From 9339383497405050526973860257f56ecb554172 Mon Sep 17 00:00:00 2001
From: Francis Cao <franciscao@gmail.com>
Date: Wed, 28 Jan 2026 17:18:03 -0800
Subject: [PATCH] remove www. prefix from hostname during comparison. Closes
 #3256

---
 src/lib/prisma.ts                                       | 2 +-
 src/queries/sql/getValues.ts                            | 2 +-
 src/queries/sql/pageviews/getPageviewExpandedMetrics.ts | 2 +-
 src/queries/sql/pageviews/getPageviewMetrics.ts         | 2 +-
 src/queries/sql/reports/getAttribution.ts               | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/lib/prisma.ts b/src/lib/prisma.ts
index bfd007d1..c2f98b57 100644
--- a/src/lib/prisma.ts
+++ b/src/lib/prisma.ts
@@ -108,7 +108,7 @@ function getFilterQuery(filters: Record<string, any>, options: QueryOptions = {}
 
         if (name === 'referrer') {
           arr.push(
-            `and (website_event.referrer_domain != website_event.hostname or website_event.referrer_domain is null)`,
+            `and (website_event.referrer_domain != regexp_replace(website_event.hostname, '^www.', '') or website_event.referrer_domain is null)`,
           );
         }
       }
diff --git a/src/queries/sql/getValues.ts b/src/queries/sql/getValues.ts
index cc6bb7d2..8573335b 100644
--- a/src/queries/sql/getValues.ts
+++ b/src/queries/sql/getValues.ts
@@ -23,7 +23,7 @@ async function relationalQuery(websiteId: string, column: string, filters: Query
   let excludeDomain = '';
 
   if (column === 'referrer_domain') {
-    excludeDomain = `and website_event.referrer_domain != website_event.hostname
+    excludeDomain = `and website_event.referrer_domain != regexp_replace(website_event.hostname, '^www.', '')
       and website_event.referrer_domain != ''`;
   }
 
diff --git a/src/queries/sql/pageviews/getPageviewExpandedMetrics.ts b/src/queries/sql/pageviews/getPageviewExpandedMetrics.ts
index ccb0be53..54164973 100644
--- a/src/queries/sql/pageviews/getPageviewExpandedMetrics.ts
+++ b/src/queries/sql/pageviews/getPageviewExpandedMetrics.ts
@@ -50,7 +50,7 @@ async function relationalQuery(
   let excludeDomain = '';
 
   if (column === 'referrer_domain') {
-    excludeDomain = `and website_event.referrer_domain != website_event.hostname
+    excludeDomain = `and website_event.referrer_domain != regexp_replace(website_event.hostname, '^www.', '')
       and website_event.referrer_domain != ''`;
     if (type === 'domain') {
       column = toPostgresGroupedReferrer(GROUPED_DOMAINS);
diff --git a/src/queries/sql/pageviews/getPageviewMetrics.ts b/src/queries/sql/pageviews/getPageviewMetrics.ts
index 9d4f6278..b41ea058 100644
--- a/src/queries/sql/pageviews/getPageviewMetrics.ts
+++ b/src/queries/sql/pageviews/getPageviewMetrics.ts
@@ -46,7 +46,7 @@ async function relationalQuery(
   let excludeDomain = '';
 
   if (column === 'referrer_domain') {
-    excludeDomain = `and website_event.referrer_domain != website_event.hostname
+    excludeDomain = `and website_event.referrer_domain != regexp_replace(website_event.hostname, '^www.', '')
       and website_event.referrer_domain != ''`;
   }
 
diff --git a/src/queries/sql/reports/getAttribution.ts b/src/queries/sql/reports/getAttribution.ts
index 29068f7d..088b5b24 100644
--- a/src/queries/sql/reports/getAttribution.ts
+++ b/src/queries/sql/reports/getAttribution.ts
@@ -142,7 +142,7 @@ async function relationalQuery(
     ${
       currency
         ? ''
-        : `and we.referrer_domain != hostname
+        : `and we.referrer_domain != regexp_replace(we.hostname, '^www.', '')
       and we.referrer_domain != ''`
     }  
     group by 1