diff --git a/brute.py b/brute.py
index db2e768..16d5534 100644
--- a/brute.py
+++ b/brute.py
@@ -157,7 +157,7 @@ def query_domain_ns_a(ns_list):
 
 def query_domain_ns(domain):
     logger.log('INFOR', f'Querying NS records of {domain}')
-    domain = utils.get_maindomain(domain)
+    domain = utils.get_main_domain(domain)
     resolver = utils.dns_resolver()
     try:
         answer = resolver.query(domain, 'NS')
@@ -508,7 +508,7 @@ class Brute(Module):
         if self.place is None:
             self.place = '*.' + domain
         wordlist = self.wordlist
-        main_domain = self.get_maindomain(domain)
+        main_domain = utils.get_main_domain(domain)
         if domain != main_domain:
             wordlist = self.recursive_nextlist
         if self.word:
diff --git a/common/module.py b/common/module.py
index c213a9e..4130d9e 100644
--- a/common/module.py
+++ b/common/module.py
@@ -213,16 +213,6 @@ class Module(object):
     def match_subdomains(self, html, distinct=True, fuzzy=True):
         return utils.match_subdomains(self.domain, html, distinct, fuzzy)
 
-    @staticmethod
-    def get_maindomain(domain):
-        """
-        Get main domain
-
-        :param str domain: domain
-        :return: main domain
-        """
-        return Domain(domain).registered()
-
     def save_json(self):
         """
         Save the results of each module as a json file
diff --git a/common/utils.py b/common/utils.py
index d357f00..45b6b56 100644
--- a/common/utils.py
+++ b/common/utils.py
@@ -622,7 +622,7 @@ def check_version(local):
         logger.log('INFOR', f'The current version {local} is already the latest version')
 
 
-def get_maindomain(domain):
+def get_main_domain(domain):
     return Domain(domain).registered()
 
 
diff --git a/modules/certificates/censys_api.py b/modules/certificates/censys_api.py
index 04f8306..e3a1768 100644
--- a/modules/certificates/censys_api.py
+++ b/modules/certificates/censys_api.py
@@ -6,7 +6,7 @@ from config.log import logger
 class CensysAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Certificate'
         self.source = "CensysAPIQuery"
         self.addr = 'https://www.censys.io/api/v1/search/certificates'
diff --git a/modules/certificates/crtsh.py b/modules/certificates/crtsh.py
index 54abb2d..f666f0e 100644
--- a/modules/certificates/crtsh.py
+++ b/modules/certificates/crtsh.py
@@ -4,7 +4,7 @@ from common.query import Query
 class Crtsh(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Certificate'
         self.source = 'CrtshQuery'
         self.addr = 'https://crt.sh/'
diff --git a/modules/certificates/google.py b/modules/certificates/google.py
index dbf7b7d..f95349b 100644
--- a/modules/certificates/google.py
+++ b/modules/certificates/google.py
@@ -4,7 +4,7 @@ from common.query import Query
 class Google(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Certificate'
         self.source = 'GoogleQuery'
         self.addr = 'https://transparencyreport.google.com/' \
diff --git a/modules/check/axfr.py b/modules/check/axfr.py
index 5babfcb..b5c0f24 100644
--- a/modules/check/axfr.py
+++ b/modules/check/axfr.py
@@ -22,7 +22,7 @@ class CheckAXFR(Module):
 
     def __init__(self, domain: str):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Check'
         self.source = 'AXFRCheck'
         self.results = []
diff --git a/modules/check/cdx.py b/modules/check/cdx.py
index 69be5b3..6b44a54 100644
--- a/modules/check/cdx.py
+++ b/modules/check/cdx.py
@@ -11,7 +11,7 @@ class CheckCDX(Module):
     """
     def __init__(self, domain: str):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Check'
         self.source = "CrossDomainXml"
 
diff --git a/modules/check/cert.py b/modules/check/cert.py
index 9b82fe0..018c3a6 100644
--- a/modules/check/cert.py
+++ b/modules/check/cert.py
@@ -13,7 +13,7 @@ from config.log import logger
 class CheckCert(Module):
     def __init__(self, domain):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.port = 443  # ssl port
         self.module = 'Check'
         self.source = 'CertInfo'
diff --git a/modules/check/csp.py b/modules/check/csp.py
index 518abfb..3c25127 100644
--- a/modules/check/csp.py
+++ b/modules/check/csp.py
@@ -13,7 +13,7 @@ class CheckCSP(Module):
     """
     def __init__(self, domain, header):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Check'
         self.source = 'ContentSecurityPolicy'
         self.csp_header = header
diff --git a/modules/check/nsec.py b/modules/check/nsec.py
index 51c33fd..a5e55e6 100644
--- a/modules/check/nsec.py
+++ b/modules/check/nsec.py
@@ -8,7 +8,7 @@ from common import utils
 class CheckNSEC(Module):
     def __init__(self, domain):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'check'
         self.source = "CheckNSEC"
 
diff --git a/modules/check/robots.py b/modules/check/robots.py
index 6a37e7f..e717588 100644
--- a/modules/check/robots.py
+++ b/modules/check/robots.py
@@ -10,7 +10,7 @@ class CheckRobots(Module):
     """
     def __init__(self, domain):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Check'
         self.source = 'Robots'
 
diff --git a/modules/check/sitemap.py b/modules/check/sitemap.py
index 5696f53..b7f2d10 100644
--- a/modules/check/sitemap.py
+++ b/modules/check/sitemap.py
@@ -10,7 +10,7 @@ class CheckRobots(Module):
     """
     def __init__(self, domain):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Check'
         self.source = 'Sitemap'
 
diff --git a/modules/collect.py b/modules/collect.py
index 70ae21a..aa8e281 100644
--- a/modules/collect.py
+++ b/modules/collect.py
@@ -5,6 +5,7 @@ import importlib
 import dbexport
 from config.log import logger
 from config import setting
+from common import utils
 
 
 class Collect(object):
@@ -13,7 +14,7 @@ class Collect(object):
     """
 
     def __init__(self, domain, export=True):
-        self.domain = domain
+        self.domain = utils.get_main_domain(domain)
         self.elapse = 0.0
         self.modules = []
         self.collect_funcs = []
diff --git a/modules/datasets/binaryedge_api.py b/modules/datasets/binaryedge_api.py
index 51b5d28..b85807d 100644
--- a/modules/datasets/binaryedge_api.py
+++ b/modules/datasets/binaryedge_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class BinaryEdgeAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'BinaryEdgeAPIQuery'
         self.addr = 'https://api.binaryedge.io/v2/query/domains/subdomain/'
diff --git a/modules/datasets/bufferover.py b/modules/datasets/bufferover.py
index c58d94f..4007394 100644
--- a/modules/datasets/bufferover.py
+++ b/modules/datasets/bufferover.py
@@ -6,7 +6,7 @@ from config.log import logger
 class BufferOver(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'BufferOverQuery'
         self.addr = 'https://dns.bufferover.run/dns?q='
diff --git a/modules/datasets/cebaidu.py b/modules/datasets/cebaidu.py
index c529871..233a32f 100644
--- a/modules/datasets/cebaidu.py
+++ b/modules/datasets/cebaidu.py
@@ -4,7 +4,7 @@ from common.query import Query
 class CeBaidu(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'CeBaiduQuery'
         self.addr = 'https://ce.baidu.com/index/getRelatedSites'
diff --git a/modules/datasets/chinaz.py b/modules/datasets/chinaz.py
index 6b0b655..d781b78 100644
--- a/modules/datasets/chinaz.py
+++ b/modules/datasets/chinaz.py
@@ -4,7 +4,7 @@ from common.query import Query
 class Chinaz(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'ChinazQuery'
         self.addr = 'https://alexa.chinaz.com/'
diff --git a/modules/datasets/chinaz_api.py b/modules/datasets/chinaz_api.py
index 038d791..e8e8738 100644
--- a/modules/datasets/chinaz_api.py
+++ b/modules/datasets/chinaz_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class ChinazAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'ChinazAPIQuery'
         self.addr = 'https://apidata.chinaz.com/CallAPI/Alexa'
diff --git a/modules/datasets/circl_api.py b/modules/datasets/circl_api.py
index 5b9f3d2..fa912b1 100644
--- a/modules/datasets/circl_api.py
+++ b/modules/datasets/circl_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class CirclAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'CirclAPIQuery'
         self.addr = 'https://www.circl.lu/pdns/query/'
diff --git a/modules/datasets/dnsdb_api.py b/modules/datasets/dnsdb_api.py
index 0fc2f45..fe51a6c 100644
--- a/modules/datasets/dnsdb_api.py
+++ b/modules/datasets/dnsdb_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class DNSdbAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'DNSdbAPIQuery'
         self.addr = 'https://api.dnsdb.info/lookup/rrset/name/'
diff --git a/modules/datasets/dnsdumpster.py b/modules/datasets/dnsdumpster.py
index 4822db8..eebc4fd 100644
--- a/modules/datasets/dnsdumpster.py
+++ b/modules/datasets/dnsdumpster.py
@@ -4,7 +4,7 @@ from common.query import Query
 class DNSdumpster(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = "DNSdumpsterQuery"
         self.addr = 'https://dnsdumpster.com/'
diff --git a/modules/datasets/hackertarget.py b/modules/datasets/hackertarget.py
index 0bfd7e4..2dc75d8 100644
--- a/modules/datasets/hackertarget.py
+++ b/modules/datasets/hackertarget.py
@@ -4,7 +4,7 @@ from common.query import Query
 class HackerTarget(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = "HackerTargetQuery"
         self.addr = 'https://api.hackertarget.com/hostsearch/'
diff --git a/modules/datasets/ip138.py b/modules/datasets/ip138.py
index da1cc79..6c9d13a 100644
--- a/modules/datasets/ip138.py
+++ b/modules/datasets/ip138.py
@@ -4,7 +4,7 @@ from common.query import Query
 class IP138(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'IP138Query'
         self.addr = 'https://site.ip138.com/{domain}/domain.htm'
diff --git a/modules/datasets/ipv4info_api.py b/modules/datasets/ipv4info_api.py
index ad605b8..691b74d 100644
--- a/modules/datasets/ipv4info_api.py
+++ b/modules/datasets/ipv4info_api.py
@@ -6,7 +6,7 @@ from config.log import logger
 class IPv4InfoAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'IPv4InfoAPIQuery'
         self.addr = ' http://ipv4info.com/api_v1/'
diff --git a/modules/datasets/netcraft.py b/modules/datasets/netcraft.py
index de81156..9994a9f 100644
--- a/modules/datasets/netcraft.py
+++ b/modules/datasets/netcraft.py
@@ -9,7 +9,7 @@ from common.query import Query
 class NetCraft(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'NetCraftQuery'
         self.init = 'https://searchdns.netcraft.com/'
diff --git a/modules/datasets/passivedns_api.py b/modules/datasets/passivedns_api.py
index 987daba..70faf81 100644
--- a/modules/datasets/passivedns_api.py
+++ b/modules/datasets/passivedns_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class PassiveDnsAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'PassiveDnsQuery'
         self.addr = api.passivedns_api_addr or 'http://api.passivedns.cn'
diff --git a/modules/datasets/phonebook.py b/modules/datasets/phonebook.py
index 065dd83..df04346 100644
--- a/modules/datasets/phonebook.py
+++ b/modules/datasets/phonebook.py
@@ -5,7 +5,7 @@ from common.query import Query
 class PhoneBook(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'PhoneBookQuery'
 
diff --git a/modules/datasets/rapiddns.py b/modules/datasets/rapiddns.py
index 105be91..e77d64e 100644
--- a/modules/datasets/rapiddns.py
+++ b/modules/datasets/rapiddns.py
@@ -4,7 +4,7 @@ from common.query import Query
 class RapidDNS(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'RapidDNSQuery'
 
diff --git a/modules/datasets/riddler.py b/modules/datasets/riddler.py
index 8d21540..a39502c 100644
--- a/modules/datasets/riddler.py
+++ b/modules/datasets/riddler.py
@@ -4,7 +4,7 @@ from common.query import Query
 class Riddler(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'RiddlerQuery'
         self.addr = 'https://riddler.io/search'
diff --git a/modules/datasets/robtex.py b/modules/datasets/robtex.py
index 4358b02..aad33f9 100644
--- a/modules/datasets/robtex.py
+++ b/modules/datasets/robtex.py
@@ -7,7 +7,7 @@ from common.query import Query
 class Robtex(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = "RobtexQuery"
         self.addr = 'https://freeapi.robtex.com/pdns/'
diff --git a/modules/datasets/securitytrails_api.py b/modules/datasets/securitytrails_api.py
index 8b52bfb..d770b61 100644
--- a/modules/datasets/securitytrails_api.py
+++ b/modules/datasets/securitytrails_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class SecurityTrailsAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'SecurityTrailsAPIQuery'
         self.addr = 'https://api.securitytrails.com/v1/domain/'
diff --git a/modules/datasets/sitedossier.py b/modules/datasets/sitedossier.py
index 923160d..359d159 100644
--- a/modules/datasets/sitedossier.py
+++ b/modules/datasets/sitedossier.py
@@ -5,7 +5,7 @@ from common.query import Query
 class SiteDossier(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'SiteDossierQuery'
         self.addr = 'http://www.sitedossier.com/parentdomain/'
diff --git a/modules/datasets/sublist3r.py b/modules/datasets/sublist3r.py
index a96eb9b..ff5ade8 100644
--- a/modules/datasets/sublist3r.py
+++ b/modules/datasets/sublist3r.py
@@ -4,7 +4,7 @@ from common.query import Query
 class Sublist3r(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'Sublist3rQuery'
 
diff --git a/modules/datasets/threatcrowd.py b/modules/datasets/threatcrowd.py
index 523de7d..7cd064b 100644
--- a/modules/datasets/threatcrowd.py
+++ b/modules/datasets/threatcrowd.py
@@ -7,7 +7,7 @@ from config.log import logger
 class ThreatCrowd(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'ThreatCrowdQuery'
         self.addr = 'https://www.threatcrowd.org/searchApi' \
diff --git a/modules/datasets/wzpc.py b/modules/datasets/wzpc.py
index 5be8255..6788c0d 100644
--- a/modules/datasets/wzpc.py
+++ b/modules/datasets/wzpc.py
@@ -6,7 +6,7 @@ from common.query import Query
 class WZPCQuery(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'WZPCQuery'
 
diff --git a/modules/datasets/ximcx.py b/modules/datasets/ximcx.py
index 8e104f4..d8533b9 100644
--- a/modules/datasets/ximcx.py
+++ b/modules/datasets/ximcx.py
@@ -4,7 +4,7 @@ from common.query import Query
 class Ximcx(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Dataset'
         self.source = 'XimcxQuery'
         self.addr = 'http://sbd.ximcx.cn/DomainServlet'
diff --git a/modules/dnsquery/mx.py b/modules/dnsquery/mx.py
index b2a5514..ebbe69c 100644
--- a/modules/dnsquery/mx.py
+++ b/modules/dnsquery/mx.py
@@ -4,7 +4,7 @@ from common.lookup import Lookup
 class QueryMX(Lookup):
     def __init__(self, domain):
         Lookup.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'dnsquery'
         self.source = "QueryMX"
         self.type = 'MX'  # 利用的DNS记录的MX记录收集子域
diff --git a/modules/dnsquery/ns.py b/modules/dnsquery/ns.py
index b79e232..a44b4c3 100644
--- a/modules/dnsquery/ns.py
+++ b/modules/dnsquery/ns.py
@@ -4,7 +4,7 @@ from common.lookup import Lookup
 class QueryNS(Lookup):
     def __init__(self, domain):
         Lookup.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'dnsquery'
         self.source = "QueryNS"
         self.type = 'NS'  # 利用的DNS记录的NS记录收集子域
diff --git a/modules/dnsquery/soa.py b/modules/dnsquery/soa.py
index b688cfa..8aad164 100644
--- a/modules/dnsquery/soa.py
+++ b/modules/dnsquery/soa.py
@@ -4,7 +4,7 @@ from common.lookup import Lookup
 class QuerySOA(Lookup):
     def __init__(self, domain):
         Lookup.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'dnsquery'
         self.source = "QuerySOA"
         self.type = 'SOA'  # 利用的DNS记录的SOA记录收集子域
diff --git a/modules/dnsquery/spf.py b/modules/dnsquery/spf.py
index 8bc89d1..0d2d6ea 100644
--- a/modules/dnsquery/spf.py
+++ b/modules/dnsquery/spf.py
@@ -4,7 +4,7 @@ from common.lookup import Lookup
 class QuerySPF(Lookup):
     def __init__(self, domain):
         Lookup.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'dnsquery'
         self.source = "QuerySPF"
         self.type = 'SPF'  # 利用的DNS记录的SPF记录收集子域
diff --git a/modules/dnsquery/srv.py b/modules/dnsquery/srv.py
index fa29780..aa90fdc 100644
--- a/modules/dnsquery/srv.py
+++ b/modules/dnsquery/srv.py
@@ -14,7 +14,7 @@ from config.setting import data_storage_dir
 class BruteSRV(Module):
     def __init__(self, domain):
         Module.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'dnsquery'
         self.source = "BruteSRV"
         self.type = 'SRV'  # 利用的DNS记录的SRV记录查询子域
diff --git a/modules/dnsquery/txt.py b/modules/dnsquery/txt.py
index c7ce963..a016fcf 100644
--- a/modules/dnsquery/txt.py
+++ b/modules/dnsquery/txt.py
@@ -4,7 +4,7 @@ from common.lookup import Lookup
 class QueryTXT(Lookup):
     def __init__(self, domain):
         Lookup.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'dnsquery'
         self.source = "QueryTXT"
         self.type = 'TXT'  # 利用的DNS记录的TXT记录收集子域
diff --git a/modules/intelligence/alienvault.py b/modules/intelligence/alienvault.py
index ee2d8c8..fc592c8 100644
--- a/modules/intelligence/alienvault.py
+++ b/modules/intelligence/alienvault.py
@@ -4,7 +4,7 @@ from common.query import Query
 class AlienVault(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Intelligence'
         self.source = 'AlienVaultQuery'
 
diff --git a/modules/intelligence/riskiq_api.py b/modules/intelligence/riskiq_api.py
index 6ec320c..da4598f 100644
--- a/modules/intelligence/riskiq_api.py
+++ b/modules/intelligence/riskiq_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class RiskIQ(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Intelligence'
         self.source = 'RiskIQAPIQuery'
         self.addr = 'https://api.passivetotal.org/v2/enrichment/subdomains'
diff --git a/modules/intelligence/threatbook_api.py b/modules/intelligence/threatbook_api.py
index 87f1161..d2dc81b 100644
--- a/modules/intelligence/threatbook_api.py
+++ b/modules/intelligence/threatbook_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class ThreatBookAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Intelligence'
         self.source = 'ThreatBookAPIQuery'
         self.addr = 'https://api.threatbook.cn/v3/domain/sub_domains'
diff --git a/modules/intelligence/threatminer.py b/modules/intelligence/threatminer.py
index 98a2294..9c6c69e 100644
--- a/modules/intelligence/threatminer.py
+++ b/modules/intelligence/threatminer.py
@@ -4,7 +4,7 @@ from common.query import Query
 class ThreatMiner(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Intelligence'
         self.source = 'ThreatMinerQuery'
         self.addr = 'https://www.threatminer.org/getData.php'
diff --git a/modules/intelligence/virustotal.py b/modules/intelligence/virustotal.py
index 2307d9e..b2bfe0e 100644
--- a/modules/intelligence/virustotal.py
+++ b/modules/intelligence/virustotal.py
@@ -11,7 +11,7 @@ class VirusTotal(Query):
         self.source = 'VirusTotalQuery'
         self.module = 'Intelligence'
         self.addr = 'https://www.virustotal.com/ui/domains/{}/subdomains'
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
 
     def query(self):
         """
diff --git a/modules/intelligence/virustotal_api.py b/modules/intelligence/virustotal_api.py
index 93649b4..3f03a81 100644
--- a/modules/intelligence/virustotal_api.py
+++ b/modules/intelligence/virustotal_api.py
@@ -5,7 +5,7 @@ from common.query import Query
 class VirusTotalAPI(Query):
     def __init__(self, domain):
         Query.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Intelligence'
         self.source = 'VirusTotalAPIQuery'
         self.addr = 'https://www.virustotal.com/vtapi/v2/domain/report'
diff --git a/modules/search/gitee.py b/modules/search/gitee.py
index 9eef654..028b402 100644
--- a/modules/search/gitee.py
+++ b/modules/search/gitee.py
@@ -10,7 +10,7 @@ class Gitee(Search):
         self.source = 'GiteeSearch'
         self.module = 'Search'
         self.addr = 'https://search.gitee.com/'
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.header = self.get_header()
 
     def search(self, full_search=False):
diff --git a/modules/search/github_api.py b/modules/search/github_api.py
index 3559d8b..713f8c5 100644
--- a/modules/search/github_api.py
+++ b/modules/search/github_api.py
@@ -10,7 +10,7 @@ class GithubAPI(Search):
         self.source = 'GithubAPISearch'
         self.module = 'Search'
         self.addr = 'https://api.github.com/search/code'
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.session = requests.Session()
         self.auth_url = 'https://api.github.com'
         self.token = api.github_api_token
diff --git a/modules/search/shodan_api.py b/modules/search/shodan_api.py
index 909462b..37def1e 100644
--- a/modules/search/shodan_api.py
+++ b/modules/search/shodan_api.py
@@ -5,7 +5,7 @@ from common.search import Search
 class ShodanAPI(Search):
     def __init__(self, domain):
         Search.__init__(self)
-        self.domain = self.get_maindomain(domain)
+        self.domain = domain
         self.module = 'Search'
         self.source = 'ShodanAPISearch'
         self.addr = 'https://api.shodan.io/shodan/host/search'