Smart Web Apps WHOIS / RDAP Lookup
Category

WHOIS / RDAP Lookup

Look up domain or IP metadata via RDAP and view a clean summary plus raw JSON.

Enter a domain, IP address, or URL, then click Lookup.
Supports domains (example.com), IPs (1.1.1.1), and URLs (https://example.com/path).
Summary
Request
—
Raw RDAP JSON 

                    

                  

                


                

                  
Tool description

                  

                    Traditional WHOIS is not browser-friendly. RDAP (Registration Data Access Protocol) is the modern, structured
                    replacement that works over HTTPS and can be queried from a web page.
                  

                


                

                  
How to use

                  
    
                    
  1. Enter a domain, IP address, ASN (like AS13335), or full URL.
    2. 
                    
  2. Leave “Type” on Auto-detect (or choose a type if needed).
    3. 
                    
  3. Click Lookup to fetch RDAP data and view the summary.
    4. 
                    
  4. Use Copy buttons to export the summary or raw JSON.
    5. 
                  

                


                

                  
Why it’s useful

                  
    
                    
  • Check domain registration metadata and status flags.
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  • Investigate IP ownership ranges and related handles.
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  • Copy raw RDAP JSON for incident response or reporting.
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Use cases & interpretation

                  
    
                    
  • Security investigations: confirm registrar, nameservers, or IP range owner.
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  • Abuse reporting: extract relevant contact/handle information where available.
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  • Operations: verify expiration events and status codes.
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FAQs

                  

                    

                      

                        
                      

                      

                        

                          WHOIS often requires TCP port access and returns unstructured text. RDAP is standardized JSON over HTTPS and
                          is more reliable for modern web tooling.
                        

                      

                    

                    

                      

                        
                      

                      

                        

                          Not necessarily. Many registries redact personal details for privacy. You may still get registrar and status
                          information.
                        

                      

                    

                  

                

              


              

                

                  
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