diff --git a/searx/tagprivacyviolators.py b/searx/tagprivacyviolators.py
new file mode 100644
index 00000000..d020f726
--- /dev/null
+++ b/searx/tagprivacyviolators.py
@@ -0,0 +1,225 @@
+import socket
+import ipwhois
+from searx import logger
+
+ASN_PRIVACY = {
+    # Akamai
+    "55770": "Akami",
+    "55409": "Akami",
+    "49846": "Akami",
+    "49249": "Akami",
+    "48163": "Akami",
+    "45700": "Akami",
+    "43639": "Akami",
+    "39836": "Akami",
+    "393560": "Akami",
+    "393234": "Akami",
+    "36183": "Akami",
+    "36029": "Akami",
+    "35994": "Akami",
+    "35993": "Akami",
+    "35204": "Akami",
+    "34850": "Akami",
+    "34164": "Akami",
+    "33905": "Akami",
+    "32787": "Akami",
+    "31377": "Akami",
+    "31110": "Akami",
+    "31109": "Akami",
+    "31108": "Akami",
+    "31107": "Akami",
+    "30675": "Akami",
+    "26008": "Akami",
+    "24319": "Akami",
+    "23903": "Akami",
+    "23455": "Akami",
+    "23454": "Akami",
+    "22452": "Akami",
+    "22207": "Akami",
+    "21399": "Akami",
+    "21357": "Akami",
+    "21342": "Akami",
+    "20940": "Akami",
+    "20189": "Akami",
+    "18717": "Akami",
+    "18680": "Akami",
+    "17334": "Akami",
+    "16702": "Akami",
+    "16625": "Akami",
+    "12222": "Akami",
+    # Alibaba
+    "45104": "Alibaba",
+    "45103": "Alibaba",
+    "45102": "Alibaba",
+    "45096": "Alibaba",
+    "37963": "Alibaba",
+    "34947": "Alibaba",
+    "134963": "Alibaba",
+    # Amazon
+    "9059": "Amazon",
+    "8987": "Amazon",
+    "7224": "Amazon",
+    "62785": "Amazon",
+    "58588": "Amazon",
+    "395343": "Amazon",
+    "39111": "Amazon",
+    "38895": "Amazon",
+    "264167": "Amazon",
+    "19047": "Amazon",
+    "17493": "Amazon",
+    "16509": "Amazon",
+    "14618": "Amazon",
+    "135630": "Amazon",
+    "10124": "Amazon",
+    # Aryaka Networks, Inc
+    "11179": "Aryaka Networks",
+    # Azure
+    "53587": "Azure",
+    "24221": "Azure",
+    "134235": "Azure",
+    # Cloudflare
+    "395747": "Cloudflare",
+    "394536": "Cloudflare",
+    "209242": "Cloudflare",
+    "203898": "Cloudflare",
+    "202623": "Cloudflare",
+    "14789": "Cloudflare",
+    "139242": "Cloudflare",
+    "133877": "Cloudflare",
+    "13335": "Cloudflare",
+    # CDNetworks Inc
+    "43303":"CDNetworks",
+    "40366":"CDNetworks",
+    "38670":"CDNetworks",
+    "38107":"CDNetworks",
+    "36408":"CDNetworks",
+    "204720":"CDNetworks",
+    # EdgeCast Networks, Inc. d/b/a Verizon Digital Media Services
+    "15133": "EdgeCast Networks",
+    # Highwinds Network Group, Inc.
+    "33438": "Highwinds Network",
+    "29798": "Highwinds Network",
+    "20446": "Highwinds Network",
+    "18607": "Highwinds Network",
+    "11588": "Highwinds Network",
+    # Incapsula Inc
+    "19551": "Incapsula",
+    # Instart Logic, Inc
+    "33047": "Instant Logics",
+    "133103": "Instant Logics",
+    "6993": "Instant Logics",
+    "55755": "Instant Logics",
+    "48910": "Instant Logics",
+    "4513": "Instant Logics",
+    "30637": "Instant Logics",
+    "30636": "Instant Logics",
+    "30282": "Instant Logics",
+    "29791": "Instant Logics",
+    "24295": "Instant Logics",
+    "24247": "Instant Logics",
+    "24246": "Instant Logics",
+    "24245": "Instant Logics",
+    "22212": "Instant Logics",
+    "22211": "Instant Logics",
+    "22132": "Instant Logics",
+    "19024": "Instant Logics",
+    "17675": "Instant Logics",
+    "15570": "Instant Logics",
+    "15421": "Instant Logics",
+    "14745": "Instant Logics",
+    "14744": "Instant Logics",
+    "14743": "Instant Logics",
+    "14742": "Instant Logics",
+    "14636": "Instant Logics",
+    "13890": "Instant Logics",
+    "13792": "Instant Logics",
+    "13791": "Instant Logics",
+    "13790": "Instant Logics",
+    "13789": "Instant Logics",
+    "12182": "Instant Logics",
+    "12181": "Instant Logics",
+    "12180": "Instant Logics",
+    "12179": "Instant Logics",
+    "12178": "Instant Logics",
+    "11855": "Instant Logics",
+    "11854": "Instant Logics",
+    "11853": "Instant Logics",
+    "10913": "Instant Logics",
+    "10912": "Instant Logics",
+    "10911": "Instant Logics",
+    "10910": "Instant Logics",
+    # Fastly
+    "54113": "Fastly",
+    "394192": "Fastly",
+    # Google
+    "45566": "Google",
+    "43515": "Google",
+    "41264": "Google",
+    "40873": "Google",
+    "396982": "Google",
+    "395973": "Google",
+    "394699": "Google",
+    "394639": "Google",
+    "394507": "Google",
+    "36987": "Google",
+    "36492": "Google",
+    "36385": "Google",
+    "36384": "Google",
+    "36040": "Google",
+    "36039": "Google",
+    "26910": "Google",
+    "26684": "Google",
+    "22859": "Google",
+    "22577": "Google",
+    "19527": "Google",
+    "16550": "Google",
+    "15169": "Google",
+    "13949": "Google",
+    "139190": "Google",
+    "139070": "Google",
+    # Limelight
+    "60261": "Limelight",
+    "55429": "Limelight",
+    "45396": "Limelight",
+    "38622": "Limelight",
+    "38621": "Limelight",
+    "37277": "Limelight",
+    "27191": "Limelight",
+    "26506": "Limelight",
+    "25804": "Limelight",
+    "23164": "Limelight",
+    "23135": "Limelight",
+    "23059": "Limelight",
+    "22822": "Limelight",
+    "12411": "Limelight",
+    # Yottaa, Inc
+    "393259": "Yottaa",
+}
+
+class TagPrivacyViolators:
+    """ Tags websites that violate user's privacy. """
+    def __init__(self):
+        self.cache = {}
+    def find_privacy_violators(self,results):
+        """ Finds websites that violate privacy through querying whois and looking up their asn value. """
+        tagged_websites = {}
+        for result in results:
+            logger.debug('cache: %s',', '.join(self.cache))
+            if result['parsed_url'].netloc in self.cache:
+                logger.info("%s is in cache",result['url'])
+                tagged_websites[result['url']] = self.cache.get(result['parsed_url'].netloc)
+                continue
+            try:
+                ipwhois_obj = ipwhois.IPWhois(
+                    socket.gethostbyname(
+                        result['parsed_url'].netloc
+                    ),timeout=2
+                )
+                answer = ipwhois_obj.lookup_rdap()
+                asn_value = ASN_PRIVACY.get(answer['asn'])
+            except Exception as e:
+                logger.error(e)
+            if asn_value:
+                tagged_websites[result['url']] = asn_value
+                self.cache[result['parsed_url'].netloc] = asn_value
+        return tagged_websites