diff --git a/gddo-server/assets/templates/importers.html b/gddo-server/assets/templates/importers.html
index 87c8c05..06c4cec 100644
--- a/gddo-server/assets/templates/importers.html
+++ b/gddo-server/assets/templates/importers.html
@@ -7,5 +7,5 @@
 {{end}}
 
 {{define "PkgGoDevLink"}}
-  <a href="https://pkg.go.dev{{if .pdoc.ImportPath}}/{{.pdoc.ImportPath}}{{end}}?tab=importedby">pkg.go.dev{{if .pdoc.ImportPath}}/{{.pdoc.ImportPath}}?tab=importedby{{end}}</a>
+  <a href="https://pkg.go.dev{{if .pdoc.ImportPath}}{{if notVendorPath .pdoc.ImportPath}}/{{.pdoc.ImportPath}}?tab=importedby{{end}}{{end}}">pkg.go.dev{{if .pdoc.ImportPath}}{{if notVendorPath .pdoc.ImportPath}}/{{.pdoc.ImportPath}}?tab=importedby{{end}}{{end}}</a>
 {{end}}
diff --git a/gddo-server/assets/templates/imports.html b/gddo-server/assets/templates/imports.html
index 3204a9e..7cc8f2d 100644
--- a/gddo-server/assets/templates/imports.html
+++ b/gddo-server/assets/templates/imports.html
@@ -7,5 +7,5 @@
 {{end}}
 
 {{define "PkgGoDevLink"}}
-  <a href="https://pkg.go.dev{{if .pdoc.ImportPath}}/{{.pdoc.ImportPath}}{{end}}?tab=imports">pkg.go.dev{{if .pdoc.ImportPath}}/{{.pdoc.ImportPath}}?tab=imports{{end}}</a>
+  <a href="https://pkg.go.dev{{if .pdoc.ImportPath}}{{if notVendorPath .pdoc.ImportPath}}/{{.pdoc.ImportPath}}?tab=imports{{end}}{{end}}">pkg.go.dev{{if .pdoc.ImportPath}}{{if notVendorPath .pdoc.ImportPath}}/{{.pdoc.ImportPath}}?tab=imports{{end}}{{end}}</a>
 {{end}}
diff --git a/gddo-server/main.go b/gddo-server/main.go
index 9ffb342..dc1d843 100644
--- a/gddo-server/main.go
+++ b/gddo-server/main.go
@@ -1171,6 +1171,12 @@
 	u := &url.URL{Scheme: "https", Host: pkgGoDevHost}
 	q := url.Values{"utm_source": []string{"godoc"}}
 
+	if strings.Contains(godocURL.Path, "/vendor/") || strings.HasSuffix(godocURL.Path, "/vendor") {
+		u.Path = "/"
+		u.RawQuery = q.Encode()
+		return u
+	}
+
 	switch godocURL.Path {
 	case "/-/go":
 		u.Path = "/std"
diff --git a/gddo-server/main_test.go b/gddo-server/main_test.go
index 28f53a4..a68d363 100644
--- a/gddo-server/main_test.go
+++ b/gddo-server/main_test.go
@@ -151,6 +151,14 @@
 			from: "https://godoc.org/cloud.google.com/go/storage?importers",
 			to:   "https://pkg.go.dev/cloud.google.com/go/storage?tab=importedby&utm_source=godoc",
 		},
+		{
+			from: "https://godoc.org/golang.org/x/vgo/vendor/cmd/go/internal/modfile",
+			to:   "https://pkg.go.dev/?utm_source=godoc",
+		},
+		{
+			from: "https://godoc.org/golang.org/x/vgo/vendor",
+			to:   "https://pkg.go.dev/?utm_source=godoc",
+		},
 	}
 
 	for _, tc := range testCases {
diff --git a/gddo-server/template.go b/gddo-server/template.go
index 501525f..7b2a6c8 100644
--- a/gddo-server/template.go
+++ b/gddo-server/template.go
@@ -521,7 +521,7 @@
 
 const pkgGoDevLinkTmpl = `
 {{define "PkgGoDevLink"}}
-  <a href="https://pkg.go.dev{{if .pdoc.ImportPath}}/{{.pdoc.ImportPath}}{{end}}">pkg.go.dev{{if .pdoc.ImportPath}}/{{.pdoc.ImportPath}}{{end}}</a>
+  <a href="https://pkg.go.dev{{if .pdoc.ImportPath}}{{if notVendorPath .pdoc.ImportPath}}/{{.pdoc.ImportPath}}{{end}}{{end}}">pkg.go.dev{{if .pdoc.ImportPath}}{{if notVendorPath .pdoc.ImportPath}}/{{.pdoc.ImportPath}}{{end}}{{end}}</a>
 {{end}}
 `
 
@@ -559,6 +559,7 @@
 		"relativePath":      relativePathFn,
 		"sidebarEnabled":    func() bool { return v.GetBool(ConfigSidebar) },
 		"staticPath":        func(p string) string { return cb.AppendQueryParam(p, "v") },
+		"notVendorPath":     func(p string) bool { return !strings.Contains(p, "/vendor") },
 	}
 	for _, set := range htmlSets {
 		templateName := set[0]