导航|地址|刷新
Minimize downtime

Skip to contentDocumentation Index
Fetch the complete documentation index at: https://developers.cloudflare.com/fundamentals/llms.txt
Use this file to discover all available pages before exploring further.

Docs Directory API SDKs Changelog

Search

Log in

Cloudflare Fundamentals

/

Overview

Concepts

How Cloudflare DNS works

Traffic flow through Cloudflare

Accounts, zones, and profiles

Cloudflare IP addresses

Get started

Accounts

Create account

Account security

Add abuse contact

Allow Cloudflare access

Leaked Password Notifications

Manage active sessions

Review audit logs - v1

Audit Logs - v2

SCIM provisioning

Overview

Authentik

Microsoft Entra

Okta

Troubleshooting

Secure compromised account

Set up SSO ↗

Zone holds

Find account and zone IDs

Change Super Administrator

OrganizationsBeta

Overview

Organizations for Enterprise

Organizations for MSSP and Distributors

Policy sharing

Limitations and troubleshooting

Members and permissions

Members and permissions

Manage

Policies

Roles

Role scopes

User GroupsNew

Set up dashboard SSO

User profiles

Overview

Verify email address

Log in to Cloudflare

Profile settings

Account recovery

Delete your Cloudflare account

Email address and password

Multi-Factor Email Authentication

Two-factor authentication

Domains

Overview

Add multiple sites via automation

Change your domain version

Manage subdomains

Move a domain between Cloudflare accounts

Onboard a domain

Pause Cloudflare

Redirect one domain to another

Remove a domain

Star domains

Performance

Improve SEO

Maintenance mode

Minimize downtime

Optimize site speed ↗

Prepare for surges or spikes in web traffic ↗

Test speed

Security

Prevent DDoS attacks ↗

Protect your origin server

Recovering from a hacked site

Scan for PCI compliance

Secure your website ↗

Under a DDoS attack?

Cloudflare's API

Get started

Create API token

Get Global API key (legacy)

Get Origin CA keysDeprecated

Token formats

Account API tokens

How to

Make API calls

Create tokens via API

Control API Access

Restrict tokens

Roll tokens

API token template URLs

Reference

REST API ↗API

GraphQL API ↗

Wrangler API ↗

API token permissions

API deprecations

API token templates

Rate limits

SDKs

Troubleshooting

OAuth Applications on Cloudflare

Overview

Create your OAuth client

Integrate your OAuth client with Cloudflare

Authorizing an application

Reference

Migration guides

SCIM migration

Policies

Cloudflare Cookies

Compliance documentation

Content Security Policies (CSPs)

Delivering Videos with Cloudflare

Licenses

Project Cybersafe Schools

Abuse

Overview

Review abuse policies

Complaint types

Providing specific URLs

Customer abuse report obligations

View and submit reports

Blocked Content

SDK ecosystem support policy

Troubleshooting

/cdn-cgi/ endpoint

Account and domain management best practices

Cloudflare and Google Analytics

Cloudflare crawlers

Cloudflare HTTP headers

Cloudflare Ray ID

Cloudy AI agentBeta

Connection limits

Cryptographic Attestation of Personhood

Error responses

Glossary

Markdown for AgentsBeta

Network Layers

Network ports

Partners

Redirects

Scans and penetration testing policy

TCP connections

Under Attack mode

RSS Feeds

Available RSS Feeds

Consuming RSS Feeds

Agent resources

Agent setup ↗

Cloudflare Skills ↗

Code Mode MCP Server ↗

Domain-specific MCP Servers ↗MCP

Cloudflare Fundamentals llms.txt ↗

Cloudflare Fundamentals llms-full.txt ↗

Cloudflare Docs llms.txt ↗

Cloudflare Docs llms-full.txt ↗

Home

/Cloudflare Fundamentals

/Performance

/Minimize downtime

Minimize downtime

Last updated May 5, 2026|Copy as Markdown|View as Markdown|Agent setup

OverviewUpdate and review DNS records Start with unproxied records Confirm record accuracyActivate your domainVerify SSL/TLS edge certificatesOptional - Test configurationUpdate proxy status

When making any change to the routing of an Internet application, there is always a possibility of downtime due to certificate issuance, misconfigured settings, or limitations at your origin server. To avoid downtime when going live, it is important to review the most common configurations.

Update and review DNS records

Before activating your domain on Cloudflare (exact steps depend on your DNS setup), review the DNS records in your Cloudflare account.

Start with unproxied records

With a new domain, make sure all of your DNS records have a proxy status of DNS-only.

This setting prevents Cloudflare from proxying your traffic before you have an active edge certificate or before you have allowed Cloudflare IP addresses.

Confirm record accuracy

Take extra time to confirm the accuracy of your DNS records before activating your domain, paying special attention to:

Zone apex records (example.com)

Subdomain records (www.example.com or blog.example.com)

Email records

If you add DNS records to your authoritative DNS provider between onboarding your domain and activating your domain, you may need to also add these records within Cloudflare.

Activate your domain

Finish the DNS setup for your domain, moving the domain status to Active:

Full setups: Update the authoritative nameservers at your registrar and wait for that change to be authenticated.

Partial setups: Add the verification TXT record to your authoritative DNS and wait for that change to be authenticated.

Verify SSL/TLS edge certificates

Before proxying your traffic through Cloudflare, verify that Cloudflare has an active Edge Certificate for your domain.

For more details about timing and certificate recommendations, refer to Certificate issuance.

Optional - Test configuration

You may want to test your configuration using your local machine or proxying traffic from a development domain or subdomain.

If you experience issues, you should make sure that you have allowed Cloudflare IP addresses at your origin server.

Update proxy status

Once you have verified that your SSL/TLS edge certificate is active and you have allowed Cloudflare IP addresses, change the proxy status of appropriate DNS records to Proxied.

PreviousMaintenance modeNextOptimize site speed ↗

Was this helpful?

YesNo

Edit pageReport issue

On this page

Overview

Update and review DNS records

Start with unproxied records

Confirm record accuracy

Activate your domain

Verify SSL/TLS edge certificates

Optional - Test configuration

Update proxy status

Edit pageReport issue

Getting started
PlansContact salesPartnersFind a partnerStartupsUnder attack?Domain name search

Company
AboutCareersInvestorsPressPress kitGlobal network

Public interest
Project GalileoAthenian ProjectCloudflare for CampaignsProject FairshotImpact/ESG

Compliance
Compliance resourcesTrust HubData ProtectionResponsible AITransparency reportReport abuse

Resources
App innovation reportCloudflare RadarCase studiesStatusSupportEventsBlog

Developers
DocumentationLearning centerCommunity

Solutions
SSE and SASE platformCloudflare AI CloudAI SecurityFrontend Development PlatformMulti-Tenant Platform DevelopmentWeb Security Platform

Start BuildingLog In

© 2026 Cloudflare, Inc.

Privacy policy|Report security issues|Terms of use|Trademark
|
Your privacy choices

Docs

------
导航页打开网址