diff --git a/Library/Homebrew/cask/lib/hbc.rb b/Library/Homebrew/cask/lib/hbc.rb
index 5b94a1b55c..780acedf57 100644
--- a/Library/Homebrew/cask/lib/hbc.rb
+++ b/Library/Homebrew/cask/lib/hbc.rb
@@ -16,7 +16,6 @@ require "hbc/container"
 require "hbc/download"
 require "hbc/download_strategy"
 require "hbc/exceptions"
-require "hbc/fetcher"
 require "hbc/installer"
 require "hbc/locations"
 require "hbc/macos"
@@ -28,7 +27,6 @@ require "hbc/system_command"
 require "hbc/topological_hash"
 require "hbc/underscore_supporting_uri"
 require "hbc/url"
-require "hbc/url_checker"
 require "hbc/utils"
 require "hbc/verify"
 require "hbc/version"
diff --git a/Library/Homebrew/cask/lib/hbc/cli.rb b/Library/Homebrew/cask/lib/hbc/cli.rb
index 0108c1621f..d260be4e37 100644
--- a/Library/Homebrew/cask/lib/hbc/cli.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli.rb
@@ -27,7 +27,6 @@ require "hbc/cli/zap"
 require "hbc/cli/abstract_internal_command"
 require "hbc/cli/internal_audit_modified_casks"
 require "hbc/cli/internal_appcast_checkpoint"
-require "hbc/cli/internal_checkurl"
 require "hbc/cli/internal_dump"
 require "hbc/cli/internal_help"
 require "hbc/cli/internal_stanza"
diff --git a/Library/Homebrew/cask/lib/hbc/cli/internal_checkurl.rb b/Library/Homebrew/cask/lib/hbc/cli/internal_checkurl.rb
deleted file mode 100644
index a8c3d5c8f0..0000000000
--- a/Library/Homebrew/cask/lib/hbc/cli/internal_checkurl.rb
+++ /dev/null
@@ -1,19 +0,0 @@
-module Hbc
-  class CLI
-    class InternalCheckurl < AbstractInternalCommand
-      def run
-        casks_to_check = args.empty? ? Hbc.all : args.map(&CaskLoader.public_method(:load))
-        casks_to_check.each do |cask|
-          odebug "Checking URL for Cask #{cask}"
-          checker = UrlChecker.new(cask)
-          checker.run
-          puts checker.summary
-        end
-      end
-
-      def self.help
-        "checks for bad Cask URLs"
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/cask/lib/hbc/fetcher.rb b/Library/Homebrew/cask/lib/hbc/fetcher.rb
deleted file mode 100644
index fb2b743fac..0000000000
--- a/Library/Homebrew/cask/lib/hbc/fetcher.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-require "open3"
-
-module Hbc
-  class Fetcher
-    TIMEOUT = 10
-
-    def self.head(url)
-      if url.to_s =~ /googlecode/
-        googlecode_fake_head(url)
-      else
-        SystemCommand.run("/usr/bin/curl",
-                          args: ["--max-time", TIMEOUT, "--silent", "--location", "--head", url]).stdout
-      end
-    end
-
-    # google code does not properly respond to HTTP HEAD requests, like a jerk
-    # this fakes a HEAD by doing a GET, taking the first 20 lines, then running away
-    def self.googlecode_fake_head(url)
-      command = "curl --max-time #{TIMEOUT} --verbose --location '#{url}' | head -n 20 > /dev/null"
-      stderr = Open3.capture3(command)[1]
-      stderr.split("\n").grep(/^< /).map { |line| line.sub(/^< /, "") }.join("\n")
-    end
-  end
-end
diff --git a/Library/Homebrew/cask/lib/hbc/url_checker.rb b/Library/Homebrew/cask/lib/hbc/url_checker.rb
deleted file mode 100644
index 7076b13c58..0000000000
--- a/Library/Homebrew/cask/lib/hbc/url_checker.rb
+++ /dev/null
@@ -1,78 +0,0 @@
-require "hbc/checkable"
-require "hbc/fetcher"
-
-module Hbc
-  class UrlChecker
-    attr_accessor :cask, :response_status, :headers
-
-    include Checkable
-
-    def initialize(cask, fetcher = Fetcher)
-      @cask = cask
-      @fetcher = fetcher
-      @headers = {}
-    end
-
-    def summary_header
-      "url check result for #{cask}"
-    end
-
-    def run
-      _get_data_from_request
-      return if errors?
-      _check_response_status
-    end
-
-    HTTP_RESPONSES = [
-      "HTTP/1.0 200 OK",
-      "HTTP/1.1 200 OK",
-      "HTTP/1.1 302 Found",
-    ].freeze
-
-    OK_RESPONSES = {
-      "http"  => HTTP_RESPONSES,
-      "https" => HTTP_RESPONSES,
-      "ftp"   => ["OK"],
-    }.freeze
-
-    def _check_response_status
-      ok = OK_RESPONSES[cask.url.scheme]
-      return if ok.include?(@response_status)
-      add_error "unexpected http response, expecting #{ok.map(&:to_s).join(" or ")}, got #{@response_status}"
-    end
-
-    def _get_data_from_request
-      response = @fetcher.head(cask.url)
-
-      if response.empty?
-        add_error "timeout while requesting #{cask.url}"
-        return
-      end
-
-      response_lines = response.split("\n").map(&:chomp)
-
-      case cask.url.scheme
-      when "http", "https" then
-        @response_status = response_lines.grep(/^HTTP/).last
-        if @response_status.respond_to?(:strip)
-          @response_status.strip!
-          unless response_lines.index(@response_status).nil?
-            http_headers = response_lines[(response_lines.index(@response_status) + 1)..-1]
-            http_headers.each do |line|
-              header_name, header_value = line.split(": ")
-              @headers[header_name] = header_value
-            end
-          end
-        end
-      when "ftp" then
-        @response_status = "OK"
-        response_lines.each do |line|
-          header_name, header_value = line.split(": ")
-          @headers[header_name] = header_value
-        end
-      else
-        add_error "unknown scheme for #{cask.url}"
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/test/cask/url_checker_spec.rb b/Library/Homebrew/test/cask/url_checker_spec.rb
deleted file mode 100644
index c505d2cb40..0000000000
--- a/Library/Homebrew/test/cask/url_checker_spec.rb
+++ /dev/null
@@ -1,42 +0,0 @@
-describe Hbc::UrlChecker, :cask do
-  describe "request processing" do
-    let(:cask) { Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/basic-cask.rb") }
-    let(:checker) { Hbc::UrlChecker.new(cask) }
-
-    before(:each) do
-      allow(Hbc::Fetcher).to receive(:head).and_return(response)
-      checker.run
-    end
-
-    context "with an empty response" do
-      let(:response) { "" }
-
-      it "adds an error" do
-        expect(checker.errors).to include("timeout while requesting #{cask.url}")
-      end
-    end
-
-    context "with a valid http response" do
-      let(:response) {
-        <<-EOS.undent
-          HTTP/1.1 200 OK
-          Content-Type: application/x-apple-diskimage
-          ETag: "b4208f3e84967be4b078ecaa03fba941"
-          Content-Length: 23726161
-          Last-Modified: Sun, 12 Aug 2012 21:17:21 GMT
-        EOS
-      }
-
-      it "properly populates the response code and headers" do
-        expect(checker.errors).to be_empty
-        expect(checker.response_status).to eq("HTTP/1.1 200 OK")
-        expect(checker.headers).to eq(
-          "Content-Type"   => "application/x-apple-diskimage",
-          "ETag"           => '"b4208f3e84967be4b078ecaa03fba941"',
-          "Content-Length" => "23726161",
-          "Last-Modified"  => "Sun, 12 Aug 2012 21:17:21 GMT",
-        )
-      end
-    end
-  end
-end