Passend analog zu dem tt_address-Beitrag hier die Config.yaml für IndexedSearch mit einer schönen URL auf der Webseite.

base: 'https://domain.ltd/'
baseVariants: {  }
errorHandling: {  }
languages:
  -
    title: Deutsch
    enabled: true
    base: /de/
    typo3Language: de
    locale: de_DE.UTF-8
    iso-639-1: de
    navigationTitle: Deutsch
    hreflang: de-DE
    direction: ''
    flag: de
    languageId: '0'
  -
    title: English
    enabled: true
    base: /en/
    typo3Language: default
    locale: en_US.UTF-8
    iso-639-1: en
    navigationTitle: English
    hreflang: en-US
    direction: ''
    fallbackType: strict
    fallbacks: '1,0'
    flag: en-us-gb
    languageId: '1'
rootPageId: 1
routeEnhancers:
  PageTypeSuffix:
    type: PageType
    default: /
    index: ''
    map:
      sitemap.xml: 1533906435
      yoast-snippetpreview.json: 1480321830
      /: 0
  ### indexedSearch - START
  IndexedSearchPlugin:
    type: Extbase
    extension: IndexedSearch
    plugin: Pi2
    routes:
      -
        routePath: /req
        _controller: 'Search::search'
        _arguments:
          page: '@widget_0/currentPage'
    defaultController: 'Search::search'
### indexedSearch - END
routes:
  -
    route: robots.txt
    type: staticText
    content: "User-agent: *\r\nDisallow: /typo3/\r\nDisallow: /typo3_src/\r\nAllow: /typo3/sysext/frontend/Resources/Public/*\r\n"