diff --git a/api/PerformanceLongAnimationFrameTiming.json b/api/PerformanceLongAnimationFrameTiming.json
index 8342c7fe7a7bab..95c3851927595d 100644
--- a/api/PerformanceLongAnimationFrameTiming.json
+++ b/api/PerformanceLongAnimationFrameTiming.json
@@ -3,7 +3,7 @@
     "PerformanceLongAnimationFrameTiming": {
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming",
-        "spec_url": "https://w3c.github.io/long-animation-frames/#sec-PerformanceLongAnimationFrameTiming",
+        "spec_url": "https://www.w3.org/TR/long-animation-frames/#sec-PerformanceLongAnimationFrameTiming",
         "tags": [
           "web-features:long-animation-frames"
         ],
@@ -37,7 +37,7 @@
       "blockingDuration": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/blockingDuration",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-blockingduration",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancelonganimationframetiming-blockingduration",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -72,7 +72,7 @@
       "firstUIEventTimestamp": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/firstUIEventTimestamp",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-firstuieventtimestamp",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancelonganimationframetiming-firstuieventtimestamp",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -106,7 +106,6 @@
       },
       "paintTime": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/paintTime",
           "spec_url": "https://w3c.github.io/paint-timing/#dom-painttimingmixin-painttime",
           "support": {
             "chrome": {
@@ -138,7 +137,6 @@
       },
       "presentationTime": {
         "__compat": {
-          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/presentationTime",
           "spec_url": "https://w3c.github.io/paint-timing/#dom-painttimingmixin-presentationtime",
           "support": {
             "chrome": {
@@ -171,7 +169,7 @@
       "renderStart": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/renderStart",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-renderstart",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancelonganimationframetiming-renderstart",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -206,7 +204,7 @@
       "scripts": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/scripts",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-scripts",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancelonganimationframetiming-scripts",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -241,7 +239,7 @@
       "styleAndLayoutStart": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/styleAndLayoutStart",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-styleandlayoutstart",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancelonganimationframetiming-styleandlayoutstart",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -276,7 +274,7 @@
       "toJSON": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceLongAnimationFrameTiming/toJSON",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancelonganimationframetiming-tojson",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancelonganimationframetiming-tojson",
           "tags": [
             "web-features:long-animation-frames"
           ],
diff --git a/api/PerformanceScriptTiming.json b/api/PerformanceScriptTiming.json
index 430f01c9d01405..7cbfeedba7ac45 100644
--- a/api/PerformanceScriptTiming.json
+++ b/api/PerformanceScriptTiming.json
@@ -3,7 +3,7 @@
     "PerformanceScriptTiming": {
       "__compat": {
         "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming",
-        "spec_url": "https://w3c.github.io/long-animation-frames/#sec-PerformanceScriptTiming",
+        "spec_url": "https://www.w3.org/TR/long-animation-frames/#sec-PerformanceScriptTiming",
         "tags": [
           "web-features:long-animation-frames"
         ],
@@ -37,7 +37,7 @@
       "executionStart": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/executionStart",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-executionstart",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-executionstart",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -72,7 +72,7 @@
       "forcedStyleAndLayoutDuration": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/forcedStyleAndLayoutDuration",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-forcedstyleandlayoutduration",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-forcedstyleandlayoutduration",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -107,7 +107,7 @@
       "invoker": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/invoker",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-invoker",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-invoker",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -142,7 +142,7 @@
       "invokerType": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/invokerType",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-invokertype",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-invokertype",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -177,7 +177,7 @@
       "pauseDuration": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/pauseDuration",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-pauseduration",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-pauseduration",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -212,7 +212,7 @@
       "sourceCharPosition": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/sourceCharPosition",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-sourcecharposition",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-sourcecharposition",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -247,7 +247,7 @@
       "sourceFunctionName": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/sourceFunctionName",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-sourcefunctionname",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-sourcefunctionname",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -282,7 +282,7 @@
       "sourceURL": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/sourceURL",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-sourceurl",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-sourceurl",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -317,7 +317,7 @@
       "toJSON": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/toJSON",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-tojson",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-tojson",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -352,7 +352,7 @@
       "window": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/window",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-window",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-window",
           "tags": [
             "web-features:long-animation-frames"
           ],
@@ -387,7 +387,7 @@
       "windowAttribution": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceScriptTiming/windowAttribution",
-          "spec_url": "https://w3c.github.io/long-animation-frames/#dom-performancescripttiming-windowattribution",
+          "spec_url": "https://www.w3.org/TR/long-animation-frames/#dom-performancescripttiming-windowattribution",
           "tags": [
             "web-features:long-animation-frames"
           ],