fairly small with just over 400 pages - I am planning to map each URL to the new URL (exact corresponding page) and create 301 redirects for each. Where any additional content does not exist yet on the existing main domain, we will create it and 301 redirect to it. The micro site currently ranks fairly well for some keywords - being such a specialised micro site, (some of) the keywords also form part of the domain name, however, they won't on the main page although they may form part of the URL (category). As an example (using a made up URL), our micro site www.bread-sticks.co.uk ranks on page 1 for the keyword bread sticks - we don't just sell bread sticks on www.bread-sticks.co.uk but also rolls and bread though, bread sticks is one category of very closely related categories. Say our main domain is www.supermarket.co.uk (selling a wide range of food / drink products. The micro site will be moving to www.supermarket.co.uk/baked-products/ - which is a category. Within that category, there are sub categories, i.e. bread sticks, rolls and bread which will sit under www.supermarket.co.uk/bread-sticks/ etc. What would be the best way for ensuring that our main domain would take over the rankings from our micro site, given that it will be sitting on our main domain as a category (one of many)? Can we expect www.supermarket.co.uk/baked-products/ or www.supermarket.co.uk/bread-sticks/ to replace www.bread-sticks.co.uk in the rankings simply by 301 redirecting? Thanks for your help!
Technical SEO | | ViviCa10 -
Images, CSS and Javascript on subdomain or external website
Hi guy's, I came across webshops that put images, CSS and Javascript on different websites or subdomains. Does this boost SEO results? On our Wordpress webshop all the sourcescodes are placed after our own domainname: www.ourdomainname.com/wp-includes/js/jquery/jquery.js?ver=1.11.3'
Technical SEO | | Happy-SEO
www.ourdomainname.com/wp-content/uploads/2015/09/example.jpg Examples of other website: Website 1:
https://www.zalando.nl/heren-home/ Sourcecode:
https://secure-i3.ztat.net//camp/03/d5/1a0168ac81f2ffb010803d108221.jpg
https://secure-media.ztat.net/media/cms/adproduct/ad-product.min.css?_=1447764579000 Website 2:
https://www.bol.com/nl/index.html Sourcecode:
https://s.s-bol.com/nl/static/css/main/webselfservice.1358897755.css
//s.s-bol.com/nl/upload/images/logos/bol-logo-500500.jpg Website 3:
http://www.wehkamp.nl/ Sourcecode:
https://static.wehkamp.nl/assets/styles/themes/wehkamp.color.min.css?v=f47bf1
http://assets.wehkamp.com/i/wehkamp/350-450-layer-SDD-wk51-v3.jpg0 -
Reverse IP Lookup
I have a client that has over 90,000 incoming links from a single IP address. I can't figure out who's linking to them. I've used several different reverse IP lookup tools and can tell that the server is in Europe and ISP is AT&T Global Network Services Nederland B.V.. (http://www.ip-adress.com/reverse_ip/194.196.0.36) Says there's 0 hosts on that IP. Any suggestions?
Technical SEO | | DonnaDuncan0 -
How to do ip canonicalization ?
Hi , my website is opening with IP too. i think its duplicate content for google...only home page is opening with ip, no other pages, how can i fix it?, might be using .htaccess i am able to do...but don't know proper code for this...this website is on wordpress platform... Thanks Ramesh
Technical SEO | | unibiz0 -
How to search HTML source for an entire website
Is there a way for me to do a "view source" for an entire website without having to right-click every page and select "view source" for each of them?
Technical SEO | | SmartWebPros0 -
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 -
Why google index my IP URL
hi guys, a question please. if site:112.65.247.14 , you can see google index our website IP address, this could duplicate with our darwinmarketing.com content pages. i am not quite sure why google index my IP pages while index domain pages, i understand this could because of backlink, internal link and etc, but i don't see obvious issues there, also i have submit request to google team to remove ip address index, but seems no luck. Please do you have any other suggestion on this? i was trying to do change of address setting in Google Webmaster Tools, but didn't allow as it said "Restricted to root level domains only", any ideas? Thank you! boson
Technical SEO | | DarwinChinaSEO0 -
The effect of same IP addresses on SERPs
Hi All, Just wondering if anyone could shed some light on the following. If I was ranking number 1 for a term, what would the effects be of creating another site, hosted on the same server / IP, same whois info, same URL but a different TLD, and trying to get this to rank for the term also. Does G restrict search results to one IP per page or is this perfectly possible? (The term is fairly uncompetitive) Thanks, Ben
Technical SEO | | Audiohype0