Enter up to 40 Domains (Each Domain must be on separate line)
About Class C Ip Checker
Avoid SEO Footprints with Our Free Class C IP Checker
In the world of technical SEO, your website's hosting environment matters. Every website lives at an IP address, and these addresses are organized into blocks, or "digital neighborhoods." A Class C block is a specific segment of 256 IP addresses. For search engines, having a large number of websites that all link to each other from the same Class C block can be a major red flag, potentially signaling a manipulative link network.
For advanced SEOs and network managers in Colombo and across the globe, ensuring a diverse hosting footprint is crucial for a healthy and natural-looking backlink profile. The Class C IP Checker at ToolSeel.Com is the essential tool for this specific analysis. At 10:26 AM on Wednesday, September 3, 2025, we offer a powerful utility that lets you check if multiple domains are hosted within the same Class C block. Simply enter your list of domains, and our tool will analyze their IPs and instantly flag any that share the same digital neighborhood.
Why You Should Use a Class C IP Checker
This specialized tool is a must-have for a variety of advanced SEO and network management tasks.
Private Blog Network (PBN) Auditing: The most critical use. Verify that all the websites in your network are hosted on unique Class C blocks to avoid leaving an obvious and risky footprint for search engines.
Link Building and Prospecting: When acquiring backlinks, check that the links you are building are coming from a diverse range of IP neighborhoods to maximize their value.
Hosting Provider Analysis: Ensure that your web host is providing you with a unique IP environment and not placing your site on a crowded block with potentially low-quality "neighbors."
Competitor Network Analysis: Investigate a competitor's backlink profile to see if they are leveraging a network of sites on the same Class C block.
Don't let a predictable hosting footprint put your SEO efforts at risk. Get the clear insights you need to build a powerful and diverse web presence. Use the fast, free, and essential Class C IP Checker at ToolSeel.Com to audit your network today.
Class C Ip Checker Key Features
Find Duplicate Class C
Enter a list of domains to see which ones are on the same Class C IP block.
Avoid PBN Footprints
Check if your network of sites has a hosting footprint that Google can detect.
Groups Duplicate IPs
Our report clearly groups together the domains that share the same IP block.
Shows Full IP & Hostname
The results also include the full IP address for each of your domains.
Check a List of Domains
Just paste your entire list of domains, one per line, to start the check.
Export to CSV
Easily download the full report for your records or for further analysis.
Class C Ip Checker FAQs
This is an SEO tool that checks if multiple domains are hosted on the same Class C IP block. Search engines may see websites sharing a Class C block as being related, which can be a footprint for private blog networks (PBNs).
Simply paste a list of domain names into the text box, with one domain on each line. Our tool will then find the IP address for each domain and group together any that share the same Class C IP block for your review.
SEOs use it to check for footprints in a private blog network (PBN). Link builders also use it to ensure the backlinks they are acquiring come from a diverse range of servers, which appears more natural to search engines like Google.
If many sites that link to you share a Class C IP block, Google might see this as a footprint of a link network. This can lead to those links being devalued or, in some cases, a manual penalty for participating in a link scheme.
Yes, your research is confidential. The list of domains you check is used only to perform the real-time IP lookup. We do not store, log, or share this sensitive data. Your private network information and SEO research remain completely secure.