diff --git a/modules/validations/incompatible_source.js b/modules/validations/incompatible_source.js
index e8367ffd57..25601898fa 100644
--- a/modules/validations/incompatible_source.js
+++ b/modules/validations/incompatible_source.js
@@ -30,6 +30,12 @@ export function validationIncompatibleSource() {
 
     return entitySources
       .map(source => {
+        try {
+          const sourceURL = new URL(source);
+          source = sourceURL.hostname;
+        } catch (e) {
+          // Source string is not a url
+        }
         const matchRule = incompatibleRules.find(rule => {
           if (!rule.regex.test(source)) return false;
           if (rule.exceptRegex && rule.exceptRegex.test(source)) return false;
diff --git a/test/spec/validations/incompatible_source.js b/test/spec/validations/incompatible_source.js
index b812e5e578..c4ff1d1222 100644
--- a/test/spec/validations/incompatible_source.js
+++ b/test/spec/validations/incompatible_source.js
@@ -63,6 +63,22 @@ describe('iD.validations.incompatible_source', function () {
         expect(issue.entityIds[0]).to.eql('w-1');
     });
 
+    it('flags way with incompatible URL source tag', function() {
+        createWay({ amenity: 'cafe', building: 'yes', name: 'Key Largo Café', source: 'https://www.google.com/maps'});
+        var issues = validate();
+        expect(issues).to.have.lengthOf(1);
+        var issue = issues[0];
+        expect(issue.type).to.eql('incompatible_source');
+        expect(issue.entityIds).to.have.lengthOf(1);
+        expect(issue.entityIds[0]).to.eql('w-1');
+    });
+
+    it('ignores way with incompatible string outside of URL hostname', function() {
+        createWay({ amenity: 'cafe', building: 'yes', name: 'Key Largo Café', source: 'https://www.mercurynews.com/2019/10/03/new-office-tower-gets-underway-downtown-san-jose-google-adobe-tech/'});
+        var issues = validate();
+        expect(issues).to.have.lengthOf(0);
+    });
+
     it('does not flag buildings in the google-africa-buildings dataset', function() {
         createWay({ building: 'yes', source: 'esri/Google_Africa_Buildings' });
         var issues = validate();