fix(seo): correct sitemap routes

next-sitemap.config.cjs

@@ -1,13 +1,12 @@
-const SITE_URL =
-  process.env.NEXT_PUBLIC_SERVER_URL ||
-  process.env.VERCEL_PROJECT_PRODUCTION_URL ||
-  'https://example.com'
+const { getSitemapBaseURL } = require('./src/utilities/sitemapBaseURL.cjs')
+
+const SITE_URL = getSitemapBaseURL({ ...process.env, NODE_ENV: 'production' })
 
 /** @type {import('next-sitemap').IConfig} */
 module.exports = {
   siteUrl: SITE_URL,
   generateRobotsTxt: true,
-  exclude: ['/posts-sitemap.xml', '/pages-sitemap.xml', '/*', '/posts/*'],
+  exclude: ['/posts-sitemap.xml', '/pages-sitemap.xml', '/*'],
   robotsTxtOptions: {
     policies: [
       {

src/app/(frontend)/(sitemaps)/pages-sitemap.xml/route.ts

@@ -3,28 +3,22 @@ import { getPayload } from 'payload'
 import config from '@payload-config'
 import { unstable_cache } from 'next/cache'
 
+import { getPublicPublishedQueryOptions } from '@/utilities/publicationQuery'
+import { createSitemapEntry, pageSitemapPath, type SitemapEntry } from '@/utilities/sitemapRoutes'
+
 const getPagesSitemap = unstable_cache(
   async () => {
     const payload = await getPayload({ config })
-    const SITE_URL =
-      process.env.NEXT_PUBLIC_SERVER_URL ||
-      process.env.VERCEL_PROJECT_PRODUCTION_URL ||
-      'https://example.com'
 
     const results = await payload.find({
       collection: 'pages',
-      overrideAccess: false,
-      draft: false,
+      ...getPublicPublishedQueryOptions(),
       depth: 0,
       limit: 1000,
       pagination: false,
-      where: {
-        _status: {
-          equals: 'published',
-        },
-      },
       select: {
         slug: true,
+        spaPath: true,
         updatedAt: true,
       },
     })
@@ -32,15 +26,8 @@ const getPagesSitemap = unstable_cache(
     const dateFallback = new Date().toISOString()
 
     const sitemap = results.docs
-      ? results.docs
-          .filter((page) => Boolean(page?.slug))
-          .map((page) => {
-            return {
-              loc: page?.slug === 'home' ? `${SITE_URL}/` : `${SITE_URL}/${page?.slug}`,
-              lastmod: page.updatedAt || dateFallback,
-            }
-          })
-      : []
+      .map((page) => createSitemapEntry(page, pageSitemapPath(page), dateFallback))
+      .filter((entry): entry is SitemapEntry => Boolean(entry))
 
     return sitemap
   },

src/app/(frontend)/(sitemaps)/posts-sitemap.xml/route.ts

@@ -3,44 +3,55 @@ import { getPayload } from 'payload'
 import config from '@payload-config'
 import { unstable_cache } from 'next/cache'
 
+import { getPublicPublishedQueryOptions } from '@/utilities/publicationQuery'
+import { createSitemapEntry, detailSitemapPath, type SitemapEntry } from '@/utilities/sitemapRoutes'
+
+const sitemapCollections = [
+  { collection: 'posts', prefix: '/presse/blog' },
+  { collection: 'events', prefix: '/presse/events' },
+  { collection: 'preistraeger', prefix: '/preistraeger' },
+] as const
+
 const getPostsSitemap = unstable_cache(
   async () => {
     const payload = await getPayload({ config })
-    const SITE_URL =
-      process.env.NEXT_PUBLIC_SERVER_URL ||
-      process.env.VERCEL_PROJECT_PRODUCTION_URL ||
-      'https://example.com'
 
-    const results = await payload.find({
-      collection: 'posts',
-      overrideAccess: false,
-      draft: false,
-      depth: 0,
-      limit: 1000,
-      pagination: false,
-      where: {
-        _status: {
-          equals: 'published',
-        },
-      },
-      select: {
-        slug: true,
-        updatedAt: true,
-      },
-    })
+    const results = await Promise.all(
+      sitemapCollections.map(({ collection }) =>
+        payload.find({
+          collection,
+          ...getPublicPublishedQueryOptions(),
+          depth: 0,
+          limit: 1000,
+          pagination: false,
+          select: {
+            slug: true,
+            spaPath: true,
+            updatedAt: true,
+          },
+        }),
+      ),
+    )
 
     const dateFallback = new Date().toISOString()
 
-    const sitemap = results.docs
-      ? results.docs
-          .filter((post) => Boolean(post?.slug))
-          .map((post) => ({
-            loc: `${SITE_URL}/posts/${post?.slug}`,
-            lastmod: post.updatedAt || dateFallback,
-          }))
-      : []
+    return results.flatMap((result, index) => {
+      const { prefix } = sitemapCollections[index]
 
-    return sitemap
+      return result.docs.reduce<SitemapEntry[]>((entries, document) => {
+        const entry = createSitemapEntry(
+          document,
+          detailSitemapPath(document, prefix),
+          dateFallback,
+        )
+
+        if (entry) {
+          entries.push(entry)
+        }
+
+        return entries
+      }, [])
+    })
   },
   ['posts-sitemap'],
   {

src/collections/Events.ts

@@ -7,6 +7,8 @@ import { eventDetailContent } from '@/spa/eventDetailContent'
 import { generatePreviewPath } from '@/utilities/generatePreviewPath'
 import { slugField } from 'payload'
 
+import { revalidateEvent, revalidateEventDelete } from './Events/hooks/revalidateEvent'
+
 import {
   MetaDescriptionField,
   MetaTitleField,
@@ -273,6 +275,8 @@ export const Events: CollectionConfig = {
     slugField(),
   ],
   hooks: {
+    afterChange: [revalidateEvent],
+    afterDelete: [revalidateEventDelete],
     beforeChange: [populatePublishedAt],
   },
   versions: {

src/collections/Events/hooks/revalidateEvent.ts

@@ -0,0 +1,46 @@
+import type { CollectionAfterChangeHook, CollectionAfterDeleteHook } from 'payload'
+
+import { revalidatePath, revalidateTag } from 'next/cache'
+
+import type { Event } from '../../../payload-types'
+
+const eventPath = (doc: Pick<Event, 'slug' | 'spaPath'>) =>
+  doc.spaPath || `/presse/events/${doc.slug}`
+
+export const revalidateEvent: CollectionAfterChangeHook<Event> = ({
+  doc,
+  previousDoc,
+  req: { payload, context },
+}) => {
+  if (!context.disableRevalidate) {
+    if (doc._status === 'published') {
+      const path = eventPath(doc)
+
+      payload.logger.info(`Revalidating event at path: ${path}`)
+      revalidatePath(path)
+      revalidateTag('posts-sitemap', 'max')
+    }
+
+    if (previousDoc?._status === 'published' && doc._status !== 'published') {
+      const oldPath = eventPath(previousDoc)
+
+      payload.logger.info(`Revalidating old event at path: ${oldPath}`)
+      revalidatePath(oldPath)
+      revalidateTag('posts-sitemap', 'max')
+    }
+  }
+
+  return doc
+}
+
+export const revalidateEventDelete: CollectionAfterDeleteHook<Event> = ({
+  doc,
+  req: { context },
+}) => {
+  if (!context.disableRevalidate) {
+    revalidatePath(eventPath(doc))
+    revalidateTag('posts-sitemap', 'max')
+  }
+
+  return doc
+}

src/collections/Pages/hooks/revalidatePage.ts

@@ -11,7 +11,8 @@ export const revalidatePage: CollectionAfterChangeHook<Page> = ({
 }) => {
   if (!context.disableRevalidate) {
     if (doc._status === 'published') {
-      const path = doc.slug === 'home' ? '/' : `/${doc.slug}`
+      const path =
+        doc.spaPath || (doc.slug === 'home' || doc.slug === 'startseite' ? '/' : `/${doc.slug}`)
 
       payload.logger.info(`Revalidating page at path: ${path}`)
 
@@ -21,7 +22,11 @@ export const revalidatePage: CollectionAfterChangeHook<Page> = ({
 
     // If the page was previously published, we need to revalidate the old path
     if (previousDoc?._status === 'published' && doc._status !== 'published') {
-      const oldPath = previousDoc.slug === 'home' ? '/' : `/${previousDoc.slug}`
+      const oldPath =
+        previousDoc.spaPath ||
+        (previousDoc.slug === 'home' || previousDoc.slug === 'startseite'
+          ? '/'
+          : `/${previousDoc.slug}`)
 
       payload.logger.info(`Revalidating old page at path: ${oldPath}`)
 
@@ -34,7 +39,8 @@ export const revalidatePage: CollectionAfterChangeHook<Page> = ({
 
 export const revalidateDelete: CollectionAfterDeleteHook<Page> = ({ doc, req: { context } }) => {
   if (!context.disableRevalidate) {
-    const path = doc?.slug === 'home' ? '/' : `/${doc?.slug}`
+    const path =
+      doc?.spaPath || (doc?.slug === 'home' || doc?.slug === 'startseite' ? '/' : `/${doc?.slug}`)
     revalidatePath(path)
     revalidateTag('pages-sitemap', 'max')
   }

src/collections/Posts/hooks/revalidatePost.ts

@@ -11,7 +11,7 @@ export const revalidatePost: CollectionAfterChangeHook<Post> = ({
 }) => {
   if (!context.disableRevalidate) {
     if (doc._status === 'published') {
-      const path = doc.spaPath || `/posts/${doc.slug}`
+      const path = doc.spaPath || `/presse/blog/${doc.slug}`
 
       payload.logger.info(`Revalidating post at path: ${path}`)
 
@@ -21,7 +21,7 @@ export const revalidatePost: CollectionAfterChangeHook<Post> = ({
 
     // If the post was previously published, we need to revalidate the old path
     if (previousDoc._status === 'published' && doc._status !== 'published') {
-      const oldPath = previousDoc.spaPath || `/posts/${previousDoc.slug}`
+      const oldPath = previousDoc.spaPath || `/presse/blog/${previousDoc.slug}`
 
       payload.logger.info(`Revalidating old post at path: ${oldPath}`)
 
@@ -34,7 +34,7 @@ export const revalidatePost: CollectionAfterChangeHook<Post> = ({
 
 export const revalidateDelete: CollectionAfterDeleteHook<Post> = ({ doc, req: { context } }) => {
   if (!context.disableRevalidate) {
-    const path = doc?.spaPath || `/posts/${doc?.slug}`
+    const path = doc?.spaPath || `/presse/blog/${doc?.slug}`
 
     revalidatePath(path)
     revalidateTag('posts-sitemap', 'max')

src/collections/Preistraeger.ts

@@ -7,6 +7,11 @@ import { preistraegerDetailContent } from '@/spa/preistraegerDetailContent'
 import { generatePreviewPath } from '@/utilities/generatePreviewPath'
 import { slugField } from 'payload'
 
+import {
+  revalidatePreistraeger,
+  revalidatePreistraegerDelete,
+} from './Preistraeger/hooks/revalidatePreistraeger'
+
 import {
   MetaDescriptionField,
   MetaTitleField,
@@ -372,6 +377,8 @@ export const Preistraeger: CollectionConfig = {
     slugField(),
   ],
   hooks: {
+    afterChange: [revalidatePreistraeger],
+    afterDelete: [revalidatePreistraegerDelete],
     beforeChange: [populatePublishedAt],
   },
   versions: {

src/collections/Preistraeger/hooks/revalidatePreistraeger.ts

@@ -0,0 +1,46 @@
+import type { CollectionAfterChangeHook, CollectionAfterDeleteHook } from 'payload'
+
+import { revalidatePath, revalidateTag } from 'next/cache'
+
+import type { Preistraeger } from '../../../payload-types'
+
+const preistraegerPath = (doc: Pick<Preistraeger, 'slug' | 'spaPath'>) =>
+  doc.spaPath || `/preistraeger/${doc.slug}`
+
+export const revalidatePreistraeger: CollectionAfterChangeHook<Preistraeger> = ({
+  doc,
+  previousDoc,
+  req: { payload, context },
+}) => {
+  if (!context.disableRevalidate) {
+    if (doc._status === 'published') {
+      const path = preistraegerPath(doc)
+
+      payload.logger.info(`Revalidating Preisträger at path: ${path}`)
+      revalidatePath(path)
+      revalidateTag('posts-sitemap', 'max')
+    }
+
+    if (previousDoc?._status === 'published' && doc._status !== 'published') {
+      const oldPath = preistraegerPath(previousDoc)
+
+      payload.logger.info(`Revalidating old Preisträger at path: ${oldPath}`)
+      revalidatePath(oldPath)
+      revalidateTag('posts-sitemap', 'max')
+    }
+  }
+
+  return doc
+}
+
+export const revalidatePreistraegerDelete: CollectionAfterDeleteHook<Preistraeger> = ({
+  doc,
+  req: { context },
+}) => {
+  if (!context.disableRevalidate) {
+    revalidatePath(preistraegerPath(doc))
+    revalidateTag('posts-sitemap', 'max')
+  }
+
+  return doc
+}

src/utilities/publicationQuery.ts

@@ -20,3 +20,18 @@ const previewPublicationQuery = Object.freeze({
 export function getPublicationQueryOptions(isPreview: boolean): PublicationQueryOptions {
   return isPreview ? previewPublicationQuery : publicPublicationQuery
 }
+
+/**
+ * Adds an explicit status predicate for public indexes such as sitemaps while
+ * retaining the same anonymous access and draft behavior as public routes.
+ */
+export function getPublicPublishedQueryOptions() {
+  return {
+    ...getPublicationQueryOptions(false),
+    where: {
+      _status: {
+        equals: 'published' as const,
+      },
+    },
+  }
+}

src/utilities/sitemapBaseURL.cjs

@@ -0,0 +1,58 @@
+const LOCAL_HOSTNAMES = new Set(['localhost', '127.0.0.1', '[::1]'])
+
+/**
+ * Normalize an explicitly configured public URL to a bare origin. Bare deployment
+ * hostnames (such as Vercel's production URL) are treated as HTTPS.
+ *
+ * @param {string} value
+ * @param {{ production?: boolean }} [options]
+ */
+function normalizeSitemapBaseURL(
+  value,
+  { production = process.env.NODE_ENV === 'production' } = {},
+) {
+  const configuredURL = typeof value === 'string' ? value.trim() : ''
+
+  if (!configuredURL) {
+    throw new Error(
+      'Sitemap base URL is not configured. Set NEXT_PUBLIC_SERVER_URL or VERCEL_PROJECT_PRODUCTION_URL.',
+    )
+  }
+
+  const url = new URL(
+    /^[a-z][a-z\d+.-]*:\/\//i.test(configuredURL) ? configuredURL : `https://${configuredURL}`,
+  )
+
+  if (url.protocol !== 'http:' && url.protocol !== 'https:') {
+    throw new Error(`Sitemap base URL must use HTTP or HTTPS, received ${url.protocol}`)
+  }
+
+  const isPlaceholderHostname =
+    url.hostname === 'example.com' || url.hostname.endsWith('.example.com')
+
+  if (
+    production &&
+    (url.protocol !== 'https:' || LOCAL_HOSTNAMES.has(url.hostname) || isPlaceholderHostname)
+  ) {
+    throw new Error('Production sitemap base URL must be a public HTTPS origin.')
+  }
+
+  return url.origin
+}
+
+/**
+ * @param {NodeJS.ProcessEnv | Record<string, string | undefined>} [environment]
+ */
+function getSitemapBaseURL(environment = process.env) {
+  const configuredURL =
+    environment.NEXT_PUBLIC_SERVER_URL || environment.VERCEL_PROJECT_PRODUCTION_URL
+
+  return normalizeSitemapBaseURL(configuredURL || '', {
+    production: environment.NODE_ENV === 'production',
+  })
+}
+
+module.exports = {
+  getSitemapBaseURL,
+  normalizeSitemapBaseURL,
+}

src/utilities/sitemapRoutes.ts

@@ -0,0 +1,65 @@
+import { getSitemapBaseURL } from './sitemapBaseURL.cjs'
+
+type SitemapDocument = {
+  slug?: string | null
+  spaPath?: string | null
+  updatedAt?: string | null
+}
+
+export type SitemapEntry = {
+  loc: string
+  lastmod: string
+}
+
+function normalizeStoredPath(value: unknown, expectedPrefix?: string): string | undefined {
+  if (typeof value !== 'string') return undefined
+
+  const path = value.trim()
+  if (!path.startsWith('/') || path.startsWith('//')) return undefined
+
+  const pathname = new URL(path, 'https://sitemap.invalid').pathname.replace(/\/+$/, '') || '/'
+  if (expectedPrefix && !pathname.startsWith(`${expectedPrefix}/`)) return undefined
+
+  return pathname
+}
+
+function normalizeSlug(value: unknown): string | undefined {
+  if (typeof value !== 'string') return undefined
+
+  const slug = value.trim().replace(/^\/+|\/+$/g, '')
+  return slug || undefined
+}
+
+export function pageSitemapPath(page: SitemapDocument): string | undefined {
+  const storedPath = normalizeStoredPath(page.spaPath)
+  if (storedPath) return storedPath
+
+  const slug = normalizeSlug(page.slug)
+  if (!slug) return undefined
+
+  return slug === 'home' || slug === 'startseite' ? '/' : `/${slug}`
+}
+
+export function detailSitemapPath(
+  document: SitemapDocument,
+  prefix: '/presse/blog' | '/presse/events' | '/preistraeger',
+): string | undefined {
+  const storedPath = normalizeStoredPath(document.spaPath, prefix)
+  if (storedPath) return storedPath
+
+  const slug = normalizeSlug(document.slug)
+  return slug ? `${prefix}/${slug}` : undefined
+}
+
+export function createSitemapEntry(
+  document: SitemapDocument,
+  path: string | undefined,
+  dateFallback: string,
+): SitemapEntry | undefined {
+  if (!path) return undefined
+
+  return {
+    loc: `${getSitemapBaseURL()}${path}`,
+    lastmod: document.updatedAt || dateFallback,
+  }
+}

tests/int/sitemap-routes.int.spec.ts

@@ -0,0 +1,210 @@
+import { createRequire } from 'node:module'
+
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+
+import { getSitemapBaseURL, normalizeSitemapBaseURL } from '@/utilities/sitemapBaseURL.cjs'
+
+type SitemapCollection = 'pages' | 'posts' | 'events' | 'preistraeger'
+
+type SitemapDocument = {
+  _status: 'draft' | 'published'
+  slug?: string
+  spaPath?: string
+  updatedAt?: string
+}
+
+type SitemapFindQuery = {
+  collection: SitemapCollection
+  draft?: boolean
+  overrideAccess?: boolean
+  where?: {
+    _status?: {
+      equals?: string
+    }
+  }
+}
+
+const routeState = vi.hoisted(() => ({
+  docs: {
+    events: [],
+    pages: [],
+    posts: [],
+    preistraeger: [],
+  } as Record<SitemapCollection, SitemapDocument[]>,
+  queries: [] as SitemapFindQuery[],
+}))
+
+vi.mock('@payload-config', () => ({ default: {} }))
+
+vi.mock('next/cache', () => ({
+  unstable_cache: (callback: () => unknown) => callback,
+}))
+
+vi.mock('payload', () => ({
+  getPayload: async () => ({
+    find: async (query: SitemapFindQuery) => {
+      routeState.queries.push(query)
+
+      const isPublishedPublicQuery =
+        query.draft === false &&
+        query.overrideAccess === false &&
+        query.where?._status?.equals === 'published'
+
+      return {
+        docs: isPublishedPublicQuery
+          ? routeState.docs[query.collection].filter((document) => document._status === 'published')
+          : routeState.docs[query.collection],
+      }
+    },
+  }),
+}))
+
+import { GET as getPagesSitemap } from '@/app/(frontend)/(sitemaps)/pages-sitemap.xml/route'
+import { GET as getPostsSitemap } from '@/app/(frontend)/(sitemaps)/posts-sitemap.xml/route'
+
+const productionURL = 'https://www.bayerischer-mittelstandspreis.de'
+
+async function sitemapLocations(response: Response): Promise<string[]> {
+  const xml = await response.text()
+  return [...xml.matchAll(/<loc>([^<]+)<\/loc>/g)].map((match) => match[1])
+}
+
+describe('sitemap route generation', () => {
+  beforeEach(() => {
+    process.env.NEXT_PUBLIC_SERVER_URL = `${productionURL}/`
+    process.env.VERCEL_PROJECT_PRODUCTION_URL = ''
+
+    for (const collection of Object.keys(routeState.docs) as SitemapCollection[]) {
+      routeState.docs[collection] = []
+    }
+    routeState.queries = []
+  })
+
+  afterEach(() => {
+    vi.restoreAllMocks()
+  })
+
+  it.each([
+    {
+      label: 'stored homepage path',
+      document: { _status: 'published', slug: 'startseite', spaPath: '/' },
+      expectedPath: '/',
+    },
+    {
+      label: 'home slug fallback',
+      document: { _status: 'published', slug: 'home' },
+      expectedPath: '/',
+    },
+    {
+      label: 'startseite slug fallback',
+      document: { _status: 'published', slug: 'startseite' },
+      expectedPath: '/',
+    },
+    {
+      label: 'normal stored page path',
+      document: { _status: 'published', slug: 'legacy-contact', spaPath: '/kontakt' },
+      expectedPath: '/kontakt',
+    },
+  ] as const)('emits the $label', async ({ document, expectedPath }) => {
+    routeState.docs.pages = [document]
+
+    await expect(sitemapLocations(await getPagesSitemap())).resolves.toEqual([
+      `${productionURL}${expectedPath}`,
+    ])
+  })
+
+  it.each([
+    { collection: 'posts', prefix: '/presse/blog', slug: 'presseartikel' },
+    { collection: 'events', prefix: '/presse/events', slug: 'preisverleihung' },
+    { collection: 'preistraeger', prefix: '/preistraeger', slug: 'muster-gmbh' },
+  ] as const)(
+    'emits $collection detail routes under $prefix',
+    async ({ collection, prefix, slug }) => {
+      routeState.docs[collection] = [
+        {
+          _status: 'published',
+          slug,
+          spaPath: `${prefix}/${slug}`,
+        },
+      ]
+
+      await expect(sitemapLocations(await getPostsSitemap())).resolves.toContain(
+        `${productionURL}${prefix}/${slug}`,
+      )
+    },
+  )
+
+  it('excludes unpublished documents through the established anonymous public query contract', async () => {
+    routeState.docs.pages = [
+      { _status: 'published', slug: 'sichtbar', spaPath: '/sichtbar' },
+      { _status: 'draft', slug: 'entwurf', spaPath: '/entwurf' },
+    ]
+    routeState.docs.posts = [
+      { _status: 'published', slug: 'sichtbar', spaPath: '/presse/blog/sichtbar' },
+      { _status: 'draft', slug: 'entwurf', spaPath: '/presse/blog/entwurf' },
+    ]
+
+    const locations = [
+      ...(await sitemapLocations(await getPagesSitemap())),
+      ...(await sitemapLocations(await getPostsSitemap())),
+    ]
+
+    expect(locations).toContain(`${productionURL}/sichtbar`)
+    expect(locations).toContain(`${productionURL}/presse/blog/sichtbar`)
+    expect(locations.some((location) => location.includes('entwurf'))).toBe(false)
+    expect(routeState.queries).toHaveLength(4)
+    expect(routeState.queries).toEqual(
+      expect.arrayContaining([
+        expect.objectContaining({
+          draft: false,
+          overrideAccess: false,
+          where: { _status: { equals: 'published' } },
+        }),
+      ]),
+    )
+  })
+})
+
+describe('sitemap production base URL', () => {
+  it.each([
+    [
+      'trailing path and slash',
+      'https://www.bayerischer-mittelstandspreis.de/path///',
+      productionURL,
+    ],
+    ['bare deployment hostname', 'bmp-production.vercel.app', 'https://bmp-production.vercel.app'],
+  ])('normalizes a %s', (_label, configuredURL, expectedURL) => {
+    expect(normalizeSitemapBaseURL(configuredURL)).toBe(expectedURL)
+  })
+
+  it('rejects a localhost production origin', () => {
+    expect(() => normalizeSitemapBaseURL('http://localhost:3000', { production: true })).toThrow(
+      'Production sitemap base URL must be a public HTTPS origin.',
+    )
+  })
+
+  it('fails instead of emitting a fallback when no public URL is configured', () => {
+    expect(() => getSitemapBaseURL({ NODE_ENV: 'production' })).toThrow(
+      'Sitemap base URL is not configured.',
+    )
+  })
+
+  it('uses the normalized production origin for the robots sitemap URLs', () => {
+    const require = createRequire(import.meta.url)
+    const configPath = require.resolve('../../next-sitemap.config.cjs')
+
+    delete require.cache[configPath]
+    process.env.NEXT_PUBLIC_SERVER_URL = `${productionURL}/deployment/path/`
+
+    const config = require(configPath) as {
+      robotsTxtOptions: { additionalSitemaps: string[] }
+      siteUrl: string
+    }
+
+    expect(config.siteUrl).toBe(productionURL)
+    expect(config.robotsTxtOptions.additionalSitemaps).toEqual([
+      `${productionURL}/pages-sitemap.xml`,
+      `${productionURL}/posts-sitemap.xml`,
+    ])
+  })
+})