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Environment Variables

Observability

Compute

CDN

Fast Data Transfer

Image Optimization

External Origins

Services

Settings

Billing Build and Deployment Invoices Members Access Groups Agent Drains Alerts Webhooks Security & Privacy

Deployment Protection Passport Microfrontends

Networking Key Management Activity My Notifications Apps

Observability

Compute

CDN

Fast Data Transfer

Image Optimization

External Origins

Deployments

Build Diagnostics

Services

Early Access

Settings

General Build and Deployment Environments Git Deployment Protection Passport Functions Sandboxes Cron Jobs Microfrontends Project Members Drains Alerts Tracing Security Networking Activity Advanced

Flags

Vercel Flags

Marketplace

Resources

Getting Started

Browse Documentation

CDN

Firewall

Observability

Persistent Actions

AI Gateway

Budgets & Spend

Bring Your Own Key

Private Inference

Connect

Sandboxes

Agent

Software Factory

AI Gateway

Bring Your Own Key

Connect

Connect

Sandboxes

Agent

Blackbox

Blackbox

Deployments

Deployments

Observability

Services

Team Settings

My Notifications

Access

Connections

Other

Observability

Deployments

Build Diagnostics

Services

Early Access

Project Settings

Project Members

Build and Deployment

Connections

Other

Environment Variables

Environment Variables

Build and Deployment

Flags

Marketplace

CDN

Observability

External Origins

Fast Data Transfer

Image Optimization

Security Dashboard

Deployment Protection

Firewall

Persistent Actions

AI Gateway

Bring Your Own Key

Budgets & Spend

Private Inference

Connect

Compute

Functions

Sandboxes

Workflows

Other

Container Images

Agent

Software Factory

AI Gateway

Bring Your Own Key

Connect

Connect

Functions

Functions

Sandboxes

Workflows

Observability

Container Images

Agent

Security

Deployment Protection

CDN

Observability

External Origins

Fast Data Transfer

Image Optimization

Configuration

Environment Variables

Build and Deployment

Flags

Billing

Integrations

Integrations

CDN

Manage Vercel's global Content Delivery Network. Learn more

Vercel Regions

Function Regions

Map

Globe

Edge Requests

12h

CDN Caching

12h

ISR

12h

Agent may make mistakes. Verify all outputs.

Environment Variables

Observability

Compute

CDN

Fast Data Transfer

Image Optimization

External Origins

Services

Settings

Billing Build and Deployment Invoices Members Access Groups Agent Drains Alerts Webhooks Security & Privacy

Deployment Protection Passport Microfrontends

Networking Key Management Activity My Notifications Apps

Observability

Compute

CDN

Fast Data Transfer

Image Optimization

External Origins

Deployments

Build Diagnostics

Services

Early Access

Settings

General Build and Deployment Environments Git Deployment Protection Passport Functions Sandboxes Cron Jobs Microfrontends Project Members Drains Alerts Tracing Security Networking Activity Advanced

Flags

Vercel Flags

Marketplace

Resources

Getting Started

Browse Documentation

CDN

Firewall

Observability

Persistent Actions

AI Gateway

Budgets & Spend

Bring Your Own Key

Private Inference

Connect

Sandboxes

Agent

Software Factory

AI Gateway

Bring Your Own Key

Connect

Connect

Sandboxes

Agent

Blackbox

Blackbox

Deployments

Deployments

Observability

Services

Team Settings

My Notifications

Access

Connections

Other

Observability

Deployments

Build Diagnostics

Services

Early Access

Project Settings

Project Members

Build and Deployment

Connections

Other

Environment Variables

Environment Variables

Build and Deployment

Flags

Marketplace

CDN

Observability

External Origins

Fast Data Transfer

Image Optimization

Security Dashboard

Deployment Protection

Firewall

Persistent Actions

AI Gateway

Bring Your Own Key

Budgets & Spend

Private Inference

Connect

Compute

Functions

Sandboxes

Workflows

Other

Container Images

Agent

Software Factory

AI Gateway

Bring Your Own Key

Connect

Connect

Functions

Functions

Sandboxes

Workflows

Observability

Container Images

Agent

Security

Deployment Protection

CDN

Observability

External Origins

Fast Data Transfer

Image Optimization

Configuration

Environment Variables

Build and Deployment

Flags

Billing

Integrations

Integrations

Vercel Regions

Function Regions

Map

Globe

til-blog – CDN Overview – Vercel

Edge Requests

Requests

Error Rate (5xx)

TTFB (p90)

CDN Caching

Hit Rate

Misses

Bypasses

ISR

Hit Rate

Reads

Revalidations

Agent may make mistakes. Verify all outputs.

Environment Variables

Observability

External Origins

Fast Data Transfer

Image Optimization

CDN

CDNCDN

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