diff --git a/.readthedocs.yaml b/.readthedocs.yaml
deleted file mode 100644
index f62cc87d..00000000
--- a/.readthedocs.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
-# Required
-version: 2
-
-build:
-  image: latest
-
-python:
-  install:
-    - requirements: ci/environment_pip.txt
-
-sphinx:
-  configuration: portal/conf.py
-  fail_on_warning: false
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fc7bed70..f92e5b13 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -94,8 +94,10 @@ conda activate pythia
 conda update --all
 ```
 
-### To view the Read the Docs autobuild
+### Preview the built site on Netlify
 
-Once a Pull Request has passed all tests, including the Read the Docs build, you can click "Details" of the check that says, "docs/readthedocs.org:projectpythia - Read the Docs build succeeded!" to launch a new tab with a build of the Project Pythia site. (You may have to click "Show all checks" for this to be displayed.)
+Once a pull request has passed all tests, including the `preview-site` check, the GitHub bot will post a comment with a preview link on the pull request. You can click on the link to launch a new tab with a build of the Project Pythia site.
 
-![Checks](/portal/_static/images/ReadtheDocsAutobuild.png)
+![CI-check](/portal/_static/images/deploy-site-CI-check.png)
+
+![Netlify Preview](/portal/_static/images/netlify-preview.png)
diff --git a/ci/environment_pip.txt b/ci/environment_pip.txt
deleted file mode 100644
index f897babf..00000000
--- a/ci/environment_pip.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-myst-nb==0.12.3
-sphinx-book-theme
-sphinx-panels
-matplotlib
-pandas
-pyyaml
-pre-commit
diff --git a/portal/_static/images/ReadtheDocsAutobuild.png b/portal/_static/images/ReadtheDocsAutobuild.png
deleted file mode 100644
index 25eec582..00000000
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diff --git a/portal/_static/images/deploy-site-CI-check.png b/portal/_static/images/deploy-site-CI-check.png
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index 00000000..5e3478a9
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diff --git a/portal/_static/images/netlify-preview.png b/portal/_static/images/netlify-preview.png
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index 00000000..10812e55
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