diff --git a/malicious-sites/canonicalization/tests.json b/malicious-sites/canonicalization/tests.json
new file mode 100644
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+++ b/malicious-sites/canonicalization/tests.json
@@ -0,0 +1,177 @@
+{
+    "domains": {
+        "name": "Domain Canonicalization",
+        "desc": "Domain Canonicalization - tests provide input URI, with expected output",
+        "tests": [
+            {
+                "name": "Simple domain - extract hostname portion from the URL",
+                "siteURL": "http://www.somesite.com",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Simple domain with a port",
+                "siteURL": "http://www.somesite.com:8000/",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Simple domain with a username",
+                "siteURL": "http://user:pass@www.somesite.com",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Simple domain with a fragment",
+                "siteURL": "http://www.somesite.com#fragment",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Simple domain with a query string",
+                "siteURL": "http://www.somesite.com?some=value",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Decode any %XX escapes present in the hostname",
+                "siteURL": "http://www.%73ome%73ite.com",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Discard any leading and/or trailing full-stops",
+                "siteURL": "http://.www.somesite.com.",
+                "expectDomain": "www.somesite.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Replace sequences of two or more full-stops with a single full-stop.",
+                "siteURL": "http://www..example...com",
+                "expectDomain": "www.example.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "If the hostname is a numeric IPv4 address, reduce it to the canonical dotted quad form.",
+                "siteURL": "http://192.168.000.001:8000/",
+                "expectDomain": "192.168.0.1",
+                "exceptPlatforms": []
+            },                        
+            {
+                "name": "If there are more than six components in the resulting hostname, discard all but the rightmost six components.",
+                "siteURL": "http://a.b.c.d.e.f.g.h.i.j.example.com",
+                "expectDomain": "g.h.i.j.example.com",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "If the hostname is a numeric IPv4 address, reduce it to the canonical dotted quad form.",
+                "siteURL": "http://192.168.001.001:8080/",
+                "expectDomain": "192.168.1.1",
+                "exceptPlatforms": []
+            }            
+        ]
+    },
+    "urls": {
+        "name": "URL Canonicalization",
+        "desc": "URL Canonicalization - tests provide input URI, with expected output",
+        "tests": [
+            {
+                "name": "Remove any fragments (#frag)",
+                "siteURL": "https://broken.third-party.site/path/to/resource#fragment",
+                "expectUrl": "https://broken.third-party.site/path/to/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Remove all trailing slashes, but keep any single slash after the domain - with path",
+                "siteURL": "https://broken.third-party.site/path/to/resource/",
+                "expectUrl": "https://broken.third-party.site/path/to/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Remove all trailing slashes, but keep any single slash after the domain - domain only",
+                "siteURL": "https://broken.third-party.site/",
+                "expectUrl": "https://broken.third-party.site/",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Add trailing slash after domain",
+                "siteURL": "https://broken.third-party.site",
+                "expectUrl": "https://broken.third-party.site/",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Path Canonicalization - Resolve all occurences of '../' in the path",
+                "siteURL": "https://broken.third-party.site/path/to/../resource",
+                "expectUrl": "https://broken.third-party.site/path/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Path Canonicalization - Replace all occurrences of more than one '/' with just one '/', excluding the protocol",
+                "siteURL": "https://broken.third-party.site//path//to//resource",
+                "expectUrl": "https://broken.third-party.site/path/to/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Path Canonicalization - Remove all occurrences of './' in the path",
+                "siteURL": "https://broken.third-party.site/path/./to/./resource",
+                "expectUrl": "https://broken.third-party.site/path/to/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Percent-escape all characters that are <= ASCII 32, >= 127, '#', or '%'. The escapes should use uppercase hex characters.",
+                "siteURL": "https://broken.third-party.site/path!resource",
+                "expectUrl": "https://broken.third-party.site/path%21resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Space canonicalization",
+                "siteURL": "https://broken.third-party.site/path/to/resource with%20some+spaces",
+                "expectUrl": "https://broken.third-party.site/path/to/resource%20with%20some%20spaces",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Slash canonicalization and removal",
+                "siteURL": "https://broken.third-party.site/path/to/%2F%2F%2F%2F%2F%2F%2F%2F%2F",
+                "expectUrl": "https://broken.third-party.site/path/to",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Period canonicalization and removal",
+                "siteURL": "https://broken.third-party.site/path/to/%2E%2E/%2E%2E/resource",
+                "expectUrl": "https://broken.third-party.site/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Encoded fragment character",
+                "siteURL": "https://broken.third-party.site/path/to/resource%23encodedfragment",
+                "expectUrl": "https://broken.third-party.site/path/to/resource%23encodedfragment",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Resolve mixed occurences of '../' and './' in the path",
+                "siteURL": "https://broken.third-party.site/path/to/./.././resource",
+                "expectUrl": "https://broken.third-party.site/path/resource",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "The escapes should use uppercase hex characters",
+                "siteURL": "https://broken.third-party.site/path%3c",
+                "expectUrl": "https://broken.third-party.site/path%3C",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Do not apply path canonicalizations to query parameters",
+                "siteURL": "https://broken.third-party.site/path?q=a/../path/./",
+                "expectUrl": "https://broken.third-party.site/path?q=a/../path/./",
+                "exceptPlatforms": []
+            },
+            {
+                "name": "Escape ASCII >= 127",
+                "siteURL": "https://broken.third-party.site/path/žebērklis/to",
+                "expectUrl": "https://broken.third-party.site/path/%C5%BEeb%C4%93rklis/to",
+                "exceptPlatforms": []
+            }
+        ]
+    }
+}
+            
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