misc(descriptions): more accurate metric descriptions (#6508)

lighthouse-core/audits/metrics/estimated-input-latency.js

@@ -13,8 +13,8 @@ const UIStrings = {
   /** The name of the metric that marks the estimated time between the page receiving input (a user clicking, tapping, or typing) and the page responding. Shown to users as the label for the numeric metric value. Ideally fits within a ~40 character limit. */
   title: 'Estimated Input Latency',
   /** Description of the Estimated Input Latency metric that estimates the amount of time, in milliseconds, that the app takes to respond to user input. This description is displayed within a tooltip when the user hovers on the metric name to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
-  description: 'The score above is an estimate of how long your app takes to respond to user ' +
-      'input, in milliseconds, during the busiest 5s window of page load. If your ' +
+  description: 'Estimated Input Latency is an estimate of how long your app takes to respond to ' +
+      'user input, in milliseconds, during the busiest 5s window of page load. If your ' +
       'latency is higher than 50 ms, users may perceive your app as laggy. ' +
       '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).',
 };

lighthouse-core/audits/metrics/interactive.js

@@ -13,8 +13,8 @@ const UIStrings = {
   /** The name of the metric that marks the time at which the page is fully loaded and is able to quickly respond to user input (clicks, taps, and keypresses feel responsive). Shown to users as the label for the numeric metric value. Ideally fits within a ~40 character limit. */
   title: 'Time to Interactive',
   /** Description of the Time to Interactive (TTI) metric, which evaluates when a page has completed its primary network activity and main thread work. This is displayed within a tooltip when the user hovers on the metric name to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
-  description: 'Interactive marks the time at which the page is fully interactive. ' +
-    '[Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).',
+  description: 'Time to interactive is the amount of time it takes for the page to become fully ' +
+    'interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).',
 };
 
 const str_ = i18n.createMessageInstanceIdFn(__filename, UIStrings);

lighthouse-core/lib/i18n/en-US.json

@@ -672,7 +672,7 @@
     "description": "Title of a diagnostic audit that provides detail on the main thread work the browser did to load the page. This descriptive title is shown to users when the amount is acceptable and no user action is required."
   },
   "lighthouse-core/audits/metrics/estimated-input-latency.js | description": {
-    "message": "The score above is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).",
+    "message": "Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).",
     "description": "Description of the Estimated Input Latency metric that estimates the amount of time, in milliseconds, that the app takes to respond to user input. This description is displayed within a tooltip when the user hovers on the metric name to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
   },
   "lighthouse-core/audits/metrics/estimated-input-latency.js | title": {
@@ -704,7 +704,7 @@
     "description": "The name of the metric that marks the time at which a majority of the content has been painted by the browser. Shown to users as the label for the numeric metric value. Ideally fits within a ~40 character limit."
   },
   "lighthouse-core/audits/metrics/interactive.js | description": {
-    "message": "Interactive marks the time at which the page is fully interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).",
+    "message": "Time to interactive is the amount of time it takes for the page to become fully interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).",
     "description": "Description of the Time to Interactive (TTI) metric, which evaluates when a page has completed its primary network activity and main thread work. This is displayed within a tooltip when the user hovers on the metric name to see more. No character length limits. 'Learn More' becomes link text to additional documentation."
   },
   "lighthouse-core/audits/metrics/interactive.js | title": {

lighthouse-core/test/results/sample_v2.json

@@ -196,7 +196,7 @@
     "estimated-input-latency": {
       "id": "estimated-input-latency",
       "title": "Estimated Input Latency",
-      "description": "The score above is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).",
+      "description": "Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).",
       "score": 1,
       "scoreDisplayMode": "numeric",
       "rawValue": 16,
@@ -279,7 +279,7 @@
     "interactive": {
       "id": "interactive",
       "title": "Time to Interactive",
-      "description": "Interactive marks the time at which the page is fully interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).",
+      "description": "Time to interactive is the amount of time it takes for the page to become fully interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).",
       "score": 0.78,
       "scoreDisplayMode": "numeric",
       "rawValue": 4927.278,

proto/sample_v2_round_trip.json

@@ -569,7 +569,7 @@
             "title": "Browser errors were logged to the console"
         }, 
         "estimated-input-latency": {
-            "description": "The score above is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).", 
+            "description": "Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency).", 
             "displayValue": "20\u00a0ms", 
             "id": "estimated-input-latency", 
             "score": 1.0, 
@@ -953,7 +953,7 @@
             "title": "Web app manifest does not meet the installability requirements"
         }, 
         "interactive": {
-            "description": "Interactive marks the time at which the page is fully interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).", 
+            "description": "Time to interactive is the amount of time it takes for the page to become fully interactive. [Learn more](https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive).", 
             "displayValue": "4.9\u00a0s", 
             "id": "interactive", 
             "score": 0.78,