diff --git a/content/about.md b/content/about.md
index 3be11bd..d1d173a 100644
--- a/content/about.md
+++ b/content/about.md
@@ -52,6 +52,12 @@ I host some online services that you're welcome to use free of charge.
   ```txt
   smp://PUDVvQiNbsYG6gXYC2-GYUIQnNICi3BoxKGDKWX55uM=@smp01.simplex.sapti.me,pcexmrs4eod35vdvidq47jce7mnsfm26j27anttoy4zprc25pulkcfyd.onion
   ```
+- [An XFTP server](xftp://ZQ_l1SSdHDil-FCwhK7WH5KXhmQ8RTiYqh5xOh4aLL4=@xftp01.simplex.sapti.me,n5vct5tnf4zoaigmfj4ppxzhgrslg3n4a4sp5yjppp6lfwvq7m2vn2id.onion:5443) -
+  A server used by [Simplex Chat](https://simplex.chat) to send large files
+  between users. Server address:
+  ```txt
+  xftp://ZQ_l1SSdHDil-FCwhK7WH5KXhmQ8RTiYqh5xOh4aLL4=@xftp01.simplex.sapti.me,n5vct5tnf4zoaigmfj4ppxzhgrslg3n4a4sp5yjppp6lfwvq7m2vn2id.onion:5443
+  ```
 
 ## Want to know more?