Cloudflare Pages Subdomain Checker — Check Up to 5 Names at Once
Enter up to 5 subdomain names (one per line). Spaces become hyphens. Your site will be at yourname.pages.dev.
One name per line. Spaces become hyphens. Only lowercase letters, numbers and hyphens are kept. Max 5 per check.
Suggested variations (click to add)
Cloudflare Pages subdomains only allow lowercase letters, numbers and hyphens. No underscores or dots.
Want to check this name on other platforms too?
Use the multi-platform checker to see availability across 12+ sites at once.
Check All Platforms at OnceWhat is a Cloudflare Pages subdomain?
Every site deployed on Cloudflare Pages gets a free subdomain at
yourname.pages.dev.
This subdomain is the default public address for your project and is assigned when you
create a Pages project and choose your project name. It serves as a permanent URL or
as an interim address until you connect a custom domain.
Cloudflare Pages is Cloudflare's static site and full-stack web application hosting
platform. Like Netlify and Vercel, it offers Git-based continuous deployment, automatic
HTTPS, and a global edge network. Because Cloudflare's infrastructure spans hundreds of
data centers worldwide, sites on pages.dev
load fast from anywhere. The pages.dev
domain also carries strong authority, making it a popular choice for parasite SEO,
landing pages, and developer side projects.
Cloudflare Pages subdomain rules
- → Length: Between 2 and 63 characters (the DNS label limit).
- → Allowed characters: Lowercase letters (a-z), numbers (0-9), and hyphens (-). No underscores, dots, spaces, or uppercase letters.
- → Start and end: Must start and end with a letter or number. Leading or trailing hyphens are not valid DNS labels.
- → DNS-level uniqueness: Unlike some platforms that reserve names at the application layer, Cloudflare Pages subdomains exist as real DNS records. An unregistered subdomain returns a DNS NXDOMAIN response, meaning the name simply does not exist in DNS at all.
- → Project name = subdomain: The subdomain is determined by your Cloudflare Pages project name. Changing the project name changes the subdomain and releases the old one immediately.
-
→
Custom domain: You can connect any custom domain to a Cloudflare Pages project from your Cloudflare dashboard. The
pages.devsubdomain remains active alongside the custom domain.
Tips for choosing a Cloudflare Pages subdomain
acme-landing.pages.dev rather than an auto-generated name. A descriptive, branded subdomain is easier to share with clients and teammates and looks more professional in links.best-ai-tools.pages.dev is more SEO-effective than a generic or branded name for that specific use case.mybrand-app) and a staging name (e.g. mybrand-staging) at the same time. Cloudflare Pages deploy previews use a different auto-generated URL format, so you will need separate projects for permanent staging environments.pages.dev subdomain is released immediately and can be claimed by any other user. Any existing links, backlinks, or search engine entries pointing to the old URL will break. Rename projects only when you are certain the old URL is not in active use.Why Cloudflare Pages is powerful for developers and SEO
Cloudflare Pages combines the performance of Cloudflare's global edge network with the simplicity of Git-based deployment. Every deploy is served from the nearest Cloudflare data center to the visitor, which means consistently fast load times regardless of where your audience is located. For developers, this performance comes at no extra cost on the free plan.
pages.dev domain carries strong domain authority. Content published on Cloudflare Pages can rank faster than on a new independent domain, making it effective for landing pages, comparison content, and affiliate pages targeting specific keywords.Cloudflare Pages vs Netlify vs Vercel: a quick comparison
All three platforms offer free tiers, Git-based deployment, and global CDN hosting. The key differences come down to bandwidth, framework support, and ecosystem integration.
Frequently asked questions
Yes. You can run up to 5 checks per day at no cost. Each check can include up to 5 subdomain names at once, giving you 25 Cloudflare Pages subdomain checks per day in total.
Very accurate. Cloudflare Pages subdomains exist as real DNS records. An unregistered subdomain has no DNS record at all and returns a DNS resolution failure when checked. This tool uses that DNS-level signal to determine availability: if no DNS record exists, the subdomain is available. If any HTTP response is received, the subdomain is registered. This approach is more definitive than checking HTTP status codes or response body content.
Create a free Cloudflare account, go to the Pages section, create a new project, and choose your project name during setup. The project name becomes your pages.dev subdomain. You can also deploy directly from a Git repository or upload files manually.
Yes. Rename the project in your Cloudflare Pages dashboard under project settings. The old subdomain is released immediately when you rename, so any existing links to the old URL will break. If the old URL has backlinks or is indexed by Google, renaming will cost you that SEO history.
Yes. Cloudflare Pages has a generous free tier that includes unlimited bandwidth, 500 builds per month, unlimited sites, and access to Cloudflare's global edge network. The paid plan (Pro at $20/month) adds more concurrent builds and higher build time limits, but the free tier is sufficient for most projects.
For new content targeting specific keywords, a pages.dev subdomain can rank faster than a brand-new independent domain because it inherits the authority of the pages.dev domain. For long-term brand building, a custom domain on your own name is always the stronger investment. Many practitioners use both: Cloudflare Pages for fast-ranking content pages, with links pointing back to their primary domain.