How to Deploy a Static Site With a Custom Domain

Overview

If your site is made of prebuilt files such as HTML, CSS, JavaScript, images, and generated pages from a static site framework, you can usually host it on a static hosting platform or object storage layer with CDN delivery. The appeal is straightforward: static hosting is fast, low-maintenance, and often easier to secure than a traditional dynamic stack. The part that still causes friction is connecting the site to a custom domain in a way that is reliable and easy to maintain.

At a high level, deploying a static site with a custom domain involves five jobs:

• Build the site into deployable files.
• Publish the build output to your hosting platform.
• Connect DNS so your domain or subdomain points to that host.
• Enable HTTPS and confirm certificate coverage.
• Set redirects and preview rules so production and non-production environments stay clean.

There is no single universal setup because the right DNS records depend on whether you are connecting the apex domain, a www hostname, or a preview or staging subdomain. Some static hosts want an A record, some want a CNAME, and some want you to delegate all DNS through their nameservers. The durable skill is not memorizing one vendor workflow. It is knowing what to verify each time:

• Which hostname will be canonical
• Which DNS zone is authoritative
• Which record type your host requires
• Whether HTTPS is automatic or needs a validation step
• How redirects will behave across apex and subdomains
• How preview environments map to branches or pull requests

Before you touch DNS, decide on the final URL structure. For most sites, that means choosing between these common patterns:

• example.com as canonical, with www.example.com redirecting to it
• www.example.com as canonical, with example.com redirecting to it
• docs.example.com, app.example.com, or another subdomain for a product or documentation site

That one decision simplifies nearly everything that follows.

If you are still deciding where DNS should live, it helps to understand whether you want registrar DNS or a separate managed DNS service. See Managed DNS vs Registrar DNS: Which Should You Use?. If you are changing providers entirely, review Nameserver Change Guide: How to Switch DNS Providers Safely before making the cutover.

Checklist by scenario

Use the checklist that matches your deployment pattern. The steps overlap, but the DNS details differ enough that treating each scenario separately prevents most launch-day confusion.

Scenario 1: Deploying to a subdomain such as www or docs

This is usually the cleanest setup because subdomains typically use a CNAME record, which many static hosts support well.

1. Prepare the site build. Confirm your build command and output directory. Make sure generated asset paths are correct for the chosen hostname and base path.
2. Add the custom domain in your hosting platform. Most platforms require you to declare the hostname before DNS validation and certificate issuance can begin.
3. Create the DNS record. Add a CNAME for the subdomain, such as www or docs, pointing to the target hostname supplied by your host.
4. Check for conflicting records. A hostname cannot usually have both a CNAME and separate A, AAAA, or TXT records at the same label unless your DNS provider supports a flattening feature in a host-specific way.
5. Wait for DNS propagation. Then verify that the subdomain resolves to the expected destination. If propagation seems uneven, consult DNS Propagation Checker Guide: How Long DNS Changes Really Take.
6. Enable or confirm HTTPS. Wait until certificate provisioning completes before forcing HTTPS redirects.
7. Set the canonical redirect. If www is not your canonical hostname, redirect it to the preferred version. If it is canonical, redirect the apex to www.
8. Test a cold visit. Open the site in a private browser window and load both HTTP and HTTPS versions.

This scenario is a strong default for marketing sites, documentation sites, and changelogs because it avoids some of the apex-domain limitations seen on older DNS setups.

Scenario 2: Deploying to the apex domain such as example.com

The apex domain can be slightly trickier because traditional DNS rules do not allow a plain CNAME at the zone apex in many configurations. Some providers support ALIAS, ANAME, or CNAME flattening to work around that. Others require A and AAAA records that point to host-managed IP addresses.

1. Confirm your host supports apex domains. Do not assume that subdomain instructions apply to the root domain.
2. Read the exact DNS requirement from the host. You may need A records, AAAA records, or a flattened alias feature from your DNS provider.
3. Create only the required records. Remove older parking, forwarding, or placeholder records that conflict with your intended setup.
4. Decide how www should behave. In most cases you should still configure www and redirect it to the apex, or make www canonical and redirect apex traffic there.
5. Add the apex domain in the host dashboard. Some platforms will not issue certificates until the hostname is explicitly attached to the project.
6. Verify HTTPS after DNS settles. Certificate issuance on apex domains can take time if DNS validation lags.
7. Test naked-domain requests from multiple networks. Mobile and office resolvers can cache differently, so spot-check resolution from more than one location.

If your host makes apex support feel fragile or overly manual, consider using www as the primary public hostname and redirecting the apex to it. That pattern often produces cleaner portability between providers.

Scenario 3: Using one provider for domain registration and another for hosting

This is extremely common. It also creates confusion because users change records in the registrar account even though DNS is hosted elsewhere.

1. Find the authoritative DNS provider first. Check which nameservers your domain uses.
2. Log in to the correct DNS control panel. Your registrar may not be the place where records are actually managed.
3. Copy the host instructions carefully. Pay attention to whether the host expects the full hostname or only the label.
4. Preserve existing email records. Do not delete MX, TXT, SPF, DKIM, or other mail-related records while editing web records. If email is active on the domain, review How to Launch a Website on a New Domain Without Breaking Email.
5. Lower TTL before planned changes if possible. This can make rollback easier, though it does not eliminate all caching delays.
6. Document the old and new values. Keep a rollback note before saving changes.

This setup is fine as long as your team knows where the source of truth for DNS actually lives.

Scenario 4: Static hosting with branch previews or staging environments

Preview environments are one of the best reasons to use modern developer hosting. They let you review changes before they reach production, but they work best when domain conventions are consistent.

1. Separate production from non-production hostnames. For example: www.example.com for production, staging.example.com for pre-release review.
2. Do not point staging at production by accident. Make sure each hostname maps to the intended environment or branch.
3. Set indexing rules for preview environments. Prevent accidental search indexing if previews are publicly accessible.
4. Use predictable subdomains for long-lived environments. Reserve custom subdomains for production, staging, docs, or demo instances rather than for every short-lived branch.
5. Review environment variables. A static front end may still consume API endpoints, analytics IDs, or feature flags that differ by environment.
6. Keep redirects environment-aware. A production redirect rule copied into staging can hide problems or create loops.

For a broader approach to separating environments, see How to Set Up Staging and Production Domains for a Website.

Scenario 5: Moving a static site from one host to another

Migrations are where small DNS mistakes create visible downtime.

1. Deploy the site fully on the new host before cutover. Confirm build output, assets, forms, redirects, and headers.
2. Add the custom domain to the new project in advance. Many platforms let you prepare validation before the final switch.
3. Reduce TTL ahead of the migration window if practical.
4. Keep the old site available during propagation. Do not decommission it too early.
5. Switch only the necessary DNS records. Avoid unrelated cleanup during the same window.
6. Verify certificate issuance on the new host. HTTPS can lag behind DNS cutover.
7. Monitor redirects and cached assets. Mixed old and new content is common for a short period.

For a full migration checklist, refer to Website Migration Checklist: Move Hosting Providers With Minimal Downtime.

What to double-check

Before you call the launch complete, run through these checks. This is where most of the practical quality control happens.

• Canonical hostname: Only one public version should be treated as primary. Test whether non-canonical versions redirect with a proper permanent redirect.
• DNS record type: Confirm that you used the record type your host requested. A misplaced A record where a CNAME was expected can produce inconsistent behavior.
• Authoritative zone: Verify that you edited the active DNS provider, not an inactive copy at the registrar.
• HTTPS status: Check certificate coverage for both apex and www if both are reachable.
• Redirect chain: Avoid multi-step redirects such as HTTP to apex to www to HTTPS. The clean version is one hop where possible.
• Base URL and asset paths: Static site generators can break if they were built for a different path or hostname.
• 404 behavior: Test a fake URL and make sure your host serves either a proper 404 page or the correct SPA fallback behavior.
• Email records: If the same domain handles email, confirm that MX and related TXT records are unchanged after launch.
• Robots and indexing: Ensure staging or preview environments are not set as the canonical public site.
• DNS TTL and rollback notes: Keep a written record of old values until the launch is stable.

If HTTPS needs closer attention, see SSL Certificate Setup Guide for Domains and Subdomains. If you are still evaluating where static hosting fits against broader hosting models, Cloud Hosting vs Shared Hosting vs VPS: Which Is Right for Your Site? gives useful context.

Common mistakes

Static site deployment is often described as easy because the application layer is simpler. In practice, the errors come from naming, DNS, and assumptions carried over from previous providers.

1. Editing the wrong DNS provider.
A domain may be registered with one company while DNS is served elsewhere. If changes seem to do nothing, start by checking nameservers.

2. Leaving conflicting records in place.
Old A records, forwarding records, and parking entries can override or conflict with your new setup.

3. Forcing HTTPS too early.
If the certificate has not finished provisioning, automatic redirects can lock users into browser errors.

4. Ignoring the non-canonical hostname.
Launching www but forgetting the apex, or vice versa, leaves users with inconsistent entry points and can dilute analytics and search signals.

5. Breaking email while updating DNS.
Web and mail records live in the same zone. Cleanup work done too aggressively can remove essential MX or TXT records.

6. Assuming all static hosts handle SPA routing the same way.
A single-page app often needs rewrite or fallback rules. Without them, deep links may return 404 errors.

7. Using previews without clear domain policy.
Preview URLs are useful, but a messy mix of temporary hostnames and public-facing links can confuse reviewers and leak unfinished work.

8. Migrating without a rollback plan.
Even for a static site, you should know exactly which DNS records to restore if the new host behaves unexpectedly.

9. Treating propagation delays as failure too quickly.
DNS changes do not become visible everywhere at once. Patience matters, but so does verifying with the right tools and from the right network paths.

10. Picking a host without thinking about future growth.
A simple brochure site may be fine on static hosting, but if your project later needs server-side rendering, background jobs, or more custom runtime control, you may move toward cloud VPS hosting or broader developer hosting options. If that is on your horizon, it helps to understand capacity planning early. See How Much Cloud Hosting Do You Need? CPU, RAM, Storage, and Bandwidth Guide and Best VPS Hosting for Developers: Updated Comparison by Price and Specs.

When to revisit

This setup is not something you configure once and forget permanently. Revisit your static site domain and deployment workflow whenever one of these changes happens:

• You change hosting providers. DNS targets, certificate handling, and redirect behavior may all change.
• You change DNS providers or nameservers. Reconfirm every record after the move, not just the web records.
• You add staging, preview, or regional environments. Domain structure that worked for one hostname may become messy at three or four.
• You move from a simple static site to a hybrid app. You may need a different routing model or a different hosting class.
• You launch email on the same domain. Web changes should then be coordinated with MX and TXT records more carefully.
• You refresh brand architecture. New product subdomains, docs domains, or support portals often expose old redirect assumptions.
• You prepare for a seasonal campaign or planned relaunch. This is a good moment to audit DNS, HTTPS, redirects, and preview discipline before traffic spikes.

For a practical recurring routine, keep a short deployment note in your repository or operations docs with:

1. The canonical hostname
2. The authoritative DNS provider
3. The required record values
4. The redirect policy between apex and www
5. The certificate status and renewal method
6. The preview and staging hostname policy
7. The rollback steps

That small document turns a one-off setup into a repeatable launch process.

Final pre-launch checklist:

• Build succeeds from a clean environment
• Custom domain is attached in the hosting platform
• DNS records match the host instructions exactly
• Only one canonical hostname is public
• HTTPS works on every public hostname
• Redirects are intentional and one-hop where possible
• Preview and staging URLs are separated from production
• Email records remain intact
• 404 or SPA fallback behavior is tested
• Rollback notes are saved before closing the change

If you treat this list as part of deployment rather than an afterthought, hosting a static website with a domain becomes much more predictable. The tooling may change over time, but the core workflow remains stable: publish the files, point the right hostname, verify DNS, confirm TLS, and test the user-facing paths before you declare the job done.