diff --git a/Appendix-C:-Test-Sites.md b/Appendix-C:-Test-Sites.md
index c4e7e14..cad23e6 100644
--- a/Appendix-C:-Test-Sites.md
+++ b/Appendix-C:-Test-Sites.md
@@ -52,6 +52,8 @@ If you would like to submit a test page to be added to this list, please post th
 ### :small_orange_diamond: Other
 - [AudioContext](https://audiofingerprint.openwpm.com/) - **h**ttps://audiofingerprint.openwpm.com/
 - [Battery](https://pstadler.sh/battery.js/) <sup>1</sup> - **h**ttps://pstadler.sh/battery.js/
+- [Canvas Blocking Detection](https://kkapsner.github.io/CanvasBlocker/test/detectionTest.html) - **h**ttps://kkapsner.github.io/CanvasBlocker/test/detectionTest.html
+   * See [Issue 174](https://github.com/ghacksuserjs/ghacks-user.js/issues/174)
 - [CSS History Leak](http://lcamtuf.coredump.cx/yahh/) <sup>2</sup> - **h**ttp://lcamtuf.coredump.cx/yahh/
 - [DNS Leak](https://www.dnsleaktest.com/) - **h**ttps://www.dnsleaktest.com/
 - [DNS Spoofability](https://www.grc.com/dns/dns.htm) - **h**ttps://www.grc.com/dns/dns.htm