Class C IP Checker: Free Online Tool to Detect Shared IP Addresses & SEO Risks

Class C Ip Checker

Enter up to 40 Domains (Each Domain must be on separate line)

About Class C Ip Checker

Worried about shared hosting leading to SEO penalties from duplicate IPs or shady neighbors? Our Class C IP Checker quickly resolves any domain to its Class C IP range (the first three octets, like 192.168.1.x) and reveals all sites sharing that block, helping you spot risks like spam farms or blacklisted hosts that could drag down your rankings.

Paste one or multiple domains (up to 40, one per line), click "Check," and get a table of results showing full IP, Class C subnet, status (valid or flagged), and linked sites. It scans against major blacklists and WHOIS data for a full picture, so you can decide if your hosting setup is safe or needs a switch to dedicated IPs.

Why it's a smart addition to your SEO toolkit:

• Bulk Scanning: Test dozens of domains or backlinks at once for efficiency.
• Risk Alerts: Highlights blacklisted IPs or high-density hosting that signals low trust.
• Reverse Lookup: Shows "neighbors" on the same C-block to assess network quality.
• SEO Safeguards: Avoid Google penalties from shared spam environments.
• Export Results: Download as CSV for easy review or client reports.

Webmasters, affiliate marketers, and agencies use it to audit link networks, evaluate hosts, and maintain clean footprints. No software downloads or limits—run checks anytime, completely free, with full privacy!