diff --git a/core/audits/long-tasks.js b/core/audits/long-tasks.js
index 66acd3ed64d8..7f612e86646e 100644
--- a/core/audits/long-tasks.js
+++ b/core/audits/long-tasks.js
@@ -24,7 +24,7 @@ const UIStrings = {
   /** Description of a diagnostic LH audit that shows the user the longest running tasks that occur when the page loads. */
   description: 'Lists the longest tasks on the main thread, ' +
     'useful for identifying worst contributors to input delay. ' +
-    '[Learn how to avoid long main-thread tasks](https://web.dev/articles/long-tasks-devtools)',
+    '[Learn how to avoid long main-thread tasks](https://web.dev/articles/optimize-long-tasks)',
   /** [ICU Syntax] Label identifying the number of long-running CPU tasks that occurred while loading a web page. */
   displayValue: `{itemCount, plural,
   =1 {# long task found}
diff --git a/core/test/fixtures/user-flows/reports/sample-flow-result.json b/core/test/fixtures/user-flows/reports/sample-flow-result.json
index f6252e5e984e..51e19049c4f9 100644
--- a/core/test/fixtures/user-flows/reports/sample-flow-result.json
+++ b/core/test/fixtures/user-flows/reports/sample-flow-result.json
@@ -1851,7 +1851,7 @@
           "long-tasks": {
             "id": "long-tasks",
             "title": "Avoid long main-thread tasks",
-            "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/long-tasks-devtools)",
+            "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/optimize-long-tasks)",
             "score": 1,
             "scoreDisplayMode": "informative",
             "displayValue": "4 long tasks found",
@@ -9613,7 +9613,7 @@
           "long-tasks": {
             "id": "long-tasks",
             "title": "Avoid long main-thread tasks",
-            "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/long-tasks-devtools)",
+            "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/optimize-long-tasks)",
             "score": 1,
             "scoreDisplayMode": "informative",
             "displayValue": "1 long task found",
@@ -19541,7 +19541,7 @@
           "long-tasks": {
             "id": "long-tasks",
             "title": "Avoid long main-thread tasks",
-            "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/long-tasks-devtools)",
+            "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/optimize-long-tasks)",
             "score": 1,
             "scoreDisplayMode": "informative",
             "displayValue": "4 long tasks found",
diff --git a/core/test/results/sample_v2.json b/core/test/results/sample_v2.json
index 45d72c5c06ee..b4a17eb022e0 100644
--- a/core/test/results/sample_v2.json
+++ b/core/test/results/sample_v2.json
@@ -2405,7 +2405,7 @@
     "long-tasks": {
       "id": "long-tasks",
       "title": "Avoid long main-thread tasks",
-      "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/long-tasks-devtools)",
+      "description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/optimize-long-tasks)",
       "score": 1,
       "scoreDisplayMode": "informative",
       "displayValue": "3 long tasks found",
diff --git a/shared/localization/locales/en-US.json b/shared/localization/locales/en-US.json
index f20e33696775..d9ef9cc34cb9 100644
--- a/shared/localization/locales/en-US.json
+++ b/shared/localization/locales/en-US.json
@@ -1101,7 +1101,7 @@
     "message": "Largest Contentful Paint image was not lazily loaded"
   },
   "core/audits/long-tasks.js | description": {
-    "message": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/long-tasks-devtools)"
+    "message": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn how to avoid long main-thread tasks](https://web.dev/articles/optimize-long-tasks)"
   },
   "core/audits/long-tasks.js | displayValue": {
     "message": "{itemCount, plural,\n  =1 {# long task found}\n  other {# long tasks found}\n  }"
diff --git a/shared/localization/locales/en-XL.json b/shared/localization/locales/en-XL.json
index f337c64c0a0f..9eebad4bfd19 100644
--- a/shared/localization/locales/en-XL.json
+++ b/shared/localization/locales/en-XL.json
@@ -1101,7 +1101,7 @@
     "message": "L̂ár̂ǵêśt̂ Ćôńt̂én̂t́f̂úl̂ Ṕâín̂t́ îḿâǵê ẃâś n̂ót̂ ĺâźîĺŷ ĺôád̂éd̂"
   },
   "core/audits/long-tasks.js | description": {
-    "message": "L̂íŝt́ŝ t́ĥé l̂ón̂ǵêśt̂ t́âśk̂ś ôń t̂h́ê ḿâín̂ t́ĥŕêád̂, úŝéf̂úl̂ f́ôŕ îd́êńt̂íf̂ýîńĝ ẃôŕŝt́ ĉón̂t́r̂íb̂út̂ór̂ś t̂ó îńp̂út̂ d́êĺâý. [L̂éâŕn̂ h́ôẃ t̂ó âv́ôíd̂ ĺôńĝ ḿâín̂-t́ĥŕêád̂ t́âśk̂ś](https://web.dev/articles/long-tasks-devtools)"
+    "message": "L̂íŝt́ŝ t́ĥé l̂ón̂ǵêśt̂ t́âśk̂ś ôń t̂h́ê ḿâín̂ t́ĥŕêád̂, úŝéf̂úl̂ f́ôŕ îd́êńt̂íf̂ýîńĝ ẃôŕŝt́ ĉón̂t́r̂íb̂út̂ór̂ś t̂ó îńp̂út̂ d́êĺâý. [L̂éâŕn̂ h́ôẃ t̂ó âv́ôíd̂ ĺôńĝ ḿâín̂-t́ĥŕêád̂ t́âśk̂ś](https://web.dev/articles/optimize-long-tasks)"
   },
   "core/audits/long-tasks.js | displayValue": {
     "message": "{itemCount, plural,\n  =1 {# l̂ón̂ǵ t̂áŝḱ f̂óûńd̂}\n  other {# ĺôńĝ t́âśk̂ś f̂óûńd̂}\n  }"