diff --git a/src/api/http-error.test.ts b/src/api/http-error.test.ts
index 975f98d..190dd6c 100644
--- a/src/api/http-error.test.ts
+++ b/src/api/http-error.test.ts
@@ -3,6 +3,6 @@ import { useMockedUrlFetchApp } from '~/api/test-helper'
 
 test('HttpError', () => {
   const res = useMockedUrlFetchApp(403, '{"message": "Forbidden"}')()
-  const error = new HttpError(res)
+  const error = new HttpError('https://example.com', res)
   expect(error instanceof HttpError).toBeTruthy()
 })
diff --git a/src/api/http-error.ts b/src/api/http-error.ts
index 6e6e637..2d183b4 100644
--- a/src/api/http-error.ts
+++ b/src/api/http-error.ts
@@ -2,9 +2,11 @@ export class HttpError implements Error {
   public name = 'HttpError'
   public message: string
 
-  // eslint-disable-next-line @typescript-eslint/camelcase
-  constructor(public response: GoogleAppsScript.URL_Fetch.HTTPResponse) {
-    this.message = `${response.getResponseCode()}: ${response.getContentText()}`
+  constructor(
+    public url: string,
+    public response: GoogleAppsScript.URL_Fetch.HTTPResponse // eslint-disable-line @typescript-eslint/camelcase
+  ) {
+    this.message = `${url} - ${response.getResponseCode()}: ${response.getContentText()}`
   }
 
   public isInvalidTestingRequest(): boolean {
diff --git a/src/api/v2/client.test.ts b/src/api/v2/client.test.ts
index c6c3a2d..0d6f1d5 100644
--- a/src/api/v2/client.test.ts
+++ b/src/api/v2/client.test.ts
@@ -11,11 +11,11 @@ test('HttpError#isInvalidTestingRequest', () => {
     200,
     '{"message":"Testing Apikey is only allowed to ticker ending with \\"01\\""}'
   )()
-  const error1 = new HttpError(res1)
+  const error1 = new HttpError('https://example.com', res1)
   expect(error1.isInvalidTestingRequest()).toBeTruthy()
 
   const res2 = useMockedUrlFetchApp(403, '{"message": "Forbidden"}')()
-  const error2 = new HttpError(res2)
+  const error2 = new HttpError('https://example.com', res2)
   expect(error2.isInvalidTestingRequest()).toBeFalsy()
 })
 
diff --git a/src/api/v2/client.ts b/src/api/v2/client.ts
index cfcc112..461da63 100644
--- a/src/api/v2/client.ts
+++ b/src/api/v2/client.ts
@@ -16,7 +16,7 @@ export class BuffettCodeApiClientV2 {
 
     const code = res.getResponseCode()
     const content = res.getContentText()
-    const error = new HttpError(res)
+    const error = new HttpError(url, res)
     if (
       Math.floor(code / 100) === 4 ||
       Math.floor(code / 100) === 5 ||
@@ -29,8 +29,8 @@ export class BuffettCodeApiClientV2 {
     try {
       json = JSON.parse(content)
     } catch (e) {
-      console.error('JSON parsing error', code, content)
-      throw new HttpError(res)
+      console.error('JSON parsing error', url, code, content)
+      throw new HttpError(url, res)
     }
 
     return json
diff --git a/src/api/v3/client.test.ts b/src/api/v3/client.test.ts
index de41dae..91cda2e 100644
--- a/src/api/v3/client.test.ts
+++ b/src/api/v3/client.test.ts
@@ -18,11 +18,11 @@ describe('BuffettCodeApiClientV3', () => {
       200,
       '{"message":"Testing apikey is not allowed"}'
     )()
-    const error1 = new HttpError(res1)
+    const error1 = new HttpError('https://example.com', res1)
     expect(error1.isInvalidTestingRequest()).toBeTruthy()
 
     const res2 = useMockedUrlFetchApp(403, '{"message": "Forbidden"}')()
-    const error2 = new HttpError(res2)
+    const error2 = new HttpError('https://example.com', res2)
     expect(error2.isInvalidTestingRequest()).toBeFalsy()
   })
 
diff --git a/src/api/v3/client.ts b/src/api/v3/client.ts
index 8d1e49b..3f10b68 100644
--- a/src/api/v3/client.ts
+++ b/src/api/v3/client.ts
@@ -21,7 +21,7 @@ export class BuffettCodeApiClientV3 {
 
     const code = res.getResponseCode()
     const content = res.getContentText()
-    const error = new HttpError(res)
+    const error = new HttpError(url, res)
     if (
       Math.floor(code / 100) === 4 ||
       Math.floor(code / 100) === 5 ||
@@ -34,8 +34,8 @@ export class BuffettCodeApiClientV3 {
     try {
       json = JSON.parse(content)
     } catch (e) {
-      console.error('JSON parsing error', code, content)
-      throw new HttpError(res)
+      console.error('JSON parsing error', url, code, content)
+      throw new HttpError(url, res)
     }
 
     return json
diff --git a/src/fiscal-periods/year-quarter-param.ts b/src/fiscal-periods/year-quarter-param.ts
index 70ad52e..48003e2 100644
--- a/src/fiscal-periods/year-quarter-param.ts
+++ b/src/fiscal-periods/year-quarter-param.ts
@@ -8,11 +8,11 @@ import { YearQuarter } from '~/fiscal-periods/year-quarter'
 export class YearQuarterParam {
   constructor(public year: number | 'LY', public quarter: number | 'LQ') {
     if (!this.isLatestYear() && year < 1) {
-      throw new InvalidYearError()
+      throw new InvalidYearError(`Invalid year value: ${year}`)
     }
 
     if (!this.isLatestQuarter() && (quarter < 1 || quarter > 4)) {
-      throw new InvalidQuarterError()
+      throw new InvalidQuarterError(`Invalid quarter value: ${quarter}`)
     }
   }
 
diff --git a/src/fiscal-periods/year-quarter.ts b/src/fiscal-periods/year-quarter.ts
index 48b8b1e..5333071 100644
--- a/src/fiscal-periods/year-quarter.ts
+++ b/src/fiscal-periods/year-quarter.ts
@@ -3,11 +3,11 @@ import { InvalidYearError, InvalidQuarterError } from '~/fiscal-periods/error'
 export class YearQuarter {
   constructor(public year: number, public quarter: number) {
     if (year < 1) {
-      throw new InvalidYearError()
+      throw new InvalidYearError(`Invalid year value: ${year}`)
     }
 
     if (quarter < 1 || quarter > 4) {
-      throw new InvalidQuarterError()
+      throw new InvalidQuarterError(`Invalid quarter value: ${quarter}`)
     }
   }