diff --git a/requirements.txt b/requirements.txt
index 981ee0b..a2d2551 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,8 @@
+wheel
 flask
 sentry-sdk[flask]
+flask-caching
+
+# threads
 requests
 markdown
diff --git a/web.py b/web.py
index 513c75c..d7bb89e 100755
--- a/web.py
+++ b/web.py
@@ -1,6 +1,7 @@
+from flask import Flask, send_from_directory
+from flask_caching import Cache
 import sentry_sdk
 import json
-from flask import Flask, send_from_directory
 from partials import partials
 from threads import threads
 
@@ -9,7 +10,10 @@ app.register_blueprint(partials, url_prefix='/p')
 app.register_blueprint(threads, url_prefix='/threads')
 app.config.from_file("config.json", load=json.load)
 
-# sentry.io error monitoring
+# caching
+cache = Cache()
+
+# perf monitoring & error tracking
 sentry_config = app.config["SENTRY"]
 sentry_sdk.init(
     dsn=sentry_config["dsn"],