diff --git a/Appendix-C:-Test-Sites.md b/Appendix-C:-Test-Sites.md
index 38f6001..c4e7e14 100644
--- a/Appendix-C:-Test-Sites.md
+++ b/Appendix-C:-Test-Sites.md
@@ -62,6 +62,8 @@ If you would like to submit a test page to be added to this list, please post th
 - [HSTS [sniffly]](http://zyan.scripts.mit.edu/sniffly/) - **h**ttp://zyan.scripts.mit.edu/sniffly/
 - [HTML5](https://www.youtube.com/html5) - **h**ttps://www.youtube.com/html5
 - [Intermediate CA Cache Fingerprinting](https://fiprinca.0x90.eu/poc/) - **h**ttps://fiprinca.0x90.eu/poc/
+- [Inner Window Measurements](https://arthuredelstein.github.io/tordemos/media-query-fingerprint.html) - **h**ttps://arthuredelstein.github.io/tordemos/media-query-fingerprint.html
+   * Interesting method using media elements to obtain inner window measurements
 - [Keyboard Events](https://w3c.github.io/uievents/tools/key-event-viewer.html) - **h**ttps://w3c.github.io/uievents/tools/key-event-viewer.html
 - [Popup Killer](http://www.kephyr.com/popupkillertest/index.html) - **h**ttp://www.kephyr.com/popupkillertest/index.html
 - [Popup Test](http://www.popuptest.com/) - **h**ttp://www.popuptest.com/