ok, here's the problem its not possible to make a call here because the registration is not on a user name but on the Ip, so the call should be by implementing a class on the interface...(see last link)

www.sis.pt

• Info
• Summary
  • IP addresses
  • The IP address 107.154.112.99 hosted by Incapsula Inc in Dover DE United States,
  • The IP address 193.47.185.103 hosted by CEGER in Portugal,
• Similar
• Records
• Graph
• Shared
  • IP of www.sis.pt
  • CNAME of
  • IP addresses that have PTR of www.sis.pt
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Information

The information tab displays an easy overview of a site's credibility, using various sources summarized in a comprehensible scorecard.

check www.sis.pt robtex (beta test)

Scorecard for www.sis.pt

Test↓	Points↕	Date↓	Extra↕
Domain Name Service	N/A
Analyzed		Aug 22, 2016 3:11 PM
Grand total	0-0=0

Information

DNS Records

Number of IP Records (after resolving CNAME:s and CDN analysis and deduplication):	1
CNAME:s of this hostname:	6gfgq.x.incapdns.net
IP Records:	193.47.185.103

Checksums

MD5 sum of host name:	325f4cb82b8196344b0f84a1ae2050be
SHA1 sum of host name:	4a61fb5f2799d2c88079ac44f6b54f8dd7f6b8e5
SHA256 sum of host name:	7f548e6c9f16a4b9ebdeddbc1543f3f6f72dbc7c9f7e4151c79b63b74dceb229

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Summary

The summary displays data on what Internet Protocols a domain points to (A-records for IPv4, and AAAA-records for IPv6). It also contains information on name- and mail servers.

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What IP addresses does www.sis.pt use?

www.sis.pt uses the two IP addresses 107.154.112.99 and 193.47.185.103 , hereafter referred to as "IP group 1",

The IP address 107.154.112.99 hosted by Incapsula Inc in Dover DE United States,

There are about twenty host names that point to the IP address 107.154.112.99 hosted by Incapsula Inc in Dover DE United States, .

• Eight of those point only to that IP address .
• Four of them use the six name servers ns1.myhostadmin.net, ns2.myhostadmin.net, ns3.myhostadmin.net, ns4.myhostadmin.net, ns5.myhostadmin.net and ns6.myhostadmin.net .
• One of them point to the five IP addresses 107.154.112.99, 198.148.92.53, 198.148.92.56, 198.148.92.58 and 198.148.92.62 .
• One of them point to the nine IP addresses 23.1.116.146, 23.12.228.143, 23.50.116.146, 23.74.68.146, 23.215.218.19, 104.68.113.118, 104.82.9.85, 107.154.112.99 and 184.86.177.143 .

The IP address 193.47.185.103 hosted by CEGER in Portugal,

There are six host names that point to the IP address 193.47.185.103 hosted by CEGER in Portugal, .

• Five of those point only to that IP address .
• One of them point to IP group 1 .

https://www.robtex.com/dns/www.sis.pt.html 

http://twistedoakstudios.com/blog/Post774_anonymous-implementation-classes-a-design-pattern-for-c