diff --git a/src/profiles/mastodon.spec.ts b/src/profiles/mastodon.spec.ts
index 2ed67b5..5e74a2f 100644
--- a/src/profiles/mastodon.spec.ts
+++ b/src/profiles/mastodon.spec.ts
@@ -19,21 +19,24 @@ describe('PROFILE: mastodon', () => {
     expect(sl.getLink(profile, profileId, TYPE_DESKTOP)).toBe(desktop);
   });
 
+  const checkMastodonMatches = (domain: string, profileId: string) => {
+    expect(sl.isValid(profile, `https://${domain}/@${profileId}`)).toBeTruthy();
+    expect(sl.isValid(profile, `http://${domain}/@${profileId}`)).toBeTruthy();
+    expect(sl.isValid(profile, `${domain}/@${profileId}/`)).toBeTruthy();
+    expect(sl.isValid(profile, `http://${domain}/@${profileId}/`)).toBeTruthy();
+    expect(sl.isValid(profile, `www.${domain}/@${profileId}`)).toBeTruthy();
+    expect(sl.isValid(profile, `http://www.${domain}/@${profileId}`)).toBeTruthy();
+  };
+
   it('should mastodon.social valid wariations', () => {
-    expect(sl.isValid(profile, `https://mastodon.social/@${profileId}`)).toBeTruthy();
-    expect(sl.isValid(profile, `http://mastodon.social/@${profileId}`)).toBeTruthy();
-    expect(sl.isValid(profile, `mastodon.social/@${profileId}/`)).toBeTruthy();
-    expect(sl.isValid(profile, `http://mastodon.social/@${profileId}/`)).toBeTruthy();
-    expect(sl.isValid(profile, `www.mastodon.social/@${profileId}`)).toBeTruthy();
-    expect(sl.isValid(profile, `http://www.mastodon.social/@${profileId}`)).toBeTruthy();
+    checkMastodonMatches('mastodon.social', profileId);
   });
 
   it('should mstdn.social valid wariations', () => {
-    expect(sl.isValid(profile, `https://mstdn.social/@${profileId}`)).toBeTruthy();
-    expect(sl.isValid(profile, `http://mstdn.social/@${profileId}`)).toBeTruthy();
-    expect(sl.isValid(profile, `mstdn.social/@${profileId}/`)).toBeTruthy();
-    expect(sl.isValid(profile, `http://mstdn.social/@${profileId}/`)).toBeTruthy();
-    expect(sl.isValid(profile, `www.mstdn.social/@${profileId}`)).toBeTruthy();
-    expect(sl.isValid(profile, `http://www.mstdn.social/@${profileId}`)).toBeTruthy();
+    checkMastodonMatches('mstdn.social', profileId);
+  });
+  
+  it('should mastodon.world valid wariations', () => {
+    checkMastodonMatches('mastodon.world', profileId);
   });
 });
diff --git a/src/profiles/mastodon.ts b/src/profiles/mastodon.ts
index b511392..809a95a 100644
--- a/src/profiles/mastodon.ts
+++ b/src/profiles/mastodon.ts
@@ -5,16 +5,19 @@ export const mastodon = {
   name: 'mastodon',
   matches: [
     {
-      // https://mastodon.social/@gkucmierz
       match: '(https?://)?(www.)?mastodon.social/@({PROFILE_ID})/?', group: 3, type: TYPE_DESKTOP,
       pattern: 'https://mastodon.social/@{PROFILE_ID}'
     },
     {
-      // https://mstdn.social/@gkucmierz
       match: '(https?://)?(www.)?mstdn.social/@({PROFILE_ID})/?', group: 3, type: TYPE_DESKTOP,
       pattern: 'https://mstdn.social/@{PROFILE_ID}'
     },
+    {
+      match: '(https?://)?(www.)?mastodon.world/@({PROFILE_ID})/?', group: 3, type: TYPE_DESKTOP,
+      pattern: 'https://mastodon.world/@{PROFILE_ID}'
+    },
     { match: '@?({PROFILE_ID})(@mastodon.social)?', group: 1 },
     { match: '@?({PROFILE_ID})(@mstdn.social)?', group: 1 },
+    { match: '@?({PROFILE_ID})(@mastodon.world)?', group: 1 },
   ]
 };