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DNS Management

DNS Management

Ultra-fast authoritative DNS with global propagation in seconds. Manage all your records from a single dashboard with automatic GeoDNS routing.

Subdomain Guide

Adding & Configuring Subdomains

Seamlessly accelerate blogs, stores, and staging environments (e.g. blog.yourdomain.com, shop.yourdomain.com, staging.yourdomain.com) with fast.site. Each subdomain is added as its own domain entry and gets its own SSL certificate, caching rules, and analytics.

Method 1: fast.site Managed DNS (Full Setup)

Use this method if your apex domain already uses fast.site nameservers. Subdomains are added directly inside the fast.site DNS panel — no need to touch your external registrar:

  1. 1.Go to Dashboard → Domains → select your apex domain → DNS Records.
  2. 2.Click Add Record and select record type (A for Origin IP or CNAME for Origin Hostname).
  3. 3.Enter the subdomain prefix (e.g. 'blog' or 'shop') in the Name field.
  4. 4.Toggle Proxy Status to ON (Orange Cloud) so Fast Edge Cache™, SSL, and optimization apply.
  5. 5.Click Save. fast.site automatically provisions a dedicated Let's Encrypt SSL certificate within seconds.
Recommended — full edge acceleration with zero external DNS configuration.

Method 2: External DNS Provider (Proxy-Only)

Use this method if your DNS remains with Cloudflare, GoDaddy, Namecheap, or Route53. You add the subdomain to fast.site first, then point your external DNS to fast.site:

  1. 1.Click Add Domain in the fast.site dashboard and enter the full subdomain (e.g. staging.yourdomain.com).
  2. 2.Copy the DNS verification TXT record (e.g. fastsite-verify=...) shown on screen.
  3. 3.Add the TXT verification record at your external DNS provider.
  4. 4.Point the subdomain's A record to the fast.site Edge IP, or CNAME to fastresolver.space.
  5. 5.Click Verify in fast.site. Once confirmed, your subdomain status turns Active with automated SSL.
Keep your existing DNS provider while still getting fast.site edge acceleration on the subdomain.

Supported record types

TypePurposeExample
AIPv4 mappingexample.com → 203.0.113.10
AAAAIPv6 mappingexample.com → 2001:db8::1
CNAMESubdomain mappingwww → example.com
MXEmail routingmail.example.com (Priority 10)
TXTText data / Verificationv=spf1 include:...
SRVService location_sip._tcp.example.com

GeoDNS Routing

GeoDNS resolves your domain to the nearest Edge Server based on the visitor's location. This is automatic for all Full Setup domains.

Visitor in Singapore, SG

Resolves to: Asia Edge Server

Visitor in London, UK

Resolves to: Europe Edge Server

Visitor in New York, USA

Resolves to: North America Edge

Adding Records

  • 1

    Go to your domain → DNS Records → Add Record.

  • 2

    Select the record type (A, CNAME, etc).

  • 3

    Enter Name (@ for apex), Value, and TTL.

  • 4

    Click Save. Changes propagate globally in seconds.