diff --git a/app/logical/authorize_net_client.rb b/app/logical/authorize_net_client.rb
index 3f30850f1..47faa05c6 100644
--- a/app/logical/authorize_net_client.rb
+++ b/app/logical/authorize_net_client.rb
@@ -9,7 +9,7 @@ class AuthorizeNetClient
 
   attr_reader :login_id, :transaction_key, :test_mode, :http
 
-  def initialize(login_id: Danbooru.config.authorize_net_login_id, transaction_key: Danbooru.config.authorize_net_transaction_key, test_mode: Danbooru.config.authorize_net_test_mode, http: Danbooru::Http.new)
+  def initialize(login_id: Danbooru.config.authorize_net_login_id, transaction_key: Danbooru.config.authorize_net_transaction_key, test_mode: Danbooru.config.authorize_net_test_mode, http: Danbooru::Http.external)
     @login_id = login_id
     @transaction_key = transaction_key
     @test_mode = test_mode
diff --git a/app/logical/autotagger_client.rb b/app/logical/autotagger_client.rb
index d628a74db..adf64a3a2 100644
--- a/app/logical/autotagger_client.rb
+++ b/app/logical/autotagger_client.rb
@@ -7,7 +7,7 @@
 class AutotaggerClient
   attr_reader :autotagger_url, :http
 
-  def initialize(autotagger_url: Danbooru.config.autotagger_url.to_s, http: Danbooru::Http.new)
+  def initialize(autotagger_url: Danbooru.config.autotagger_url.to_s, http: Danbooru::Http.internal)
     @autotagger_url = autotagger_url.chomp("/")
     @http = http
   end
diff --git a/app/logical/danbooru/http.rb b/app/logical/danbooru/http.rb
index 83d88c105..43a0384a7 100644
--- a/app/logical/danbooru/http.rb
+++ b/app/logical/danbooru/http.rb
@@ -40,21 +40,33 @@ module Danbooru
     attr_accessor :max_size, :http
 
     class << self
-      delegate :get, :head, :put, :post, :delete, :cache, :follow, :max_size, :timeout, :auth, :basic_auth, :headers, :cookies, :use, :public_only, :with_legacy_ssl, :download_media, to: :new
+      delegate :get, :head, :put, :post, :delete, :cache, :follow, :max_size, :timeout, :auth, :basic_auth, :headers, :cookies, :use, :proxy, :public_only, :with_legacy_ssl, :download_media, to: :new
     end
 
-    def initialize
-      @http ||=
-        ::Danbooru::Http::ApplicationClient.new
+    # The default HTTP client.
+    def self.default
+      Danbooru::Http::ApplicationClient.new
         .timeout(DEFAULT_TIMEOUT)
-        .headers("Accept-Encoding" => "gzip")
-        .headers("User-Agent": "#{Danbooru.config.canonical_app_name}/#{Rails.application.config.x.git_hash}")
-        #.headers("User-Agent": Danbooru.config.canonical_app_name)
+        .headers("Accept-Encoding": "gzip")
         .use(:auto_inflate)
         .use(redirector: { max_redirects: MAX_REDIRECTS })
         .use(:session)
     end
 
+    # The default HTTP client for requests to external websites. This includes API calls to external services, fetching source data, and downloading images.
+    def self.external
+      new.proxy.public_only.headers("User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0")
+    end
+
+    # The default HTTP client for API calls to internal services controlled by Danbooru.
+    def self.internal
+      new.headers("User-Agent": "#{Danbooru.config.canonical_app_name}/#{Rails.application.config.x.git_hash}")
+    end
+
+    def initialize
+      @http ||= Danbooru::Http.default
+    end
+
     def get(url, **options)
       request(:get, url, **options)
     end
diff --git a/app/logical/deep_danbooru_client.rb b/app/logical/deep_danbooru_client.rb
index 26da348fe..f6ab17605 100644
--- a/app/logical/deep_danbooru_client.rb
+++ b/app/logical/deep_danbooru_client.rb
@@ -3,7 +3,7 @@
 class DeepDanbooruClient
   attr_reader :http
 
-  def initialize(http: Danbooru::Http.new)
+  def initialize(http: Danbooru::Http.internal)
     @http = http
   end
 
diff --git a/app/logical/deviant_art_api_client.rb b/app/logical/deviant_art_api_client.rb
index e8372ee3e..b67d63ddf 100644
--- a/app/logical/deviant_art_api_client.rb
+++ b/app/logical/deviant_art_api_client.rb
@@ -21,10 +21,10 @@ class DeviantArtApiClient
   class Error < StandardError; end
   BASE_URL = "https://www.deviantart.com/api/v1/oauth2/"
 
-  attr_reader :client_id, :client_secret
+  attr_reader :client_id, :client_secret, :http
 
-  def initialize(client_id, client_secret)
-    @client_id, @client_secret = client_id, client_secret
+  def initialize(client_id, client_secret, http)
+    @client_id, @client_secret, @http = client_id, client_secret, http
   end
 
   # https://www.deviantart.com/developers/http/v1/20160316/deviation_single/bcc296bdf3b5e40636825a942a514816
@@ -54,7 +54,7 @@ class DeviantArtApiClient
     params = { access_token: access_token.token, **params }
 
     url = URI.join(BASE_URL, url).to_s
-    response = Danbooru::Http.cache(1.minute).get(url, params: params)
+    response = http.cache(1.minute).get(url, params: params)
     response.parse.with_indifferent_access
   end
 
diff --git a/app/logical/discord_api_client.rb b/app/logical/discord_api_client.rb
index dd42f089b..75b1ca06f 100644
--- a/app/logical/discord_api_client.rb
+++ b/app/logical/discord_api_client.rb
@@ -14,7 +14,7 @@ class DiscordApiClient
 
   attr_reader :application_id, :bot_token, :http
 
-  def initialize(application_id: Danbooru.config.discord_application_client_id, bot_token: Danbooru.config.discord_bot_token, http: Danbooru::Http.new)
+  def initialize(application_id: Danbooru.config.discord_application_client_id, bot_token: Danbooru.config.discord_bot_token, http: Danbooru::Http.external)
     @application_id = application_id
     @bot_token = bot_token
     @http = http
diff --git a/app/logical/discord_webhook_service.rb b/app/logical/discord_webhook_service.rb
index 815a3d9e5..aadfda873 100644
--- a/app/logical/discord_webhook_service.rb
+++ b/app/logical/discord_webhook_service.rb
@@ -6,7 +6,7 @@
 class DiscordWebhookService
   attr_reader :webhook_id, :webhook_secret, :http
 
-  def initialize(webhook_id: Danbooru.config.discord_webhook_id, webhook_secret: Danbooru.config.discord_webhook_secret, http: Danbooru::Http.new)
+  def initialize(webhook_id: Danbooru.config.discord_webhook_id, webhook_secret: Danbooru.config.discord_webhook_secret, http: Danbooru::Http.external)
     @webhook_id = webhook_id
     @webhook_secret = webhook_secret
     @http = http
diff --git a/app/logical/iqdb_client.rb b/app/logical/iqdb_client.rb
index a40a77733..c0e0c7933 100644
--- a/app/logical/iqdb_client.rb
+++ b/app/logical/iqdb_client.rb
@@ -11,7 +11,7 @@ class IqdbClient
   # Create a new IQDB API client.
   # @param iqdb_url [String] the base URL of the IQDB server
   # @param http [Danbooru::Http] the HTTP client to use
-  def initialize(iqdb_url: Danbooru.config.iqdb_url.to_s, http: Danbooru::Http.new)
+  def initialize(iqdb_url: Danbooru.config.iqdb_url.to_s, http: Danbooru::Http.internal)
     @iqdb_url = iqdb_url.chomp("/")
     @http = http
   end
diff --git a/app/logical/nico_seiga_api_client.rb b/app/logical/nico_seiga_api_client.rb
index 15dd53b92..74a68cc56 100644
--- a/app/logical/nico_seiga_api_client.rb
+++ b/app/logical/nico_seiga_api_client.rb
@@ -7,7 +7,7 @@ class NicoSeigaApiClient
 
   attr_reader :http, :user_session
 
-  def initialize(work_id:, type:, user_session: Danbooru.config.nico_seiga_user_session, http: Danbooru::Http.new)
+  def initialize(work_id:, type:, user_session: Danbooru.config.nico_seiga_user_session, http:)
     @work_id = work_id
     @work_type = type
     @user_session = user_session
diff --git a/app/logical/pixiv_ajax_client.rb b/app/logical/pixiv_ajax_client.rb
index b6f438c48..ecf5cf3b1 100644
--- a/app/logical/pixiv_ajax_client.rb
+++ b/app/logical/pixiv_ajax_client.rb
@@ -365,7 +365,7 @@ class PixivAjaxClient
 
   # @param phpsessid [String] the Pixiv login cookie
   # @param http [Danbooru::Http] the HTTP client to use for Pixiv
-  def initialize(phpsessid, http: Danbooru::Http.new)
+  def initialize(phpsessid, http:)
     @phpsessid = phpsessid
     @http = http
   end
diff --git a/app/logical/reportbooru_service.rb b/app/logical/reportbooru_service.rb
index 2c56368bf..6f23b1acc 100644
--- a/app/logical/reportbooru_service.rb
+++ b/app/logical/reportbooru_service.rb
@@ -7,7 +7,7 @@
 class ReportbooruService
   attr_reader :http, :reportbooru_server
 
-  def initialize(http: Danbooru::Http.new, reportbooru_server: Danbooru.config.reportbooru_server)
+  def initialize(http: Danbooru::Http.internal, reportbooru_server: Danbooru.config.reportbooru_server)
     @reportbooru_server = reportbooru_server
     @http = http.timeout(1)
   end
diff --git a/app/logical/source/extractor.rb b/app/logical/source/extractor.rb
index f720e6a01..3113451c4 100644
--- a/app/logical/source/extractor.rb
+++ b/app/logical/source/extractor.rb
@@ -196,7 +196,7 @@ module Source
 
     # A http client for API requests.
     def http
-      Danbooru::Http.new.proxy.public_only
+      Danbooru::Http.external
     end
 
     # A http client for downloading files.
diff --git a/app/logical/source/extractor/deviant_art.rb b/app/logical/source/extractor/deviant_art.rb
index d9c0f9441..054fcf6c3 100644
--- a/app/logical/source/extractor/deviant_art.rb
+++ b/app/logical/source/extractor/deviant_art.rb
@@ -189,10 +189,7 @@ module Source
       memoize :uuid
 
       def api_client
-        api_client = DeviantArtApiClient.new(
-          Danbooru.config.deviantart_client_id,
-          Danbooru.config.deviantart_client_secret
-        )
+        api_client = DeviantArtApiClient.new(Danbooru.config.deviantart_client_id, Danbooru.config.deviantart_client_secret, http)
         api_client.access_token = Cache.get("da-access-token", 11.weeks) do
           api_client.access_token.to_hash
         end
diff --git a/app/logical/source/extractor/fantia.rb b/app/logical/source/extractor/fantia.rb
index 847213bb3..7bb61ddf8 100644
--- a/app/logical/source/extractor/fantia.rb
+++ b/app/logical/source/extractor/fantia.rb
@@ -157,7 +157,7 @@ class Source::Extractor
     end
 
     def http
-      Danbooru::Http.new.cookies(_session_id: Danbooru.config.fantia_session_id)
+      super.cookies(_session_id: Danbooru.config.fantia_session_id)
     end
   end
 end
diff --git a/app/logical/source/extractor/furaffinity.rb b/app/logical/source/extractor/furaffinity.rb
index 40e733d23..e0b5deb92 100644
--- a/app/logical/source/extractor/furaffinity.rb
+++ b/app/logical/source/extractor/furaffinity.rb
@@ -67,7 +67,7 @@ class Source::Extractor
     end
 
     def http
-      Danbooru::Http.new.cookies(a: Danbooru.config.furaffinity_cookie_a, b: Danbooru.config.furaffinity_cookie_b, sfw: 0)
+      super.cookies(a: Danbooru.config.furaffinity_cookie_a, b: Danbooru.config.furaffinity_cookie_b, sfw: 0)
     end
   end
 end
diff --git a/app/logical/source/extractor/twitter.rb b/app/logical/source/extractor/twitter.rb
index edbfb4f28..c9e8e1450 100644
--- a/app/logical/source/extractor/twitter.rb
+++ b/app/logical/source/extractor/twitter.rb
@@ -130,7 +130,7 @@ class Source::Extractor
     end
 
     def api_client
-      TwitterApiClient.new(Danbooru.config.twitter_api_key, Danbooru.config.twitter_api_secret)
+      TwitterApiClient.new(Danbooru.config.twitter_api_key, Danbooru.config.twitter_api_secret, http: http)
     end
 
     def api_response
diff --git a/app/logical/twitter_api_client.rb b/app/logical/twitter_api_client.rb
index 9e52b055f..b77122a6c 100644
--- a/app/logical/twitter_api_client.rb
+++ b/app/logical/twitter_api_client.rb
@@ -10,7 +10,7 @@ class TwitterApiClient
   # Create a Twitter API client
   # @param api_key [String] the Twitter API key
   # @param api_secret [String] the Twitter API secret
-  def initialize(api_key, api_secret, http: Danbooru::Http.new)
+  def initialize(api_key, api_secret, http:)
     @api_key, @api_secret, @http = api_key, api_secret, http
   end