diff --git a/packages/headers/CHANGELOG.md b/packages/headers/CHANGELOG.md
index 84255ec..fb35713 100644
--- a/packages/headers/CHANGELOG.md
+++ b/packages/headers/CHANGELOG.md
@@ -132,7 +132,10 @@ header.getPreferred(['gzip', 'deflate']); // 'gzip'
   - `acceptEncoding`
   - `acceptRanges`
   - `connection`
+  - `contentEncoding`
+  - `contentLanguage`
   - `host`
+  - `location`
   - `referer`
 
 ## v0.8.0 (2024-11-14)
diff --git a/packages/headers/README.md b/packages/headers/README.md
index 44040aa..87dd4dc 100644
--- a/packages/headers/README.md
+++ b/packages/headers/README.md
@@ -28,8 +28,8 @@ let headers = new Headers();
 headers.accept = { 'text/html': 1, 'text/*': 0.9 };
 // or headers.accept = 'text/html,text/*;q=0.9';
 
-console.log(headers.accept.mediaTypes); // [ 'text/html', 'text/*' ]
-console.log(Object.fromEntries(headers.accept.entries())); // { 'text/html': 1, 'text/*': 0.9 }
+headers.accept.mediaTypes; // [ 'text/html', 'text/*' ]
+Object.fromEntries(headers.accept.entries()); // { 'text/html': 1, 'text/*': 0.9 }
 
 headers.accept.accepts('text/html'); // true
 headers.accept.accepts('text/plain'); // true
@@ -40,7 +40,7 @@ headers.accept.getPreferred(['text/plain', 'text/html']); // 'text/html'
 headers.accept.set('text/plain', 0.9);
 headers.accept.set('text/*', 0.8);
 
-console.log(headers.get('Accept')); // "text/html,text/plain;q=0.9,text/*;q=0.8"
+headers.get('Accept'); // 'text/html,text/plain;q=0.9,text/*;q=0.8'
 
 // Accept-Encoding
 headers.acceptEncoding = { gzip: 1, deflate: 0.8 };
@@ -55,8 +55,8 @@ headers.acceptEncoding.getPreferred(['gzip', 'deflate']); // 'gzip'
 headers.acceptLanguage = { 'en-US': 1, en: 0.9 };
 // or headers.acceptLanguage = 'en-US,en;q=0.9';
 
-console.log(headers.acceptLanguage.languages); // [ 'en-us', 'en' ]
-console.log(Object.fromEntries(headers.acceptLanguage.entries())); // { 'en-us': 1, en: 0.9 }
+headers.acceptLanguage.languages; // [ 'en-us', 'en' ]
+Object.fromEntries(headers.acceptLanguage.entries()); // { 'en-us': 1, en: 0.9 }
 
 headers.acceptLanguage.accepts('en'); // true
 headers.acceptLanguage.accepts('ja'); // false
@@ -73,51 +73,58 @@ headers.connection = 'close';
 // Content-Type
 headers.contentType = 'application/json; charset=utf-8';
 
-console.log(headers.contentType.mediaType); // "application/json"
-console.log(headers.contentType.charset); // "utf-8"
+headers.contentType.mediaType; // "application/json"
+headers.contentType.charset; // "utf-8"
 
 headers.contentType.charset = 'iso-8859-1';
 
-console.log(headers.get('Content-Type')); // "application/json; charset=iso-8859-1"
+headers.get('Content-Type'); // "application/json; charset=iso-8859-1"
 
 // Content-Disposition
 headers.contentDisposition =
   'attachment; filename="example.pdf"; filename*=UTF-8\'\'%E4%BE%8B%E5%AD%90.pdf';
 
-console.log(headers.contentDisposition.type); // 'attachment'
-console.log(headers.contentDisposition.filename); // 'example.pdf'
-console.log(headers.contentDisposition.filenameSplat); // 'UTF-8\'\'%E4%BE%8B%E5%AD%90.pdf'
-console.log(headers.contentDisposition.preferredFilename); // '例子.pdf'
+headers.contentDisposition.type; // 'attachment'
+headers.contentDisposition.filename; // 'example.pdf'
+headers.contentDisposition.filenameSplat; // 'UTF-8\'\'%E4%BE%8B%E5%AD%90.pdf'
+headers.contentDisposition.preferredFilename; // '例子.pdf'
 
 // Cookie
 headers.cookie = 'session_id=abc123; user_id=12345';
 
-console.log(headers.cookie.get('session_id')); // 'abc123'
-console.log(headers.cookie.get('user_id')); // '12345'
+headers.cookie.get('session_id'); // 'abc123'
+headers.cookie.get('user_id'); // '12345'
 
 headers.cookie.set('theme', 'dark');
-console.log(headers.get('Cookie')); // 'session_id=abc123; user_id=12345; theme=dark'
+headers.get('Cookie'); // 'session_id=abc123; user_id=12345; theme=dark'
 
 // Host
 headers.host = 'example.com';
 
+// Last-Modified
+headers.lastModified = new Date();
+// or headers.lastModified = new Date().getTime();
+headers.get('Last-Modified'); // 'Fri, 20 Dec 2024 08:08:05 GMT'
+
+// Location
+headers.location = 'https://example.com';
+
 // Referer
 headers.referer = 'https://example.com/';
 
 // Set-Cookie
 headers.setCookie = ['session_id=abc123; Path=/; HttpOnly'];
 
-console.log(headers.setCookie[0].name); // 'session_id'
-console.log(headers.setCookie[0].value); // 'abc123'
-console.log(headers.setCookie[0].path); // '/'
-console.log(headers.setCookie[0].httpOnly); // true
+headers.setCookie[0].name; // 'session_id'
+headers.setCookie[0].value; // 'abc123'
+headers.setCookie[0].path; // '/'
+headers.setCookie[0].httpOnly; // true
 
 // Modifying Set-Cookie attributes
 headers.setCookie[0].maxAge = 3600;
 headers.setCookie[0].secure = true;
 
-console.log(headers.get('Set-Cookie'));
-// session_id=abc123; Path=/; HttpOnly; Max-Age=3600; Secure
+headers.get('Set-Cookie'); // 'session_id=abc123; Path=/; HttpOnly; Max-Age=3600; Secure'
 
 // Setting multiple cookies is easy, it's just an array
 headers.setCookie.push('user_id=12345; Path=/api; Secure');
diff --git a/packages/headers/src/lib/super-headers.test.ts b/packages/headers/src/lib/super-headers.test.ts
index f34b426..a32ef33 100644
--- a/packages/headers/src/lib/super-headers.test.ts
+++ b/packages/headers/src/lib/super-headers.test.ts
@@ -200,6 +200,16 @@ describe('SuperHeaders', () => {
       assert.equal(headers.get('Content-Disposition'), 'attachment; filename=example.txt');
     });
 
+    it('handles the contentEncoding property', () => {
+      let headers = new SuperHeaders({ contentEncoding: 'gzip' });
+      assert.equal(headers.get('Content-Encoding'), 'gzip');
+    });
+
+    it('handles the contentLanguage property', () => {
+      let headers = new SuperHeaders({ contentLanguage: 'en-US' });
+      assert.equal(headers.get('Content-Language'), 'en-US');
+    });
+
     it('handles the contentLength property', () => {
       let headers = new SuperHeaders({ contentLength: 42 });
       assert.equal(headers.get('Content-Length'), '42');
@@ -232,11 +242,6 @@ describe('SuperHeaders', () => {
       assert.equal(headers.get('Host'), 'example.com');
     });
 
-    it('handles the lastModified property', () => {
-      let headers = new SuperHeaders({ lastModified: new Date('2021-01-01T00:00:00Z') });
-      assert.equal(headers.get('Last-Modified'), 'Fri, 01 Jan 2021 00:00:00 GMT');
-    });
-
     it('handles the ifModifiedSince property', () => {
       let headers = new SuperHeaders({ ifModifiedSince: new Date('2021-01-01T00:00:00Z') });
       assert.equal(headers.get('If-Modified-Since'), 'Fri, 01 Jan 2021 00:00:00 GMT');
@@ -247,6 +252,16 @@ describe('SuperHeaders', () => {
       assert.equal(headers.get('If-Unmodified-Since'), 'Fri, 01 Jan 2021 00:00:00 GMT');
     });
 
+    it('handles the lastModified property', () => {
+      let headers = new SuperHeaders({ lastModified: new Date('2021-01-01T00:00:00Z') });
+      assert.equal(headers.get('Last-Modified'), 'Fri, 01 Jan 2021 00:00:00 GMT');
+    });
+
+    it('handles the location property', () => {
+      let headers = new SuperHeaders({ location: 'https://example.com' });
+      assert.equal(headers.get('Location'), 'https://example.com');
+    });
+
     it('handles the referer property', () => {
       let headers = new SuperHeaders({ referer: 'https://example.com' });
       assert.equal(headers.get('Referer'), 'https://example.com');
@@ -413,6 +428,36 @@ describe('SuperHeaders', () => {
       assert.equal(headers.contentDisposition.toString(), '');
     });
 
+    it('supports the contentEncoding property', () => {
+      let headers = new SuperHeaders();
+
+      assert.equal(headers.contentEncoding, null);
+
+      headers.contentEncoding = 'gzip';
+      assert.equal(headers.contentEncoding, 'gzip');
+
+      headers.contentEncoding = ['deflate', 'gzip'];
+      assert.equal(headers.contentEncoding, 'deflate, gzip');
+
+      headers.contentEncoding = null;
+      assert.equal(headers.contentEncoding, null);
+    });
+
+    it('supports the contentLanguage property', () => {
+      let headers = new SuperHeaders();
+
+      assert.equal(headers.contentLanguage, null);
+
+      headers.contentLanguage = 'en-US';
+      assert.equal(headers.contentLanguage, 'en-US');
+
+      headers.contentLanguage = ['en', 'fr'];
+      assert.equal(headers.contentLanguage, 'en, fr');
+
+      headers.contentLanguage = null;
+      assert.equal(headers.contentLanguage, null);
+    });
+
     it('supports the contentLength property', () => {
       let headers = new SuperHeaders();
 
@@ -506,19 +551,6 @@ describe('SuperHeaders', () => {
       assert.equal(headers.host, null);
     });
 
-    it('supports the lastModified property', () => {
-      let headers = new SuperHeaders();
-
-      assert.equal(headers.lastModified, null);
-
-      headers.lastModified = new Date('2021-01-01T00:00:00Z');
-      assert.ok(headers.lastModified instanceof Date);
-      assert.equal(headers.lastModified.toUTCString(), 'Fri, 01 Jan 2021 00:00:00 GMT');
-
-      headers.lastModified = null;
-      assert.equal(headers.lastModified, null);
-    });
-
     it('supports the ifModifiedSince property', () => {
       let headers = new SuperHeaders();
 
@@ -545,6 +577,31 @@ describe('SuperHeaders', () => {
       assert.equal(headers.ifUnmodifiedSince, null);
     });
 
+    it('supports the lastModified property', () => {
+      let headers = new SuperHeaders();
+
+      assert.equal(headers.lastModified, null);
+
+      headers.lastModified = new Date('2021-01-01T00:00:00Z');
+      assert.ok(headers.lastModified instanceof Date);
+      assert.equal(headers.lastModified.toUTCString(), 'Fri, 01 Jan 2021 00:00:00 GMT');
+
+      headers.lastModified = null;
+      assert.equal(headers.lastModified, null);
+    });
+
+    it('supports the location property', () => {
+      let headers = new SuperHeaders();
+
+      assert.equal(headers.location, null);
+
+      headers.location = 'https://example.com';
+      assert.equal(headers.location, 'https://example.com');
+
+      headers.location = null;
+      assert.equal(headers.location, null);
+    });
+
     it('supports the referer property', () => {
       let headers = new SuperHeaders();
 
diff --git a/packages/headers/src/lib/super-headers.ts b/packages/headers/src/lib/super-headers.ts
index 27c125d..2de8db4 100644
--- a/packages/headers/src/lib/super-headers.ts
+++ b/packages/headers/src/lib/super-headers.ts
@@ -48,6 +48,14 @@ interface SuperHeadersPropertyInit {
    * The [`Content-Disposition`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Disposition) header value.
    */
   contentDisposition?: string | ContentDispositionInit;
+  /**
+   * The [`Content-Encoding`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Encoding) header value.
+   */
+  contentEncoding?: string | string[];
+  /**
+   * The [`Content-Language`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Language) header value.
+   */
+  contentLanguage?: string | string[];
   /**
    * The [`Content-Length`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Length) header value.
    */
@@ -84,6 +92,10 @@ interface SuperHeadersPropertyInit {
    * The [`Last-Modified`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Last-Modified) header value.
    */
   lastModified?: string | DateInit;
+  /**
+   * The [`Location`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Location) header value.
+   */
+  location?: string;
   /**
    * The [`Referer`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referer) header value.
    */
@@ -434,6 +446,42 @@ export class SuperHeaders extends Headers {
     this.#setHeaderValue('content-disposition', ContentDisposition, value);
   }
 
+  /**
+   * The `Content-Encoding` header specifies the encoding of the resource.
+   *
+   * Note: If multiple encodings have been used, this value may be a comma-separated list. However, most often this
+   * header will only contain a single value.
+   *
+   * [MDN `Content-Encoding` Reference](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Encoding)
+   *
+   * [HTTP/1.1 Specification](https://httpwg.org/specs/rfc9110.html#field.content-encoding)
+   */
+  get contentEncoding(): string | null {
+    return this.get('content-encoding');
+  }
+
+  set contentEncoding(value: string | string[] | undefined | null) {
+    this.#setValue('content-encoding', Array.isArray(value) ? value.join(', ') : value);
+  }
+
+  /**
+   * The `Content-Language` header describes the natural language(s) of the intended audience for the response content.
+   *
+   * Note: If the response content is intended for multiple audiences, this value may be a comma-separated list. However,
+   * most often this header will only contain a single value.
+   *
+   * [MDN `Content-Language` Reference](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Language)
+   *
+   * [HTTP/1.1 Specification](https://httpwg.org/specs/rfc9110.html#field.content-language)
+   */
+  get contentLanguage(): string | null {
+    return this.get('content-language');
+  }
+
+  set contentLanguage(value: string | string[] | undefined | null) {
+    this.#setValue('content-language', Array.isArray(value) ? value.join(', ') : value);
+  }
+
   /**
    * The `Content-Length` header indicates the size of the entity-body in bytes.
    *
@@ -572,6 +620,21 @@ export class SuperHeaders extends Headers {
     this.#setDateValue('last-modified', value);
   }
 
+  /**
+   * The `Location` header indicates the URL to redirect to.
+   *
+   * [MDN `Location` Reference](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Location)
+   *
+   * [HTTP/1.1 Specification](https://datatracker.ietf.org/doc/html/rfc7231#section-7.1.2)
+   */
+  get location(): string | null {
+    return this.get('location');
+  }
+
+  set location(value: string | undefined | null) {
+    this.#setValue('location', value);
+  }
+
   /**
    * The `Referer` header contains the address of the previous web page from which a link to the
    * currently requested page was followed.