diff --git a/readme.md b/readme.md
index b760770..acdb681 100644
--- a/readme.md
+++ b/readme.md
@@ -3,6 +3,8 @@ Comparison of some different mostly free GeoIP APIs I found around the internet.
 
 Go to https://geoip.emrik.org to do your own benchmark or lookup an IP address using multiple APIs.
 
+Accuracy is harder to test. But the only service that seems to achieve intercity tracking is ipgeolocation.io in my limited tests. Test on https://geoip.emrik.org to see for yourself :)
+
 Feel free to add any APIs you find to the list by creating a pull request or an issue.
 ## Sites
 | Url | Https | Limit | Clientside | Client lookup delay | Serverside delay |