drupalcampbristol/core/modules/contact/contact.routing.yml

entity.contact_form.delete_form:
  path: '/admin/structure/contact/manage/{contact_form}/delete'
  defaults:
    _entity_form: 'contact_form.delete'
    _title: 'Delete'
  requirements:
    _entity_access: 'contact_form.delete'

entity.contact_form.collection:
  path: '/admin/structure/contact'
  defaults:
    _entity_list: 'contact_form'
    _title: 'Contact forms'
  requirements:
    _permission: 'administer contact forms'

contact.form_add:
  path: '/admin/structure/contact/add'
  defaults:
    _entity_form: 'contact_form.add'
    _title: 'Add contact form'
  requirements:
    _permission: 'administer contact forms'

entity.contact_form.edit_form:
  path: '/admin/structure/contact/manage/{contact_form}'
  defaults:
    _entity_form: 'contact_form.edit'
    _title: 'Edit contact form'
  requirements:
    _entity_access: 'contact_form.update'

contact.site_page:
  path: '/contact'
  defaults:
    _title: 'Contact'
    _controller: '\Drupal\contact\Controller\ContactController::contactSitePage'
    contact_form: NULL
  requirements:
    _permission: 'access site-wide contact form'

entity.contact_form.canonical:
  path: '/contact/{contact_form}'
  defaults:
    _title: 'Contact'
    _controller: '\Drupal\contact\Controller\ContactController::contactSitePage'
  requirements:
    _entity_access: 'contact_form.view'

entity.user.contact_form:
  path: '/user/{user}/contact'
  defaults:
    _title: 'Contact'
    _controller: '\Drupal\contact\Controller\ContactController::contactPersonalPage'
  requirements:
    _access_contact_personal_tab: 'TRUE'
    user: \d+