diff --git a/app/generators/elastic_search_bet_id_generator.rb b/app/generators/elastic_search_bet_id_generator.rb
deleted file mode 100644
index 35037fe8..00000000
--- a/app/generators/elastic_search_bet_id_generator.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class ElasticSearchBetIDGenerator
-  def self.generate(query, match_type)
-    "#{query}-#{match_type}"
-  end
-end
diff --git a/app/lib/services.rb b/app/lib/services.rb
index 84a2500f..4e22a91f 100644
--- a/app/lib/services.rb
+++ b/app/lib/services.rb
@@ -8,14 +8,4 @@ def self.publishing_api
       bearer_token: ENV["PUBLISHING_API_BEARER_TOKEN"] || "example",
     )
   end
-
-  # TODO: update RUMMAGER_BEARER_TOKEN to SEARCH_API_BEARER_TOKEN
-  def self.search_api
-    @search_api ||=
-      GdsApi::Search.new(
-        Plek.find("search-api"),
-        api_version: "V2",
-        bearer_token: ENV["RUMMAGER_BEARER_TOKEN"] || "example",
-      )
-  end
 end
diff --git a/app/models/elastic_search_recommended_link.rb b/app/models/elastic_search_recommended_link.rb
deleted file mode 100644
index 2e7b5b3b..00000000
--- a/app/models/elastic_search_recommended_link.rb
+++ /dev/null
@@ -1,36 +0,0 @@
-class ElasticSearchRecommendedLink
-  delegate :format, :link, :title, :description, to: :recommended_link
-
-  def initialize(recommended_link)
-    @recommended_link = recommended_link
-  end
-
-  def body
-    {
-      link:,
-      details: details.to_json,
-    }
-  end
-
-  def details
-    {
-      title:,
-      link:,
-      description:,
-      format:,
-      indexable_content:,
-    }
-  end
-
-  def id
-    link
-  end
-
-  def indexable_content
-    recommended_link.keywords
-  end
-
-private
-
-  attr_reader :recommended_link
-end
diff --git a/app/parsers/bet_params_parser.rb b/app/parsers/bet_params_parser.rb
deleted file mode 100644
index d805dcb5..00000000
--- a/app/parsers/bet_params_parser.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-class BetParamsParser
-  attr_reader :bet_params, :user_id
-
-  def initialize(bet_params, user_id)
-    @bet_params = bet_params
-    @user_id = user_id
-  end
-
-  def bet_attributes
-    bet_params.merge(
-      expiration_date: date_attributes,
-      user_id:,
-      manual: true,
-      is_best: best_bet?,
-      permanent: permanent?,
-    )
-  end
-
-private
-
-  def date_attributes
-    date_complete? ? DateParser.new(**date_hash).date : ""
-  end
-
-  def date_hash
-    bet_params[:expiration_date].to_h.deep_symbolize_keys
-  end
-
-  def date_complete?
-    date_hash.values.reject(&:empty?).count == 3
-  end
-
-  def best_bet?
-    !is_worst_bet?
-  end
-
-  def is_worst_bet?
-    bet_params[:is_worst] == "1"
-  end
-
-  def permanent?
-    bet_params[:permanent] == "1"
-  end
-end
diff --git a/app/parsers/date_parser.rb b/app/parsers/date_parser.rb
deleted file mode 100644
index 7e536316..00000000
--- a/app/parsers/date_parser.rb
+++ /dev/null
@@ -1,15 +0,0 @@
-class DateParser
-  attr_reader :day, :month, :year
-
-  def initialize(day:, month:, year:)
-    @day = day
-    @month = month
-    @year = year
-  end
-
-  def date
-    Time.zone.local(year, month, day)
-  rescue ArgumentError
-    ""
-  end
-end
diff --git a/app/validators/bet_date_validator.rb b/app/validators/bet_date_validator.rb
deleted file mode 100644
index 426ab75d..00000000
--- a/app/validators/bet_date_validator.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-class BetDateValidator < ActiveModel::EachValidator
-  def validate_each(record, attribute, value)
-    @record = record
-    @attribute = attribute
-    @value = value
-
-    validations
-  end
-
-private
-
-  attr_reader :record, :attribute, :value
-
-  def validations
-    if expiration_date_missing?
-      record_error("is invalid")
-    end
-    if expiration_date_in_past?
-      record_error("can't be in the past")
-    end
-  end
-
-  def expiration_date_missing?
-    record.permanent == false && value.nil?
-  end
-
-  def expiration_date_in_past?
-    record.expiration_date.present? && record.expiration_date < Time.zone.today
-  end
-
-  def record_error(msg)
-    record.errors.add(attribute, message: msg)
-  end
-end
diff --git a/app/validators/bet_link_validator.rb b/app/validators/bet_link_validator.rb
deleted file mode 100644
index e3bd1608..00000000
--- a/app/validators/bet_link_validator.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-require "uri"
-
-class BetLinkValidator < ActiveModel::EachValidator
-  def validate_each(record, attribute, value)
-    @record = record
-    @attribute = attribute
-    uri = parse(value)
-
-    return record_error("couldn't be parsed as a URL") if value.blank? || uri.nil?
-
-    return validate_external_link(uri, value) if uri&.absolute?
-
-    validate_path(value)
-  end
-
-private
-
-  def validate_external_link(uri, value)
-    if RecommendedLink.find_by(link: value).nil?
-      if %w[www.gov.uk gov.uk].include?(uri.host)
-        record_error("looks like an internal link so should just be a path: use /random, not gov.uk/random.")
-      else
-        record_error("looks like an external link, so you should first create a recommended link in search admin (click External links)")
-      end
-    end
-
-    unless uri.is_a?(URI::HTTP)
-      record_error("looks like an external link, so you should prepend it with http:// or https://, like https://#{value}")
-    end
-  end
-
-  def validate_path(value)
-    if value.nil? || value[0] != "/"
-      record_error("looks like an internal link, so should be formatted like /my-link, with a forward slash")
-    end
-  end
-
-  def record_error(msg)
-    @record.errors.add(@attribute, message: msg)
-  end
-
-  def parse(value)
-    URI.parse(value)
-  rescue URI::InvalidURIError
-    nil
-  end
-end
diff --git a/app/views/similar_search_results/_form.html.erb b/app/views/similar_search_results/_form.html.erb
deleted file mode 100644
index 9d77a425..00000000
--- a/app/views/similar_search_results/_form.html.erb
+++ /dev/null
@@ -1,16 +0,0 @@
-<%= form_tag similar_search_result_path(:result), method: :get do %>
-  <%= render "govuk_publishing_components/components/input", {
-    label: {
-      text: 'Path or URL of search result (eg. /guidance/pupil-premium-reviews)'
-    },
-    name: "base_path",
-    value: base_path,
-    type: "search"
-  } %>
-
-  <%= render "govuk_publishing_components/components/button", {
-    text: "Show similar search results",
-    name: "commit",
-    type: "submit"
-  } %>
-<% end %>
diff --git a/app/views/similar_search_results/_results.html.erb b/app/views/similar_search_results/_results.html.erb
deleted file mode 100644
index 2d87a8f2..00000000
--- a/app/views/similar_search_results/_results.html.erb
+++ /dev/null
@@ -1,32 +0,0 @@
-<div class="govuk-!-margin-top-6 app-table__container" data-module="filterable-table">
-  <%= render "govuk_publishing_components/components/input", {
-    label: {
-      text: "Filter search results"
-    },
-    name: "table-filter",
-    type: "search",
-    search_icon: true,
-    tabindex: 0
-  } %>
-
-  <%= GovukPublishingComponents::AppHelpers::TableHelper.helper(self) do |t| %>
-    <%= t.head do %>
-      <%= t.header "#" %>
-      <%= t.header "Title" %>
-      <%= t.header "Score" %>
-      <%= t.header "Format" %>
-      <%= t.header "Content store document type" %>
-    <% end %>
-    <%= t.body do %>
-      <% results.each_with_index do |result, index| %>
-        <%= t.row do %>
-          <%= t.cell index + 1 %>
-          <%= t.cell link_to(result.title, Plek.new.website_root + result.link, target: 'blank', class: 'govuk-link') %>
-          <%= t.cell result.es_score %>
-          <%= t.cell result.format %>
-          <%= t.cell result.content_store_document_type %>
-        <% end %>
-      <% end %>
-    <% end %>
-  <% end %>
-</div>
diff --git a/app/views/similar_search_results/new.html.erb b/app/views/similar_search_results/new.html.erb
deleted file mode 100644
index 4c16431a..00000000
--- a/app/views/similar_search_results/new.html.erb
+++ /dev/null
@@ -1,3 +0,0 @@
-<%= render "common/page_title", title: "Search for similar search results" %>
-
-<%= render 'form', base_path: base_path %>
diff --git a/app/views/similar_search_results/show.html.erb b/app/views/similar_search_results/show.html.erb
deleted file mode 100644
index 26750b91..00000000
--- a/app/views/similar_search_results/show.html.erb
+++ /dev/null
@@ -1,7 +0,0 @@
-<%= render "common/page_title", title: "Similar search results" %>
-
-<%= render 'form', base_path: base_path %>
-
-<% if results.present? %>
-  <%= render 'results', results: results %>
-<% end %>
diff --git a/config/application.rb b/config/application.rb
index 672f70f5..0468d312 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -58,22 +58,5 @@ class Application < Rails::Application
 
     # Require `belongs_to` associations by default. Previous versions had false.
     config.active_record.belongs_to_required_by_default = false
-
-    # Rotate SHA1 cookies to SHA256 (the new Rails 7 default)
-    # TODO: Remove this after existing user sessions have been rotated
-    # https://guides.rubyonrails.org/v7.0/upgrading_ruby_on_rails.html#key-generator-digest-class-changing-to-use-sha256
-    Rails.application.config.action_dispatch.cookies_rotations.tap do |cookies|
-      salt = Rails.application.config.action_dispatch.authenticated_encrypted_cookie_salt
-      secret_key_base = Rails.application.secrets.secret_key_base
-      next if secret_key_base.blank?
-
-      key_generator = ActiveSupport::KeyGenerator.new(
-        secret_key_base, iterations: 1000, hash_digest_class: OpenSSL::Digest::SHA1
-      )
-      key_len = ActiveSupport::MessageEncryptor.key_len
-      secret = key_generator.generate_key(salt, key_len)
-
-      cookies.rotate :encrypted, secret
-    end
   end
 end
diff --git a/config/initializers/services_and_listeners.rb b/config/initializers/services_and_listeners.rb
deleted file mode 100644
index 1d78bb25..00000000
--- a/config/initializers/services_and_listeners.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-require "gds_api/search"
-
-# Extend the adapters to allow us to request URLs directly.
-module GdsApi
-  class Search < Base
-    def get(path)
-      request_url = "#{base_url}#{path}"
-      get_json(request_url)
-    end
-
-    def delete!(path)
-      request_url = "#{base_url}#{path}"
-      delete_json(request_url)
-    end
-  end
-end
diff --git a/config/initializers/zeitwerk.rb b/config/initializers/zeitwerk.rb
deleted file mode 100644
index 7ec6463a..00000000
--- a/config/initializers/zeitwerk.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-Rails.autoloaders.each do |autoloader|
-  autoloader.inflector.inflect(
-    "elastic_search_bet_id_generator" => "ElasticSearchBetIDGenerator",
-  )
-end
diff --git a/config/sidekiq.yml b/config/sidekiq.yml
deleted file mode 100644
index 5dbd442c..00000000
--- a/config/sidekiq.yml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-:scheduler:
-  :concurrency: 2
-  :schedule:
-    expired_bet_worker:
-      every: '1h'
-      class: ExpiredBetWorker
-    delete_old_bets_worker:
-      cron: '0 5 * * * Europe/London'
-      class: DeleteOldBetsWorker
-    notify_expiring_bets_worker:
-      cron: '0 7 * * * Europe/London'
-      class: NotifyExpiringBetsWorker
diff --git a/features/step_definitions/query_steps.rb b/features/step_definitions/query_steps.rb
deleted file mode 100644
index 52324ca1..00000000
--- a/features/step_definitions/query_steps.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-When(/^I create a new query$/) do
-  create_query(query: "jobs", match_type: "exact")
-end
-
-Then(/^the query should be listed on the query index$/) do
-  check_for_query_on_index_page(query: "jobs", match_type: "exact")
-end
-
-When(/^I edit the query$/) do
-  edit_query(query_text: @query.query, new_query_text: "visas")
-end
-
-Then(/^the edited query should be listed on the query index$/) do
-  check_for_query_on_index_page(query: "visas", match_type: @query.match_type)
-end
-
-When(/^I delete the query$/) do
-  delete_query(query_text: @query.query)
-end
-
-Then(/^the query should not be listed on the query index$/) do
-  check_for_absence_of_query_on_index_page(query: @query.query, match_type: @query.match_type)
-end
-
-When(/^I visit the query$/) do
-  visit query_path(@query || Query.last)
-end
-
-Then(/^I should see the queries search results on the page$/) do
-  expect(page).to have_selector("iframe")
-  expect(find("iframe")[:src]).to include "gov.uk/search/all?keywords=jobs"
-end
diff --git a/features/support/best_bets.rb b/features/support/best_bets.rb
deleted file mode 100644
index 7850558f..00000000
--- a/features/support/best_bets.rb
+++ /dev/null
@@ -1,167 +0,0 @@
-def create_query(user: nil, query: nil, match_type: nil, bets: [])
-  visit queries_path
-  click_on "New query"
-
-  fill_in "Query", with: query if query
-  select match_type.humanize, from: "Match type" if match_type
-
-  click_on "Save"
-
-  unless user == :admin
-    check_query_page_has_no_date_fields
-  end
-  bets.each do |(link, is_best, position, comment, permanent)|
-    fill_in "Link", with: link
-    if is_best
-      fill_in "Position", with: position
-    else
-      check "Is worst bet?"
-    end
-    if permanent == 1
-      check "Make permanent?"
-    end
-    fill_in "Comment", with: comment
-    click_on "Save"
-  end
-end
-
-def edit_query(query_text: nil, new_query_text: nil)
-  visit queries_path
-
-  within(".queries") do
-    click_on query_text
-  end
-
-  click_on "Edit query"
-  fill_in "Query", with: new_query_text
-  click_on "Save"
-end
-
-def delete_query(query_text: nil)
-  visit queries_path
-
-  within(".queries") do
-    click_on query_text
-  end
-
-  click_on "Delete query"
-end
-
-def check_for_query_on_index_page(query: nil, match_type: nil)
-  visit queries_path
-
-  within(".queries .govuk-table__body .govuk-table__row") do
-    expect(page).to have_content(query)
-    expect(page).to have_content(match_type)
-  end
-end
-
-def check_for_bet_on_query_page(permanent: nil, link: nil, is_best: nil, position: nil, query: nil, match_type: nil, comment: nil)
-  query = Query.where(query:, match_type:).first
-  visit query_path(query)
-
-  bet_type = is_best ? "best" : "worst"
-
-  within(".#{bet_type}-bets .govuk-table__body .govuk-table__row") do
-    expect(page).to have_css "td", text: link
-    expect(page).to have_css "td", text: comment
-    expect(page).to have_css "td", text: position if is_best
-    expect(pate).to have_css "td", text: "Permanent" if permanent
-  end
-end
-
-def edit_best_bet(bet:, link:, permanent: nil)
-  visit query_path(bet.query)
-  click_on bet.link
-  if permanent
-    check "Make permanent?"
-  end
-  fill_in "Link", with: link
-  click_on "Save"
-end
-
-def delete_best_bet(query, _best_bet)
-  visit query_path(query)
-
-  within ".best-bets .govuk-table__body .govuk-table__row:first-child" do
-    click_on "Delete"
-  end
-end
-
-def check_for_absence_of_query_on_index_page(query: nil, match_type: nil)
-  visit queries_path
-
-  expect(page).not_to have_content(query)
-  expect(page).not_to have_content(match_type)
-end
-
-def check_absence_of_best_bet_on_query_page(query, link)
-  visit query_path(query)
-  expect(page).not_to have_content(link)
-end
-
-def check_for_queries_in_csv_format(queries)
-  headers, *rows = *CSV.parse(page.body)
-
-  expect(headers).to eq(["query", "match_type", "link", "best/worst", "comment", "status", "position", "last edit date", "author"])
-
-  queries.each do |query|
-    query.bets.each do |bet|
-      expect(rows).to include([query.query, query.match_type, bet.link, "best", "", "Permanent"])
-    end
-  end
-end
-
-def check_search_api_was_sent_an_exact_best_bet_document(query)
-  elasticsearch_doc = build_es_doc_from_query(query)
-  doc_id = "#{query.query}-#{query.match_type}"
-
-  expect(@search_api).to have_received(:add_document).with(
-    doc_id,
-    elasticsearch_doc,
-    "metasearch",
-  )
-end
-
-def check_search_api_was_sent_a_best_bet_delete(query_es_ids)
-  query_es_ids.each do |id|
-    expect(@search_api).to have_received(:delete_document).with(id, "metasearch")
-  end
-end
-
-def check_search_api_was_sent_a_recommended_link_delete(link:, index:)
-  assert_search_api_deleted_item(link, index:)
-end
-
-def confirm_best_bets_elasticsearch_format(dump, queries)
-  queries.each do |query|
-    es_doc_header = {
-      "index" => {
-        "_id" => "#{query.query}-#{query.match_type}",
-        "_type" => "best_bet",
-      },
-    }
-
-    es_doc = build_es_doc_from_query(query)
-    expect(dump).to include("#{es_doc_header.to_json}\n#{es_doc.to_json}")
-  end
-end
-
-def build_es_doc_from_query(query)
-  details_json = {
-    best_bets: query.best_bets.map { |bet| { link: bet.link, position: bet.position } },
-    worst_bets: query.worst_bets.map { |bet| { link: bet.link } },
-  }.to_json
-
-  query_field = "#{query.match_type}_query".to_sym
-
-  {
-    query_field => query.query,
-    details: details_json,
-  }
-end
-
-def check_query_page_has_no_date_fields
-  expect(page).to_not have_content "Make permanent?"
-  expect(page).to_not have_content "Set an expiry date"
-end
diff --git a/features/support/recommended_links.rb b/features/support/recommended_links.rb
index e0bc7a4c..379bc7b9 100644
--- a/features/support/recommended_links.rb
+++ b/features/support/recommended_links.rb
@@ -74,22 +74,6 @@ def check_for_recommended_links_in_csv_format(recommended_links)
   end
 end
 
-def check_search_api_was_sent_an_exact_recommended_link_document(recommended_link:, index:)
-  elasticsearch_doc = build_doc_from_recommended_link(recommended_link)
-  assert_search_api_posted_item(
-    elasticsearch_doc.merge(
-      "_type" => "edition",
-      "link" => recommended_link.link,
-      "_id" => recommended_link.link,
-    ),
-    index:,
-  )
-end
-
-def check_search_api_was_sent_a_recommended_link_delete(link:, index:)
-  assert_search_api_deleted_item(link, index:)
-end
-
 def check_recommended_link_was_published(recommended_link, publishing_count)
   assert_publishing_api_put_content(
     recommended_link.content_id,
@@ -104,20 +88,6 @@ def check_recommended_link_was_unpublished(content_id)
   assert_publishing_api_unpublish(content_id)
 end
 
-def confirm_recommended_links_elasticsearch_format(dump, recommended_links)
-  recommended_links.each do |recommended_link|
-    es_doc_header = {
-      "index" => {
-        "_id" => recommended_link.link,
-        "_type" => recommended_link.format,
-      },
-    }
-
-    es_doc = build_doc_from_recommended_link(recommended_link, include_es_data: true)
-    expect(dump).to include("#{es_doc_header.to_json}\n#{es_doc.to_json}")
-  end
-end
-
 def build_doc_from_recommended_link(recommended_link, include_es_data: false)
   details = {
     title: recommended_link.title,
diff --git a/features/support/rummager.rb b/features/support/rummager.rb
deleted file mode 100644
index 29e061a8..00000000
--- a/features/support/rummager.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-Before "@stub_best_bets" do
-  @search_api = double(:search_api, delete_document: true, add_document: true)
-  allow(Services).to receive(:search_api).and_return(@search_api)
-end
-
-Before "@stub_best_bets_with_404" do
-  @search_api = double(:search_api, add_document: true)
-  allow(@search_api).to receive(:delete_document).and_raise(GdsApi::HTTPNotFound.new(404))
-  allow(Services).to receive(:search_api).and_return(@search_api)
-end
-
-Before "@stub_best_bets_with_500" do
-  @search_api = double(:search_api)
-  allow(@search_api).to receive(:delete_document).and_raise(GdsApi::HTTPClientError.new(500))
-  allow(@search_api).to receive(:add_document).and_raise(GdsApi::HTTPClientError.new(500))
-  allow(Services).to receive(:search_api).and_return(@search_api)
-end
diff --git a/lib/tasks/once_off/remove_council_external_links.rake b/lib/tasks/once_off/remove_council_external_links.rake
deleted file mode 100644
index 326e7cc3..00000000
--- a/lib/tasks/once_off/remove_council_external_links.rake
+++ /dev/null
@@ -1,18 +0,0 @@
-# External links to council homepages are now published and managed
-# by Local Links Manager.
-namespace :once_off do
-  desc "Unpublish all external links that are council homepages"
-  task remove_council_external_links: :environment do
-    non_councils = [
-      "Corporation of London",
-      "Comhairle nan Eilean Siar",
-      "City and County of Swansea",
-    ]
-
-    council_links = RecommendedLink.where("title LIKE '%Council%'") + RecommendedLink.where(title: non_councils)
-    council_links.each do |link|
-      ExternalContentPublisher.unpublish(link)
-      link.destroy!
-    end
-  end
-end
diff --git a/script/cucumber b/script/cucumber
deleted file mode 100755
index 51b721ca..00000000
--- a/script/cucumber
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/usr/bin/env ruby
-
-vendored_cucumber_bin = Dir["#{File.dirname(__FILE__)}/../vendor/{gems,plugins}/cucumber*/bin/cucumber"].first
-if vendored_cucumber_bin
-  load File.expand_path(vendored_cucumber_bin)
-else
-  require "rubygems" unless ENV["NO_RUBYGEMS"]
-  require "cucumber"
-  load Cucumber::BINARY
-end
diff --git a/spec/generators/elastic_search_bet_id_generator_spec.rb b/spec/generators/elastic_search_bet_id_generator_spec.rb
deleted file mode 100644
index a9366c39..00000000
--- a/spec/generators/elastic_search_bet_id_generator_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require "spec_helper"
-
-describe ElasticSearchBetIDGenerator do
-  describe ".generate(query, match_type)" do
-    it "concatenates the `query` and `match_type` with a hyphen" do
-      generated_id = ElasticSearchBetIDGenerator.generate("jobs", "exact")
-      expect(generated_id).to eq("jobs-exact")
-    end
-  end
-end
diff --git a/spec/models/elastic_search_recommended_link_spec.rb b/spec/models/elastic_search_recommended_link_spec.rb
deleted file mode 100644
index ae87576f..00000000
--- a/spec/models/elastic_search_recommended_link_spec.rb
+++ /dev/null
@@ -1,29 +0,0 @@
-require "spec_helper"
-
-describe ElasticSearchRecommendedLink do
-  let(:recommended_link) do
-    create(
-      :recommended_link,
-      title: "Tax",
-      link: "https://www.tax.service.gov.uk/",
-      description: "Self assessment",
-      keywords: "self, assessment, tax",
-      content_id: SecureRandom.uuid,
-    )
-  end
-
-  it "builds an elasticsearch doc from the provided recommended link" do
-    es_recommended_link = ElasticSearchRecommendedLink.new(recommended_link)
-
-    expect(es_recommended_link.body).to eq(
-      link: "https://www.tax.service.gov.uk/",
-      details: {
-        title: "Tax",
-        link: "https://www.tax.service.gov.uk/",
-        description: "Self assessment",
-        format: "recommended-link",
-        indexable_content: "self, assessment, tax",
-      }.to_json,
-    )
-  end
-end