diff --git a/DESCRIPTION b/DESCRIPTION
index 5f1fff73e..7009713fe 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -26,11 +26,13 @@ Imports:
     desc (>= 1.4.0),
     digest,
     downlit (>= 0.4.0),
+    fontawesome,
     fs (>= 1.4.0),
     httr (>= 1.4.2),
     jsonlite,
     magrittr,
     memoise,
+    openssl,
     purrr (>= 1.0.0),
     ragg,
     rlang (>= 1.1.0),
@@ -52,7 +54,6 @@ Suggests:
     lifecycle,
     magick,
     methods,
-    openssl,
     pkgload (>= 1.0.2),
     rsconnect,
     rstudioapi,
diff --git a/NEWS.md b/NEWS.md
index 285a537cb..cfbc53f00 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,7 +1,8 @@
 # pkgdown (development version)
 
 * `build_sitemap()` no longer includes redirected pages (#2582).
-* `build_reference_index()` now displays lifecycle badges next to the function name (#2123). You can now also use `has_lifecycle()` to select functions by their lifecycle status.
+* All external assets (JS, CSS, fonts) are now directly included in the site instead of fetched from external CDN (@salim-b, #2249)
+* `build_reference_index()` now displays function lifecycle badges next to the function name (#2123). The badges are extracted only from the function description. You can now also use `has_lifecycle()` to select functions by their lifecycle status.
 * `build_articles()` now recognises a new `external-articles` top-level field that allows you to define articles that live in other packages (#2028).
 * New light switch makes it easy for users to switch between light and dark themes for the website (based on work in bslib by @gadenbuie). For now this behaviour is opt-in with `template.light-switch: true` but in the future we may turn it on automatically. See the customization vignette for details (#1696).
 * The search dropdown has been tweaked to look more like the other navbar menu items (#2338).
diff --git a/R/build-article.R b/R/build-article.R
index 246052727..2e6a98d70 100644
--- a/R/build-article.R
+++ b/R/build-article.R
@@ -52,7 +52,7 @@ build_article <- function(name,
 
   default_data <- list(
     pagetitle = escape_html(front$title),
-    toc = toc <- front$toc %||% TRUE,
+    toc = front$toc %||% TRUE,
     opengraph = list(description = front$description %||% pkg$package),
     source = repo_source(pkg, input),
     filename = path_file(input),
diff --git a/R/external-deps.R b/R/external-deps.R
new file mode 100644
index 000000000..1348970b5
--- /dev/null
+++ b/R/external-deps.R
@@ -0,0 +1,125 @@
+external_dependencies <- function() {
+  list(
+    fontawesome::fa_html_dependency(),
+    cached_dependency(
+      name = "headroom",
+      version = "0.11.0",
+      files = list(
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/headroom.min.js",
+          integrity = "sha256-AsUX4SJE1+yuDu5+mAVzJbuYNPHj/WroHuZ8Ir/CkE0="
+        ),
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/jQuery.headroom.min.js",
+          integrity = "sha256-ZX/yNShbjqsohH1k95liqY9Gd8uOiE1S4vZc+9KQ1K4="
+        )
+      )
+    ),
+    cached_dependency(
+      name = "bootstrap-toc",
+      version = "1.0.1",
+      files = list(
+        list(
+          url = "https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@v1.0.1/dist/bootstrap-toc.min.js",
+          integrity = "sha256-4veVQbu7//Lk5TSmc7YV48MxtMy98e26cf5MrgZYnwo="
+        )
+      )
+    ),
+    cached_dependency(
+      name = "clipboard.js",
+      version = "2.0.11",
+      files = list(
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.11/clipboard.min.js",
+          integrity = "sha512-7O5pXpc0oCRrxk8RUfDYFgn0nO1t+jLuIOQdOMRp4APB7uZ4vSjspzp5y6YDtDs4VzUSTbWzBFZ/LKJhnyFOKw=="
+        )
+      )
+    ),
+    cached_dependency(
+      name = "search",
+      version = "1.0.0",
+      files = list(
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/fuse.js/6.4.6/fuse.min.js",
+          integrity = "sha512-KnvCNMwWBGCfxdOtUpEtYgoM59HHgjHnsVGSxxgz7QH1DYeURk+am9p3J+gsOevfE29DV0V+/Dd52ykTKxN5fA=="
+        ),
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/autocomplete.js/0.38.0/autocomplete.jquery.min.js",
+          integrity = "sha512-GU9ayf+66Xx2TmpxqJpliWbT5PiGYxpaG8rfnBEk1LL8l1KGkRShhngwdXK1UgqhAzWpZHSiYPc09/NwDQIGyg=="
+        ),
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/mark.js/8.11.1/mark.min.js",
+          integrity = "sha512-5CYOlHXGh6QpOFA/TeTylKLWfB3ftPsde7AnmhuitiTX4K5SqCLBeKro6sPS8ilsz1Q4NRx3v8Ko2IBiszzdww=="
+        )
+      )
+    ),
+    cached_dependency(
+      name = "MathJax",
+      version = "2.7.5",
+      files = list(
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js",
+          integrity = "sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k="
+        ),
+        list(
+          url = "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js",
+          integrity = "sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA="
+        )
+      )
+    )
+  )
+}
+
+cached_dependency <- function(name, version, files) {
+  cache_dir <- path(tools::R_user_dir("pkgdown", "cache"), name, version)
+  dir_create(cache_dir)
+
+  for (file in files) {
+    cache_path <- path(cache_dir, path_file(file$url))
+    if (!file_exists(cache_path)) {
+      utils::download.file(file$url, cache_path, quiet = TRUE, mode = "wb")
+      check_integrity(cache_path, file$integrity)
+    }
+  }
+  dep_files <- path_rel(dir_ls(cache_dir), cache_dir)
+
+  htmltools::htmlDependency(
+    name = name,
+    version = version,
+    src = cache_dir,
+    script = dep_files[path_ext(dep_files) == "js"],
+    stylesheet = dep_files[path_ext(dep_files) == "css"]
+  )
+}
+
+check_integrity <- function(path, integrity) {
+  parsed <- parse_integrity(integrity)
+  if (!parsed$size %in% c(256L, 384L, 512L)) {
+    cli::cli_abort(
+      "{.field integrity} must use SHA-256, SHA-384, or SHA-512",
+      .internal = TRUE
+    )
+  }
+
+  hash <- compute_hash(path, parsed$size)
+  if (hash != parsed$hash) {
+    cli::cli_abort(
+      "Downloaded asset does not match known integrity",
+      .internal = TRUE
+    )
+  }
+
+  invisible()
+}
+
+compute_hash <- function(path, size) {
+  con <- file(path, encoding = "UTF-8")
+  openssl::base64_encode(openssl::sha2(con, size))
+}
+ 
+parse_integrity <- function(x) {
+  size <- as.integer(regmatches(x, regexpr("(?<=^sha)\\d{3}", x, perl = TRUE)))
+  hash <- regmatches(x, regexpr("(?<=^sha\\d{3}-).+", x, perl = TRUE))
+
+  list(size = size, hash = hash)
+}
diff --git a/R/package.R b/R/package.R
index baa61970e..d8832adea 100644
--- a/R/package.R
+++ b/R/package.R
@@ -288,7 +288,9 @@ extract_source <- function(x) {
 }
 
 extract_lifecycle <- function(x) {
-  fig <- extract_figure(x)
+  desc <- purrr::keep(x, inherits, "tag_description")
+  fig <- extract_figure(desc)
+
   if (!is.null(fig) && length(fig) > 0 && length(fig[[1]]) > 0) {
     path <- as.character(fig[[1]][[1]])  
     if (grepl("lifecycle", path)) {
diff --git a/R/render.R b/R/render.R
index 21f59a1ce..cc177ad90 100644
--- a/R/render.R
+++ b/R/render.R
@@ -128,6 +128,7 @@ data_template <- function(pkg = ".", depth = 0L) {
 
   out$navbar <- data_navbar(pkg, depth = depth)
   out$footer <- data_footer(pkg)
+  out$lightswitch <- uses_lightswitch(pkg)
 
   print_yaml(out)
 }
diff --git a/R/theme.R b/R/theme.R
index 485d0d950..b08d8ecca 100644
--- a/R/theme.R
+++ b/R/theme.R
@@ -5,7 +5,7 @@ build_bslib <- function(pkg = ".", call = caller_env()) {
   cur_deps <- find_deps(pkg)
   cur_digest <- purrr::map_chr(cur_deps, file_digest)
 
-  deps <- bslib::bs_theme_dependencies(bs_theme)
+  deps <- c(bslib::bs_theme_dependencies(bs_theme), external_dependencies())
   deps <- lapply(deps, htmltools::copyDependencyToDir, path(pkg$dst_path, "deps"))
   deps <- lapply(deps, htmltools::makeDependencyRelative, pkg$dst_path)
 
@@ -17,7 +17,8 @@ build_bslib <- function(pkg = ".", call = caller_env()) {
   changed <- all_deps[!diff | is.na(diff)]
 
   if (length(changed) > 0) {
-    purrr::walk(changed, function(dst) {
+    withr::local_locale(LC_COLLATE = "C")
+    purrr::walk(sort(changed), function(dst) {
       cli::cli_inform("Updating {dst_path(path_rel(dst, pkg$dst_path))}")
     })
   }
diff --git a/inst/BS5/assets/lightswitch.js b/inst/BS5/assets/lightswitch.js
new file mode 100644
index 000000000..9467125ae
--- /dev/null
+++ b/inst/BS5/assets/lightswitch.js
@@ -0,0 +1,85 @@
+
+/*!
+ * Color mode toggler for Bootstrap's docs (https://getbootstrap.com/)
+ * Copyright 2011-2023 The Bootstrap Authors
+ * Licensed under the Creative Commons Attribution 3.0 Unported License.
+ * Updates for {pkgdown} by the {bslib} authors, also licensed under CC-BY-3.0.
+ */
+
+const getStoredTheme = () => localStorage.getItem('theme')
+const setStoredTheme = theme => localStorage.setItem('theme', theme)
+
+const getPreferredTheme = () => {
+  const storedTheme = getStoredTheme()
+  if (storedTheme) {
+    return storedTheme
+  }
+
+  return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'
+}
+
+const setTheme = theme => {
+  if (theme === 'auto') {
+    document.documentElement.setAttribute('data-bs-theme', (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'))
+  } else {
+    document.documentElement.setAttribute('data-bs-theme', theme)
+  }
+}
+
+function bsSetupThemeToggle () {
+  'use strict'
+
+  const showActiveTheme = (theme, focus = false) => {
+    var activeLabel, activeIcon;
+
+    document.querySelectorAll('[data-bs-theme-value]').forEach(element => {
+      const buttonTheme = element.getAttribute('data-bs-theme-value')
+      const isActive = buttonTheme == theme
+      
+      element.classList.toggle('active', isActive)
+      element.setAttribute('aria-pressed', isActive)
+
+      if (isActive) {
+        activeLabel = element.textContent;
+        activeIcon = element.querySelector('span').classList.value;
+      }
+    })
+
+    const themeSwitcher = document.querySelector('#dropdown-lightswitch')
+    if (!themeSwitcher) {
+      return
+    }
+
+    themeSwitcher.setAttribute('aria-label', activeLabel)
+    themeSwitcher.querySelector('span').classList.value = activeIcon;
+
+    if (focus) {
+      themeSwitcher.focus()
+    }
+  }
+
+  window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
+    const storedTheme = getStoredTheme()
+    if (storedTheme !== 'light' && storedTheme !== 'dark') {
+      setTheme(getPreferredTheme())
+    }
+  })
+
+  window.addEventListener('DOMContentLoaded', () => {
+    showActiveTheme(getPreferredTheme())
+
+    document
+      .querySelectorAll('[data-bs-theme-value]')
+      .forEach(toggle => {
+        toggle.addEventListener('click', () => {
+          const theme = toggle.getAttribute('data-bs-theme-value')
+          setTheme(theme)
+          setStoredTheme(theme)
+          showActiveTheme(theme, true)
+        })
+      })
+  })
+}
+
+setTheme(getPreferredTheme());
+bsSetupThemeToggle();
diff --git a/inst/BS5/assets/pkgdown.js b/inst/BS5/assets/pkgdown.js
index bdb4c706a..9757bf9ef 100644
--- a/inst/BS5/assets/pkgdown.js
+++ b/inst/BS5/assets/pkgdown.js
@@ -152,88 +152,3 @@ async function searchFuse(query, callback) {
   });
   });
 })(window.jQuery || window.$)
-
-/*!
- * Color mode toggler for Bootstrap's docs (https://getbootstrap.com/)
- * Copyright 2011-2023 The Bootstrap Authors
- * Licensed under the Creative Commons Attribution 3.0 Unported License.
- * Updates for {pkgdown} by the {bslib} authors, also licensed under CC-BY-3.0.
- */
-
-const getStoredTheme = () => localStorage.getItem('theme')
-const setStoredTheme = theme => localStorage.setItem('theme', theme)
-
-const getPreferredTheme = () => {
-  const storedTheme = getStoredTheme()
-  if (storedTheme) {
-    return storedTheme
-  }
-
-  return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'
-}
-
-const setTheme = theme => {
-  if (theme === 'auto') {
-    document.documentElement.setAttribute('data-bs-theme', (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'))
-  } else {
-    document.documentElement.setAttribute('data-bs-theme', theme)
-  }
-}
-
-function bsSetupThemeToggle () {
-  'use strict'
-
-  const showActiveTheme = (theme, focus = false) => {
-    var activeLabel, activeIcon;
-
-    document.querySelectorAll('[data-bs-theme-value]').forEach(element => {
-      const buttonTheme = element.getAttribute('data-bs-theme-value')
-      const isActive = buttonTheme == theme
-      
-      element.classList.toggle('active', isActive)
-      element.setAttribute('aria-pressed', isActive)
-
-      if (isActive) {
-        activeLabel = element.textContent;
-        activeIcon = element.querySelector('span').classList.value;
-      }
-    })
-
-    const themeSwitcher = document.querySelector('#dropdown-lightswitch')
-    if (!themeSwitcher) {
-      return
-    }
-
-    themeSwitcher.setAttribute('aria-label', activeLabel)
-    themeSwitcher.querySelector('span').classList.value = activeIcon;
-
-    if (focus) {
-      themeSwitcher.focus()
-    }
-  }
-
-  window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
-    const storedTheme = getStoredTheme()
-    if (storedTheme !== 'light' && storedTheme !== 'dark') {
-      setTheme(getPreferredTheme())
-    }
-  })
-
-  window.addEventListener('DOMContentLoaded', () => {
-    showActiveTheme(getPreferredTheme())
-
-    document
-      .querySelectorAll('[data-bs-theme-value]')
-      .forEach(toggle => {
-        toggle.addEventListener('click', () => {
-          const theme = toggle.getAttribute('data-bs-theme-value')
-          setTheme(theme)
-          setStoredTheme(theme)
-          showActiveTheme(theme, true)
-        })
-      })
-  })
-}
-
-setTheme(getPreferredTheme());
-bsSetupThemeToggle();
diff --git a/inst/BS5/assets/pkgdown.scss b/inst/BS5/assets/pkgdown.scss
index 5e0a32531..911382fe7 100644
--- a/inst/BS5/assets/pkgdown.scss
+++ b/inst/BS5/assets/pkgdown.scss
@@ -127,8 +127,8 @@ aside {
   .row > aside {
     margin: 0.5rem;
     width: calc(100vw - 1rem);
-    background-color: $gray-100;
-    border-color: $border-color;
+    background-color: RGBA(var(--bs-body-color-rgb), 0.1);
+    border-color: var(--bs-border-color);
     @include border-radius($border-radius);
 
     h2:first-child {
diff --git a/inst/BS5/templates/head.html b/inst/BS5/templates/head.html
index 183609b52..94b79040b 100644
--- a/inst/BS5/templates/head.html
+++ b/inst/BS5/templates/head.html
@@ -18,25 +18,11 @@
 <link rel="apple-touch-icon" type="image/png" sizes="60x60" href="{{#site}}{{root}}{{/site}}apple-touch-icon-60x60.png" />
 {{/has_favicons}}
 
-{{{headdeps}}}
-<!-- Font Awesome icons -->
-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/all.min.css" integrity="sha256-mmgLkCYLUQbXn0B1SRqzHar6dCnv9oZFPEC1g1cwlkk=" crossorigin="anonymous" />
-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.1/css/v4-shims.min.css" integrity="sha256-wZjR52fzng1pJHwx4aV2AO3yyTOXrcDW7jBpJtTwVxw=" crossorigin="anonymous" />
-
-<!-- bootstrap-toc -->
-<script src="https://cdn.jsdelivr.net/gh/afeld/bootstrap-toc@v1.0.1/dist/bootstrap-toc.min.js" integrity="sha256-4veVQbu7//Lk5TSmc7YV48MxtMy98e26cf5MrgZYnwo=" crossorigin="anonymous"></script>
-
-<!-- headroom.js -->
-<script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/headroom.min.js" integrity="sha256-AsUX4SJE1+yuDu5+mAVzJbuYNPHj/WroHuZ8Ir/CkE0=" crossorigin="anonymous"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/headroom/0.11.0/jQuery.headroom.min.js" integrity="sha256-ZX/yNShbjqsohH1k95liqY9Gd8uOiE1S4vZc+9KQ1K4=" crossorigin="anonymous"></script>
+{{#lightswitch}}
+<script src="{{#site}}{{root}}{{/site}}lightswitch.js"></script>
+{{/lightswitch}}
 
-<!-- clipboard.js -->
-<script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.11/clipboard.min.js" integrity="sha512-7O5pXpc0oCRrxk8RUfDYFgn0nO1t+jLuIOQdOMRp4APB7uZ4vSjspzp5y6YDtDs4VzUSTbWzBFZ/LKJhnyFOKw==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
-
-<!-- search -->
-<script src="https://cdnjs.cloudflare.com/ajax/libs/fuse.js/6.4.6/fuse.js" integrity="sha512-zv6Ywkjyktsohkbp9bb45V6tEMoWhzFzXis+LrMehmJZZSys19Yxf1dopHx7WzIKxr5tK2dVcYmaCk2uqdjF4A==" crossorigin="anonymous"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/autocomplete.js/0.38.0/autocomplete.jquery.min.js" integrity="sha512-GU9ayf+66Xx2TmpxqJpliWbT5PiGYxpaG8rfnBEk1LL8l1KGkRShhngwdXK1UgqhAzWpZHSiYPc09/NwDQIGyg==" crossorigin="anonymous"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/mark.js/8.11.1/mark.min.js" integrity="sha512-5CYOlHXGh6QpOFA/TeTylKLWfB3ftPsde7AnmhuitiTX4K5SqCLBeKro6sPS8ilsz1Q4NRx3v8Ko2IBiszzdww==" crossorigin="anonymous"></script>
+{{{headdeps}}}
 
 <!-- pkgdown -->
 <script src="{{#site}}{{root}}{{/site}}pkgdown.js"></script>
@@ -80,10 +66,6 @@
 <meta name="google-site-verification" content="{{{.}}}" />
 {{/google_site_verification}}{{/yaml}}
 
-<!-- mathjax -->
-<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script>
-
 {{#yaml}}{{#ganalytics}}
 <!-- Global site tag (gtag.js) - Google Analytics -->
 <script async src="https://www.googletagmanager.com/gtag/js?id={{.}}"></script>
diff --git a/tests/testthat/_snaps/external-deps.md b/tests/testthat/_snaps/external-deps.md
new file mode 100644
index 000000000..0745d5f1c
--- /dev/null
+++ b/tests/testthat/_snaps/external-deps.md
@@ -0,0 +1,17 @@
+# check integrity validates integrity
+
+    Code
+      check_integrity(temp, "sha123-abc")
+    Condition
+      Error in `check_integrity()`:
+      ! integrity must use SHA-256, SHA-384, or SHA-512
+      i This is an internal error that was detected in the pkgdown package.
+        Please report it at <https://github.com/r-lib/pkgdown/issues> with a reprex (<https://tidyverse.org/help/>) and the full backtrace.
+    Code
+      check_integrity(temp, "sha256-abc")
+    Condition
+      Error in `check_integrity()`:
+      ! Downloaded asset does not match known integrity
+      i This is an internal error that was detected in the pkgdown package.
+        Please report it at <https://github.com/r-lib/pkgdown/issues> with a reprex (<https://tidyverse.org/help/>) and the full backtrace.
+
diff --git a/tests/testthat/_snaps/init.md b/tests/testthat/_snaps/init.md
index 62dc0e6f1..c71a7dff9 100644
--- a/tests/testthat/_snaps/init.md
+++ b/tests/testthat/_snaps/init.md
@@ -19,15 +19,37 @@
       init_site(pkg)
     Message
       -- Initialising site -----------------------------------------------------------
+      Copying <pkgdown>/BS5/assets/lightswitch.js to lightswitch.js
       Copying <pkgdown>/BS5/assets/link.svg to link.svg
       Copying <pkgdown>/BS5/assets/pkgdown.js to pkgdown.js
       Copying pkgdown/extra.css to extra.css
+      Updating deps/MathJax-2.7.5/MathJax.js
+      Updating deps/MathJax-2.7.5/TeX-AMS-MML_HTMLorMML.js
       Updating deps/bootstrap-5.3.1/bootstrap.bundle.min.js
       Updating deps/bootstrap-5.3.1/bootstrap.bundle.min.js.map
       Updating deps/bootstrap-5.3.1/bootstrap.min.css
+      Updating deps/bootstrap-toc-1.0.1/bootstrap-toc.min.js
+      Updating deps/clipboard.js-2.0.11/clipboard.min.js
+      Updating deps/font-awesome-6.4.2/css/all.css
+      Updating deps/font-awesome-6.4.2/css/all.min.css
+      Updating deps/font-awesome-6.4.2/css/v4-shims.css
+      Updating deps/font-awesome-6.4.2/css/v4-shims.min.css
+      Updating deps/font-awesome-6.4.2/webfonts/fa-brands-400.ttf
+      Updating deps/font-awesome-6.4.2/webfonts/fa-brands-400.woff2
+      Updating deps/font-awesome-6.4.2/webfonts/fa-regular-400.ttf
+      Updating deps/font-awesome-6.4.2/webfonts/fa-regular-400.woff2
+      Updating deps/font-awesome-6.4.2/webfonts/fa-solid-900.ttf
+      Updating deps/font-awesome-6.4.2/webfonts/fa-solid-900.woff2
+      Updating deps/font-awesome-6.4.2/webfonts/fa-v4compatibility.ttf
+      Updating deps/font-awesome-6.4.2/webfonts/fa-v4compatibility.woff2
+      Updating deps/headroom-0.11.0/headroom.min.js
+      Updating deps/headroom-0.11.0/jQuery.headroom.min.js
       Updating deps/jquery-3.6.0/jquery-3.6.0.js
       Updating deps/jquery-3.6.0/jquery-3.6.0.min.js
       Updating deps/jquery-3.6.0/jquery-3.6.0.min.map
+      Updating deps/search-1.0.0/autocomplete.jquery.min.js
+      Updating deps/search-1.0.0/fuse.min.js
+      Updating deps/search-1.0.0/mark.min.js
 
 # site meta doesn't break unexpectedly
 
diff --git a/tests/testthat/_snaps/render.md b/tests/testthat/_snaps/render.md
index 514d8979d..420a49623 100644
--- a/tests/testthat/_snaps/render.md
+++ b/tests/testthat/_snaps/render.md
@@ -61,6 +61,7 @@
     footer:
       left: <p>Developed by Hadley Wickham, RStudio.</p>
       right: <p>Site built with <a href="https://pkgdown.r-lib.org/">pkgdown</a> {version}.</p>
+    lightswitch: no
     
 
 # check_opengraph validates inputs
diff --git a/tests/testthat/test-external-deps.R b/tests/testthat/test-external-deps.R
new file mode 100644
index 000000000..730f0eb26
--- /dev/null
+++ b/tests/testthat/test-external-deps.R
@@ -0,0 +1,15 @@
+test_that("check integrity validates integrity", {
+  temp <- withr::local_tempfile(lines = letters)
+
+  expect_snapshot(error = TRUE, {
+    check_integrity(temp, "sha123-abc")
+    check_integrity(temp, "sha256-abc")
+  })
+
+  integrity <- paste0("sha256-", compute_hash(temp, 256L))
+  expect_no_error(check_integrity(temp, integrity))
+})
+
+test_that("can parse integrity", {
+  expect_equal(parse_integrity("sha256-abc"), list(size = 256L, hash = "abc"))
+})
diff --git a/tests/testthat/test-package.R b/tests/testthat/test-package.R
index 5a262a6d1..ef068eb64 100644
--- a/tests/testthat/test-package.R
+++ b/tests/testthat/test-package.R
@@ -98,11 +98,18 @@ test_that("read_meta() errors gracefully if _pkgdown.yml failed to parse", {
 
 # lifecycle ---------------------------------------------------------------
 
-test_that("can extract lifecycle badges", {
-  expect_equal(
-    extract_lifecycle(rd_text(lifecycle::badge("deprecated"))), 
-    "deprecated"
+test_that("can extract lifecycle badges from description", {
+  rd_desc <- rd_text(
+    paste0("\\description{", lifecycle::badge("deprecated"), "}"),
+    fragment = FALSE
+  )
+  rd_param <- rd_text(
+    paste0("\\arguments{\\item{pkg}{", lifecycle::badge("deprecated"), "}}"),
+    fragment = FALSE
   )
+
+  expect_equal(extract_lifecycle(rd_desc), "deprecated")
+  expect_equal(extract_lifecycle(rd_param), NULL)
 })
 
 test_that("malformed figures fail gracefully", {