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
-
What Tools Should I Use To Investigate Damage to my website
I would like to know what tools I should use and how to investigate damage to my website in2town.co.uk I hired a person to do some work to my website but they damaged it. That person was on a freelance platform and was removed because of all the complaints made about them. They also put in backdoors on websites including mine and added content. I also had a second problem where my content was being stolen. My site always did well and had lots of keywords in the top five and ten, but now they are not even in the top 200. This happened in January and feb. When I write unique articles, they are not showing in Google and need to find what the problem is and how to fix it. Can anyone please help
Technical SEO | | blogwoman10 -
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 -
I have multiple URLs that redirect to the same website. Is this an issue?
I have multiple URLs that all lead to the same website. Years ago they were purchased and were sitting dormant. Currently they are 301 redirects and each of the URLs feed to different areas of my website. Should I be worried about losing authority? And if so, is there a better way to do this?
Technical SEO | | undrdog990 -
Rel=canonical on Godaddy Website builder
Hey crew! First off this is a last resort asking this question here. Godaddy has not been able to help so I need my Moz Fam on this one. So common problem My crawl report is showing I have duplicate home pages www.answer2cancer.org and www.answer2cancer.org/home.html I understand this is a common issue with apache webservers which is why the wonderful rel=canonical tag was created! I don't want to go through the hassle of a 301 redirect of course for such a simple issue. Now here's the issue. Godaddy website builder does not make any sense to me. In wordpress I could just go add the tag to the head in the back end. But no such thing exist in godaddy. You have to do this weird drag and drop html block and drag it somewhere on the site and plug in the code. I think putting before the code instead of just putting it in there. So I did that but when I publish and inspect in chrome I cannot see the tag in the head! This is confusing I know. the guy at godaddy didn't stand a chance lol. Anyway much love for any replies!
Technical SEO | | Answer2cancer0 -
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 -
Google is Showing Website as "Untitled"
My freelance designer made some changes to my website and all of a sudden my homepage was showing the title I have in Dmoz. We thought maybe the NOODP tag was not correct, so we edited that a little and now the site is showing as "Untitled". The website is http://www.chemistrystore.com/. Of course he didn't save an old copy that we can revert to. That is a practice that will end. I have no idea why the title and description that we have set for the homepage is not showing in google when it previously was. Another weird thing that I noticed is that when I do ( site:chemistrystore.com ) in Google I get the https version of the site showing with the correct title and description. When I do ( site:www.chemistrystore.com ) in Google I don't have the hompage showing up from what I can tell, but there are 4,000+ pages to the site. My guess is that if it is showing up, it is showing up as "Untitled". My question is.... How can we get Google to start displaying the proper title and description again?
Technical SEO | | slangdon0 -
How do I check if my IP is blocked?
We changed servers and where our sites once ranked very highly (page 1 for all sites), they now are nowhere to be seen. Someone suggested that our IP might be blocked. Someone else suggested SEOMoz was the place to go to get it checked. Any help would be GREATLY appreciated. With thanks. Bryan
Technical SEO | | FortressLearning0 -
Has google panelized us ? If so, why ? How do I know if our website is panelized ?
We were ranked on first page among top 5 position a year ago for most of our pages. On one fine day, google decided to drop us from the results although google keeps indexing our pages. Google index our pages regularly but doesn't show them in its results. All google traffic we receive is for our own site name and its variations. I wanted to know - how do we know if google has panelized us. Why has google panelized us ? If they have panelized us, what can we do to get out of it ? Also I wanted to know if any tool will help me identify such thing. We have not done any link building. Our site page rank is 4 (it was 5 few months ago). All we did was on page optimization. Thanks for your help!
Technical SEO | | seoidea0