--- title: "Binding non-WWW Cloudflare domain in Vercel" description: "Solving the issue where binding a Cloudflare-managed non-WWW apex domain to Vercel doesn't take effect, by correcting the DNS A record IP." canonical_url: "https://blog.markkulab.net/en/post/binding-non-www-cloudflare-domain-in-vercel" author: "Mark Ku" author_url: "https://blog.markkulab.net/en/author/mark-ku" site: "Mark Ku's Tech Notes" date_published: "2022-11-06 01:01:01 +0800" category: "Infra" tags: ["cloudflare", "dns", "vercel", "domain", "seo", "infra"] language: "en" license: "CC BY 4.0" license_url: "https://creativecommons.org/licenses/by/4.0/" attribution: "when reusing or quoting, credit the author and link back to the original" --- # Binding non-WWW Cloudflare domain in Vercel ### Problem Recently our campoany new website migrate to Vercel. The old webiste domain is [non-WWW](https://www.searchenginejournal.com/www-vs-non-www-seo/272043/). Consider the original website SEO. We need bindding second domain in Vercel. but it's not working. ``` https://abc.com ``` ### Referring to [Vercel offical documentation](https://vercel.com/guides/using-cloudflare-with-vercel) to do, but is not working ### Discover nzxt's website，they also using Vercel, but they can bindding second domain ![NZXT.com website homepage with email newsletter signup pop-up](https://blog.markkulab.net/content/markku/posts/binding-non-www-cloudflare-domain-in-vercel/images/L5jFwzD.jpg) ### I using online nslookup tool get nzxt's DNS A record https://mxtoolbox.com/ ![MXToolbox DNS lookup for nzxt.com A record showing Amazon IP](https://blog.markkulab.net/content/markku/posts/binding-non-www-cloudflare-domain-in-vercel/images/sCciXcf.png) ### Change our DNS I thing ip is wrong in vercel offical documentation. Modify Cloudfalre DNS A record， from 76.76.21.21 to 76.223.126.88 ![Cloudflare DNS A record for markkulab.net showing IP 76](https://blog.markkulab.net/content/markku/posts/binding-non-www-cloudflare-domain-in-vercel/images/7ac9Vrq.png) ### See it's work ![Browser window displaying markkulab.net website, address bar highlighted](https://blog.markkulab.net/content/markku/posts/binding-non-www-cloudflare-domain-in-vercel/images/kza1Mha.jpg) ### Make sure custom domain setting in Vercel ![Vercel Domains page showing markkulab.net domain configuration](https://blog.markkulab.net/content/markku/posts/binding-non-www-cloudflare-domain-in-vercel/images/MTvHOo2.png) --- ## About this article and its author Originally published on [Mark Ku's Tech Notes](https://blog.markkulab.net/en/post/binding-non-www-cloudflare-domain-in-vercel) License: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) — when reusing or quoting, credit the author and link back to the original ### About the author **[Mark Ku](https://blog.markkulab.net/en/author/mark-ku)** — Software Solution Provider - 10+ years senior software engineer, now an AI Builder - Focused on large-platform architecture — North-American e-commerce, AI SaaS subscription billing - Combining AI Agents and automation to build evolvable product foundations ### Free tools built by the author All of these are free to use: - [Free PDF Sign Tool](https://blog.markkulab.net/en/tools/pdf-sign): Online PDF sign tool — draw, type, or upload a signature, then drag, resize, and download. Everything runs in your browser; nothing is uploaded. - [VS Code Refactory](https://blog.markkulab.net/en/tools/refactory): Refactory is a VS Code refactoring extension: 34 actions plus a 37-rule code-smell inspection layer with a Code Health dashboard, across 18 languages, backed by 534 tests. It learns your repo's conventions: where interfaces live, where DI is registered, whether 'use client' belongs. It ranks files by git churn × complexity so you know what to fix first, and hands any smell to the Claude Code already on your machine. Free to use, and your source never leaves your computer. - [DB-Kit Database Manager](https://blog.markkulab.net/en/tools/db-kit): DB-Kit is a lightweight, cross-platform database manager built with Tauri + Rust + React. Manage MySQL, MariaDB, PostgreSQL, SQL Server, Oracle, SQLite, MongoDB, Redis, Kafka, Elasticsearch and RabbitMQ from one consistent interface: passwords encrypted in the OS keychain, SSH tunnels, full CRUD, a visual query builder, stacked multi-statement result sets, cross-connection data transfer and compare/sync, Excel / CSV import & export, visualized execution plans, ER diagrams, scheduled backups, SQL stress testing with p50–p99 latency percentiles, a 15-rule SQL review engine, Kafka message browsing with monitoring & alerts, a bilingual UI (Traditional Chinese / English), a built-in AI assistant (natural-language SQL, AI review and tuning advice) and the dbk CLI. Free and open source (MIT), with installers for Windows, macOS and Linux. - [VS Code Super Mermaid](https://blog.markkulab.net/en/tools/super-mermaid): Super Mermaid is a VS Code extension for beautiful Mermaid diagrams out of the box: auto-colored live preview, mouse pan & zoom, high-res PNG / SVG export, 21 templates and multiple themes. Free and open source (MIT). - [React Super Mermaid](https://blog.markkulab.net/en/tools/react-super-mermaid): react-super-mermaid is an open-source React component library: render beautiful Mermaid diagrams with a single , with built-in colorful / sketch themes, pan & zoom, in-diagram search, and high-res SVG / PNG export. Lightweight, SSR-safe, fully typed. Free and open source (MIT). - [Jira / Confluence Super Mermaid](https://blog.markkulab.net/en/tools/jira-super-mermaid): An Atlassian Forge app: write Mermaid syntax directly inside a Jira issue or a Confluence page and get flowcharts, sequence diagrams, state machines and Gantt charts. 11 diagram types, SVG / PNG export, light and dark themes, full CJK support. Runs on Atlassian: your diagrams live in your own site and the app calls no third-party service. Free, coming soon to the Atlassian Marketplace. - [Mermaid Live Preview](https://blog.markkulab.net/en/tools/mermaid-preview): Write Mermaid in your browser, see it render instantly, and share the whole diagram as a single link. No sign-up, nothing uploaded to a server, and mermaid.live share links work as-is. - [React Intl Phone Number](https://blog.markkulab.net/en/tools/react-intl-phone-number): react-intl-phone-number is an open-source React component: framework-agnostic and antd-free, with E.164 in/out, a searchable flag / country-code dropdown, configurable validation levels (strict / mobile-strict / loose), themeable CSS, and i18n — phone logic powered by google-libphonenumber. Lightweight and fully typed. Free and open source (MIT). - [Uptime Kuma Cluster](https://blog.markkulab.net/en/tools/uptime-kuma-cluster): Turn single-node Uptime Kuma into a highly available cluster: OpenResty + Lua smart load balancing, shared MariaDB state, health checks and automatic failover, plus cluster-management REST APIs. One Docker Compose command to start. 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