はてなブックマーク

Build real-time serverless video, audio and data applications. Cloudflare Calls is infrastructure for real-time audio/video/data applications. It allows you to build real-time apps without worrying about scaling or regions. It can act as a selective forwarding unit (WebRTC SFU), as a fanout delivery system for broadcasting (WebRTC CDN) or anything in between. Cloudflare Calls runs on Cloudflare’s

Turn your existing regional database into a globally distributed database. Hyperdrive is a service that accelerates queries you make to existing databases, making it faster to access your data from across the globe, irrespective of your users’ location. Hyperdrive supports any Postgres database, including those hosted on AWS, Google Cloud and Neon, as well as Postgres-compatible databases like Coc

This guide will show you how to migrate your Workers from the Service Worker ↗ format to the ES modules ↗ format. There are several reasons to migrate your Workers to the ES modules format: Durable Objects, D1, Workers AI, Vectorize and other bindings can only be used from Workers that use ES modules. Your Worker will run faster. With service workers, bindings are exposed as globals. This means th

With Email Workers you can leverage the power of Cloudflare Workers to implement any logic you need to process your emails and create complex rules. These rules determine what happens when you receive an email. Creating your own rules with Email Workers is as easy or complex as you want. You can begin using one of the starter templates that are pre-populated with code for popular use-cases. These

Public Bucket is a feature that allows users to expose the contents of their R2 buckets directly to the Internet. By default, buckets are never publicly accessible and will always require explicit user permission to enable. Public buckets can be set up in either one of two ways: Expose your bucket as a custom domain under your control. Expose your bucket as a Cloudflare-managed subdomain under htt

You can use Cloudflare Tunnel to connect applications and servers to Cloudflare’s network. Tunnel relies on a piece of software, cloudflared ↗, to create those connections. The same Tunnel can be run from multiple instances of cloudflared, giving you the ability to run many cloudflared replicas to scale your system when incoming traffic changes. In this tutorial, we will walk through running an ap

The HTMLRewriter class allows developers to build comprehensive and expressive HTML parsers inside of a Cloudflare Workers application. It can be thought of as a jQuery-like experience directly inside of your Workers application. Leaning on a powerful JavaScript API to parse and transform HTML, HTMLRewriter allows developers to build deeply functional applications. The HTMLRewriter class should be

Cron Triggers allow users to map a cron expression to a Worker using a scheduled() handler that enables Workers to be executed on a schedule. Cron Triggers are ideal for running periodic jobs, such as for maintenance or calling third-party APIs to collect up-to-date data. Workers scheduled by Cron Triggers will run on underutilized machines to make the best use of Cloudflare’s capacity and route t

Next.js ↗ is an open-source React framework for creating websites and applications. Full-stack (SSR) Static site Resources

Developers can use the TryCloudflare tool to experiment with Cloudflare Tunnel without adding a site to Cloudflare’s DNS. TryCloudflare will launch a process that generates a random subdomain on trycloudflare.com. Requests to that subdomain will be proxied through the Cloudflare network to your web server running on localhost. Follow these instructions to install cloudflared. If you have an older

Welcome to CloudflareExplore guides and tutorials to start building on Cloudflare's platform

Allow a client to request static assets while waiting for the HTML response. Set up an A/B test by controlling what response is served based on cookies. This version supports passing the request through to test and control on the origin, bypassing random assignment.

View tutorials to help you get started with Workers.

1.1.1.1 is Cloudflare’s public DNS resolver. It offers a fast and private way to browse the Internet. DNS resolvers Open external link translate domains like cloudflare.com into the IP addresses necessary to reach the website (like 104.16.123.96). Unlike most DNS resolvers, 1.1.1.1 does not sell user data to advertisers. 1.1.1.1 has also been measured to be the fastest DNS resolver available Open

Create full-stack applications that are instantly deployed to the Cloudflare global network. Deploy your Pages project by connecting to your Git provider, uploading prebuilt assets directly to Pages with Direct Upload or using C3 from the command line.

The Cache API ↗ allows fine grained control of reading and writing from the Cloudflare global network ↗ cache. The Cache API is available globally but the contents of the cache do not replicate outside of the originating data center. A GET /users response can be cached in the originating data center, but will not exist in another data center unless it has been explicitly created. Workers deployed

Cloudflare Tunnel provides you with a secure way to connect your resources to Cloudflare without a publicly routable IP address. With Tunnel, you do not send traffic to an external IP — instead, a lightweight daemon in your infrastructure (cloudflared) creates outbound-only connections to Cloudflare’s global network. Cloudflare Tunnel can connect HTTP web servers, SSH servers, remote desktops, and

To create and manage tunnels, you will need to install and authenticate cloudflared on your origin server. cloudflared is what connects your server to Cloudflare’s global network. You have the option of creating a tunnel via the dashboard or via the command line. We recommend getting started with the dashboard, since it will allow you to manage the tunnel from any machine. Create a remotely-manage

By default, the DNS server ↗ your devices use is provided by your Internet service provider (ISP). Some ISPs and network equipment providers partner with Cloudflare to add safer browsing to their offerings. If your providers are not currently using Cloudflare, you can change the DNS settings on your device or router as detailed in the following instructions. Device or router specific guides Androi

Start the DNS proxy on an address and port in your network. If you do not specify an address and port, it will start listening on localhost:53. DNS (53) is a privileged port, so for the initial demo we will use a different port:

With DNS over HTTPS (DoH), DNS queries and responses are encrypted and sent via the HTTP or HTTP/2 protocols. DoH ensures that attackers cannot forge or alter DNS traffic. DoH uses port 443, which is the standard HTTPS traffic port, to wrap the DNS query in an HTTPS request. DNS queries and responses are camouflaged within other HTTPS traffic, since it all comes and goes from the same port. Config

Build serverless applications and deploy instantly across the globe for exceptional performance, reliability, and scale. Cloudflare Workers provides a serverless ↗ execution environment that allows you to create new applications or augment existing ones without configuring or maintaining infrastructure. Cloudflare Workers runs on Cloudflare’s global network ↗ in hundreds of cities worldwide, offer

Cloudflare Rules allow you to make adjustments to requests and responses, configure Cloudflare settings, and trigger specific actions for matching requests. Rules features require that you proxy the DNS records of your domain (or subdomain) through Cloudflare.

Interact with Cloudflare's products and services via the Cloudflare API