Firebase Hosting: vendor profile

In short

In Firebase Hosting's fixed response order a catch-all rewrite to index.html outranks the custom 404.html. App Hosting, for server-rendered Next.js and Angular apps, requires a billing account. Storage is free up to 10 GB, then $0.026 per GB, and daily transfer is free up to 360 MB.

At a glance

standards.txt firebase-hosting

llms-txt               = no statement
markdown-negotiation   = no statement
markdown-twin          = no statement
initial-html           = partial
real-404               = supports
vary-accept            = no statement

1 supports, 1 partial or announced, 4 no statement.

Firebase Hosting Host, CDN or edge product

Google's static and single-page app hosting on a global CDN, with a fixed response order that ends in a custom 404.html, plus Firebase App Hosting for server-rendered Next.js and Angular apps.

Type: Host, CDN or edge product
Operator, as the facts below state it: Google
Home page: firebase.google.com/products/hosting, answered HTTP 200 on 2026-11-05
Last read: 5 November 2026

What it does for this layer

Firebase Hosting answers in a fixed priority order: reserved /__/* paths, configured redirects, exact-match static content, configured rewrites, the custom 404 page, then the default 404 page. [primary source] source, read 5 November 2026.
A file named 404.html in the Firebase public directory is shown when a request on the domain triggers a 404 Not Found. [primary source] source, read 5 November 2026.
Firebase applies the first matching rule within the redirects and rewrites attributes, and configured redirects take precedence over rewrites. [primary source] source, read 5 November 2026.
With cleanUrls set to true, Firebase Hosting drops the .html extension and answers a request that includes .html with a 301 to the extensionless path. [primary source] source, read 5 November 2026.
Firebase points builders of server-rendered Angular or Next.js apps to Firebase App Hosting; the older framework-aware Hosting integration is described as an early preview. [primary source] source, read 5 November 2026.
Firebase App Hosting builds apps with Cloud Build, serves them on Cloud Run and caches them in Cloud CDN, with preconfigured support for Next.js and Angular. [primary source] source, read 5 November 2026.
Firebase App Hosting offers agent skills for coding agents such as Claude Code, Codex and Cursor to help set up deployments. [primary source] source, read 5 November 2026.
Firebase pricing lists Hosting storage free up to 10 GB and then $0.026 per GB, and data transfer free up to 360 MB a day and then $0.15 per GB. [primary source, 2026-11-05] source, read 5 November 2026.

Products and plans

Plans and prices as the vendor's own pages showed them on the date read.
Product	What it is	Price	As of	Source
Firebase Hosting	Static and single-page app hosting with redirects, rewrites, headers and a custom 404.html.	Free tier, paid plans above it No-cost up to 10 GB storage and 360 MB a day transfer; then 0.026 USD per GB stored and 0.15 USD per GB transferred	2026-11-05	source
Firebase App Hosting	Server-rendered web app hosting on Cloud Run with Cloud CDN caching, preconfigured for Next.js and Angular; requires a billing account.	Usage-based, with a free allowance Firebase pricing says App Hosting requires a billing account	2026-11-05	source

Standards

The six standards this site tracks; no statement means the pages read said nothing.
Standard	Status	What the vendor's pages say	Source
llms-txt	no statement	No llms.txt feature in the Firebase Hosting pages read.	none
markdown-negotiation	no statement	No Accept-header markdown feature in the Firebase Hosting pages read.	none
markdown-twin	no statement	No markdown copy feature in the pages read.	none
initial-html	partial	App Hosting serves server-rendered Next.js and Angular; plain Hosting serves whatever static files the build emits.	source
real-404	supports	A custom 404.html is served for 404 Not Found, after redirects, static matches and rewrites.	source
vary-accept	no statement	Not covered in the pages read.	none

Checks on its own site

Plain-fetch checks ran on https://firebase.google.com/products/hosting; the Ora and Cloudflare scores cover the whole host firebase.google.com.

Readings of firebase.google.com, the vendor's own website, which describe that site and not the product.
Reading	Result	Date
Home page request	HTTP 200; H1 in the initial HTML: yes; 346 words; 1 JSON-LD block	2026-11-05
Request with Accept: text/markdown	HTTP 200, text/markdown, Vary: Accept, Accept-Encoding	2026-11-05
/llms.txt at the host root	HTTP 404, text/html, 96 KB	2026-11-05
A made-up path	HTTP 404	2026-11-05
Ora score, cached	56, grade C	2026-10-21
Cloudflare keyless scan	27, L1 Basic Web Presence	2026-11-05

What it does not do

Firebase Hosting has no prerendering service of its own for client-rendered apps; a catch-all rewrite to index.html sits above the custom 404 page in its priority order.
Firebase App Hosting cannot run on the no-cost plan alone, since Firebase says it requires a billing account.

Related pages on this site

Sources

Firebase Hosting: home page https://firebase.google.com/products/hosting, read 5 November 2026
Configure Hosting behavior | Firebase Hosting https://firebase.google.com/docs/hosting/full-config, read 5 November 2026
Integrate web frameworks with Hosting | Firebase Hosting https://firebase.google.com/docs/hosting/frameworks/frameworks-overview, read 5 November 2026
Firebase App Hosting https://firebase.google.com/docs/app-hosting, read 5 November 2026
Firebase Pricing https://firebase.google.com/pricing, read 5 November 2026

Last reviewed 5 November 2026