diff --git a/src/psl.c b/src/psl.c
index aba1594..fed72b7 100644
--- a/src/psl.c
+++ b/src/psl.c
@@ -231,15 +231,15 @@ int psl_is_public(const psl_ctx_t *psl, const char *domain)
 		if (*p == '.')
 			suffix.nlabels++;
 
-	// if domain has enough labels, it won't match
+	// if domain has enough labels, it is public
 	rule = _vector_get(psl->suffixes, 0);
 	if (!rule || rule->nlabels < suffix.nlabels - 1)
-		return 0;
+		return 1;
 
 	rule = _vector_get(psl->suffixes, _vector_find(psl->suffixes, &suffix));
 	if (rule) {
 		// definitely a match, no matter if the found rule is a wildcard or not
-		return 1;
+		return 0;
 	}
 
 	label_bak = suffix.label;
@@ -259,14 +259,14 @@ int psl_is_public(const psl_ctx_t *psl, const char *domain)
 				suffix.nlabels++;
 
 				if (_vector_get(psl->suffix_exceptions, _vector_find(psl->suffix_exceptions, &suffix)) != 0)
-					return 0;
+					return 1; // found an exception, so 'domain' is public
 
-				return 1;
+				return 0;
 			}
 		}
 	}
 
-	return 0;
+	return 1;
 }
 
 psl_ctx_t *psl_load_file(const char *fname)
diff --git a/src/psl2c.c b/src/psl2c.c
index ffe1487..511e19b 100644
--- a/src/psl2c.c
+++ b/src/psl2c.c
@@ -28,6 +28,7 @@
 # include <config.h>
 #endif
 
+// # include <idn2.h>
 #include "psl.c"
 
 static void _print_psl_entries(_psl_vector_t *v, const char *varname)
@@ -42,6 +43,17 @@ static void _print_psl_entries(_psl_vector_t *v, const char *varname)
 
 		printf("\t{ \"%s\", NULL, %hd, %hhd, %hhd },\n",
 			e->label_buf, e->length, e->nlabels, e->wildcard);
+/*
+		if (str_needs_encoding(e->label_buf)) {
+			char *asc = NULL;
+			int rc;
+
+			if ((rc = idn2_lookup_u8((uint8_t *)e->label_buf, (uint8_t **)&asc, 0)) == IDN2_OK) {
+				fprintf(stderr, "idn2 '%s' -> '%s'\n", e->label_buf, asc);
+			} else
+				fprintf(stderr, "toASCII(%s) failed (%d): %s\n", e->label_buf, rc, idn2_strerror(rc));
+		}
+*/
 	}
 
 	printf("};\n");
diff --git a/tests/test-is-public-inline.c b/tests/test-is-public-inline.c
index e3430da..1777317 100644
--- a/tests/test-is-public-inline.c
+++ b/tests/test-is-public-inline.c
@@ -50,18 +50,18 @@ static void test_psl(void)
 		int
 			result;
 	} test_data[] = {
-		{ "www.example.com", 0 },
-		{ "com.ar", 1 },
-		{ "www.com.ar", 0 },
-		{ "cc.ar.us", 1 },
-		{ ".cc.ar.us", 1 },
-		{ "www.cc.ar.us", 0 },
-		{ "www.ck", 0 }, // exception from *.ck
-		{ "abc.www.ck", 0 },
-		{ "xxx.ck", 1 },
-		{ "www.xxx.ck", 0 },
-		{ "\345\225\206\346\240\207", 1 }, // xn--czr694b oder 商标
-		{ "www.\345\225\206\346\240\207", 0 },
+		{ "www.example.com", 1 },
+		{ "com.ar", 0 },
+		{ "www.com.ar", 1 },
+		{ "cc.ar.us", 0 },
+		{ ".cc.ar.us", 0 },
+		{ "www.cc.ar.us", 1 },
+		{ "www.ck", 1 }, // exception from *.ck
+		{ "abc.www.ck", 1 },
+		{ "xxx.ck", 0 },
+		{ "www.xxx.ck", 1 },
+		{ "\345\225\206\346\240\207", 0 }, // xn--czr694b oder 商标
+		{ "www.\345\225\206\346\240\207", 1 },
 //		{ "xn--czr694b", 1 },
 //		{ "www.xn--czr694b", 1 },
 	};
diff --git a/tests/test-is-public.c b/tests/test-is-public.c
index 09fb057..00db2d0 100644
--- a/tests/test-is-public.c
+++ b/tests/test-is-public.c
@@ -48,16 +48,16 @@ static void test_psl(void)
 		int
 			result;
 	} test_data[] = {
-		{ "www.example.com", 0 },
-		{ "com.ar", 1 },
-		{ "www.com.ar", 0 },
-		{ "cc.ar.us", 1 },
-		{ ".cc.ar.us", 1 },
-		{ "www.cc.ar.us", 0 },
-		{ "www.ck", 0 }, // exception from *.ck
-		{ "abc.www.ck", 0 },
-		{ "xxx.ck", 1 },
-		{ "www.xxx.ck", 0 },
+		{ "www.example.com", 1 },
+		{ "com.ar", 0 },
+		{ "www.com.ar", 1 },
+		{ "cc.ar.us", 0 },
+		{ ".cc.ar.us", 0 },
+		{ "www.cc.ar.us", 1 },
+		{ "www.ck", 1 }, // exception from *.ck
+		{ "abc.www.ck", 1 },
+		{ "xxx.ck", 0 },
+		{ "www.xxx.ck", 1 },
 	};
 	unsigned it;
 	psl_ctx_t *psl;