diff --git a/packages/core/examples/tds/invalid/typoCheckWithTypos.json b/packages/core/examples/tds/typo/typoCheckWithTypos.json
similarity index 88%
rename from packages/core/examples/tds/invalid/typoCheckWithTypos.json
rename to packages/core/examples/tds/typo/typoCheckWithTypos.json
index 2c4bcb857..18ea25854 100644
--- a/packages/core/examples/tds/invalid/typoCheckWithTypos.json
+++ b/packages/core/examples/tds/typo/typoCheckWithTypos.json
@@ -1,9 +1,9 @@
 {
     "id2": "urn:typoCheck",
-    "x@context":"https://www.w3.org/2022/wot/td/v1.1",
+    "@context":"https://www.w3.org/2022/wot/td/v1.1",
     "title": "MyLampThing",
     "description":"Valid TD demonstrating how to use security in interaction level by overwriting the root level security",
-    "securityDefinitins": {
+    "securityDefinitions": {
         "basic_sc": {
             "scheme": "basic",
             "in": "header"
@@ -15,7 +15,7 @@
             "scheme": "nosec"
         }
     },
-    "securityuu": ["basic_sc"],
+    "security": ["basic_sc"],
     "propeRties": {
         "status" : {
             "type": "string",
@@ -42,5 +42,6 @@
                 "security": ["nosec_sc"]
             }]
         }
-    }
+    },
+    "typoCount": 4
 }
\ No newline at end of file
diff --git a/packages/core/examples/tds/valid/typoCheckWithoutTypos.json b/packages/core/examples/tds/typo/typoCheckWithoutTypos.json
similarity index 97%
rename from packages/core/examples/tds/valid/typoCheckWithoutTypos.json
rename to packages/core/examples/tds/typo/typoCheckWithoutTypos.json
index 83719a4e6..58d56a7e3 100644
--- a/packages/core/examples/tds/valid/typoCheckWithoutTypos.json
+++ b/packages/core/examples/tds/typo/typoCheckWithoutTypos.json
@@ -42,5 +42,6 @@
                 "security": ["nosec_sc"]
             }]
         }
-    }
+    },
+    "typoCount": 0
 }
\ No newline at end of file
diff --git a/packages/core/index.js b/packages/core/index.js
index d8b3593fc..c81f4d19d 100644
--- a/packages/core/index.js
+++ b/packages/core/index.js
@@ -953,13 +953,12 @@ const PROPERTIES = "properties"
 const ADDITONAL_PROPERTIES = "additional_properties"
 const DATA_SCHEMA = "dataSchema"
 const PATH = "#/"
-const JSON_SCHEMA = require('./td-schema.json')
-const TYPO_LOOKUP_TABLE = createSchemaLookupTable(JSON_SCHEMA)
+const TYPO_LOOKUP_TABLE = createSchemaLookupTable(tdSchema)
 
 /**
  * Checks possible typos in a TD
  * @param {object} td The TD to apply typo check on
- * @returns List of possible typos
+ * @returns List of possible typos where the typo consists of string value of typo itself and the message, another string value, to be prompted to the user for the fix 
  */
  function checkTypos(td) {
     const typos = []
@@ -1061,7 +1060,7 @@ function findPathsInSchema(lookupTable, schema, path) {
             path = 'r' + path
         }
 
-        findPathsInSchema(getRefObjectOfSchema(JSON_SCHEMA, schema[REF]), path)
+        findPathsInSchema(getRefObjectOfSchema(tdSchema, schema[REF]), path)
         return
     }
 
@@ -1078,7 +1077,7 @@ function findPathsInSchema(lookupTable, schema, path) {
                         path = 'r' + path
                     }
 
-                    findPathsInSchema(getRefObjectOfSchema(JSON_SCHEMA, properties[key]), path)
+                    findPathsInSchema(getRefObjectOfSchema(tdSchema, properties[key]), path)
                     return
                 } else {
                     findPathsInSchema(properties[key], `${path}${key}/`)
@@ -1099,7 +1098,7 @@ function findPathsInSchema(lookupTable, schema, path) {
                         path = 'r' + path
                     }
 
-                    findPathsInSchema(getRefObjectOfSchema(JSON_SCHEMA, additionalProperties[key]), `${path}*/`)
+                    findPathsInSchema(getRefObjectOfSchema(tdSchema, additionalProperties[key]), `${path}*/`)
                     return
                 }
             }
@@ -1122,7 +1121,7 @@ function findPathsInSchema(lookupTable, schema, path) {
                         path = 'r' + path
                     }
 
-                    findPathsInSchema(getRefObjectOfSchema(JSON_SCHEMA, items[item]), path)
+                    findPathsInSchema(getRefObjectOfSchema(tdSchema, items[item]), path)
                     return
                 }
             }
@@ -1187,8 +1186,11 @@ function getRefObjectOfSchema(schema, ref) {
     return result
 }
 
+// Minimum similarity value to be able to say that two words are similar
 const SIMILARITY_THRESHOLD = 0.85
-const LENGTH_DIFFERENCE_THRESHOLD = 2
+
+// Maximum value of length difference between two words
+const MAX_LENGTH_DIFFERENCE = 2
 
 /**
  * Checks whether typo exists or not by comparing similarity of the two words
@@ -1197,7 +1199,7 @@ const LENGTH_DIFFERENCE_THRESHOLD = 2
  * @returns Boolean value that tell whether typo exists or not
  */
 function doesTypoExist(actual, desired) {
-  if (Math.abs(actual.length - desired.length) > LENGTH_DIFFERENCE_THRESHOLD) {
+  if (Math.abs(actual.length - desired.length) > MAX_LENGTH_DIFFERENCE) {
     return false
   }
 
diff --git a/packages/core/tests/examples-typo.test.js b/packages/core/tests/examples-typo.test.js
new file mode 100644
index 000000000..86fb012c4
--- /dev/null
+++ b/packages/core/tests/examples-typo.test.js
@@ -0,0 +1,43 @@
+const fs = require("fs")
+const path = require("path")
+const { checkTypos } = require("../index")
+const tdValidator = require("../index").tdValidator
+
+const rootDir = path.join("./", "examples", "tds")
+
+const dirPath = path.join(rootDir, "typo")
+const fileNames = fs.readdirSync(dirPath)
+const refResult = {
+    report: {
+        json: 'passed',
+        schema: 'passed',
+        defaults: expect.stringMatching(/warning|passed/),
+        jsonld: 'passed',
+        additional: expect.stringMatching(/warning|passed/)
+    },
+    details: {
+        enumConst: expect.stringMatching(/failed|warning|passed/),
+        propItems: expect.stringMatching(/failed|warning|passed/),
+        security: expect.stringMatching(/failed|warning|passed/),
+        propUniqueness: expect.stringMatching(/failed|warning|passed/),
+        multiLangConsistency: expect.stringMatching(/failed|warning|passed/),
+        linksRelTypeCount: expect.stringMatching(/failed|warning|passed/),
+        readWriteOnly: expect.stringMatching(/failed|warning|passed/),
+        uriVariableSecurity: expect.stringMatching(/failed|warning|passed/)
+    },
+    detailComments: expect.any(Object)
+}
+fileNames.forEach( fileName => {
+    test(fileName, done => {
+    fs.readFile(path.join(dirPath, fileName), "utf-8", (err, tdToTest) => {
+            if (err) {done(err)}
+            tdValidator(tdToTest, ()=>{},{}).then( result => {
+                expect(result).toEqual(refResult)
+                const tdJson = JSON.parse(tdToTest)
+                const typoCount = tdJson['typoCount']
+                expect(checkTypos(tdToTest).length).toEqual(typoCount)
+                done()
+            }, errTwo => {done(errTwo)})
+        })
+    })
+})
diff --git a/packages/web/util.js b/packages/web/util.js
index f442efb3b..b2e7aac08 100644
--- a/packages/web/util.js
+++ b/packages/web/util.js
@@ -321,12 +321,12 @@ export function getExamplesList(docType){
                 "type": "invalid"
             },
             "TypoCheckWithoutTypos": {
-                "addr": "./node_modules/@thing-description-playground/core/examples/tds/valid/typoCheckWithoutTypos.json",
+                "addr": "./node_modules/@thing-description-playground/core/examples/tds/typo/typoCheckWithoutTypos.json",
                 "type": "valid"
             },
             "TypoCheckWithTypos": {
-                "addr": "./node_modules/@thing-description-playground/core/examples/tds/invalid/typoCheckWithTypos.json",
-                "type": "warning"
+                "addr": "./node_modules/@thing-description-playground/core/examples/tds/typo/typoCheckWithTypos.json",
+                "type": "valid"
             }
         }
         : {