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
-
CSS and Javascipt files - website redesign project
UPDATED: We ran a crawl of the old website and have a list of css and javascript links as are part of the old website content. As the website is redesigned from scratch, I don't think these old css and javascipt files are being used for anything on the new site. I've read elsewhere online that you redirect "all" content files if launching/migrating to a new site. We are debating if this is needed for css and javascript files. Examples (A) http://website.com/wp-content/themes/style.css (B) http://website.com/wp-includes/js/wp-embed.min.js?ver=4.8.1
Technical SEO | | CREW-MARKETING0 -
Mobile website content optimisation
Hi there, someone I know is going to put their site to a mobile version with a mobile sub domain (m.). I have recommended responsive but for now this is their only way forward to cope with the 21st April update by Google. My question is what is the best practice for content, as its a different url will there need to be a canonical tag in to stop duplication and thus being penalised from the Google panda update? Any advice much appreciated.
Technical SEO | | tdigital0 -
Website not ranking for noncompetitive terms
Hi, We've took over a website last July and no matter what we do we just can't get it ranking in Google, even for noncompetitive terms. here is the website in question: http://www.alignandsmile.co.uk Ideally the client would like to rank for Canary Wharf but that location is competitive, the site doesn't even rank for 'Dentist New Providence Wharf E14' despite it being included in the title tag on the home page and in the content throughout the website. Directories with Align and Smile's business information do rank however. I opened a case with google through Webmaster tools and they 'reviewed your site and found no manual actions by the webspam team that might affect your site's ranking in Google.' So I'm a bit stuck. The site ranks top for the keyphrase in Bing and Yahoo...we are really struggling with Google! Any help would be much appreciated. many thanks Marcus
Technical SEO | | dentaldesign0 -
Links to Website Author
I'm a website developer, and in the past I have usually added a tiny backlink to the footer of my clients' websites like this: Website Design by MyCompanyName I understand that Google sees this as a low-quality backlink. However, I was wondering if such links can hurt my rankings. Does Penguin sees these links as spam? If so, should I add a rel="nofollow" to the links? Is there anything else I should change? I do not want to remove these links completely because they are good for marketing my business. I just want to minimize any negative SEO impact of the links. I appreciate your input. Thanks.
Technical SEO | | SiteWizard_LLC0 -
Is it considered spam to promote a website in different cities?
I have a client who wants to promote their Mobile application and website design company in California based cities. Example Keyword los angeles iphone app development - Local Monthly Search 260 san diego iphone app development - Local Monthly Search 320 san jose iphone app development - Local Monthly Search 0 san francisco windows mobile app development - Local Monthly Search 0 california iphone app development - Local Monthly Search 0 Selected san diego iphone app development los angeles drupal web design - Local Monthly Search 0 san diego drupal web design - Local Monthly Search 0 san jose drupal web design - Local Monthly Search 0 san francisco graphic design - Local Monthly Search 3600 california drupal web design - Local Monthly Search 0 Selected san francisco graphic design I have 33 keywords in 5 cities. just want to know if it is considered spam?
Technical SEO | | KLLC0 -
As a wholesale website can our independent retailer's website use (copy) our content?
As a wholesaler of villa rentals, we have descriptions, images, prices etc can our agents (independent retailers) use the content from our website for their site or will this penalize us or them in Google rankings?
Technical SEO | | ewanTHH0 -
Website is extreemly slow
A couple of days a go one of our websites became extreemly slow. I'm not sure if this is the right place to ask this question but frankly i don't where else to ask it Our hosting provider mentioned it was a socket exploid but even after removing all the infected files we are still running into a strange wait time of 45 seconds (See attachements) This has mayor efects on the SEO as well the link is www[dot]schouw[dot]org Hopefully there is someone how can help me out 12.png
Technical SEO | | TiasNimbas0 -
How to create a tree-like structure map of a website?
Hi all, The online marketing manager requested to make a tree-like map of the website. He means that he would like to see a graphical representation of the website and his contents. This way we will be able to see if there are internal link issues. The problem is that there are thousands of pages and many subdomains, manual labour would make this a very tedious task. If you would get this question, how would you try to solve this? Any software recommendation?
Technical SEO | | djingel10