Choosing a platform for a developer blog in 2026 means picking between three very different mental models: a fully programmable headless CMS (Sanity), a managed developer blogging network (Hashnode), and an open community platform (Dev.to). The right answer depends on how much you value SEO control, Next.js integration depth, and long-term data portability over time-to-first-post. What each platform actually is Sanity is a headless CMS with a hosted content lake, a React-based Studio you deploy yourself, and a GROQ query API. You own the schema, the frontend, and the rendering pipeline. Nothing is opinionated about how your blog looks or where it lives. Hashnode is a managed blogging platform aimed at developers. You write in Markdown, posts live on a Hashnode subdomain by default, but you can map a custom domain. There is a GraphQL API and, as of 2025, a headless mode that lets you pull content into your own Next.js frontend. Dev.to (Forem) is a community publishing platform. Content lives on dev.to under their domain. There is a public REST API. You cannot meaningfully run Dev.to headless in the same way — it is primarily a distribution channel, not a CMS. Feature comparison Feature Sanity Hashnode Dev.to Custom domain (SEO authority) Yes — your domain Yes (custom domain on paid plan) No — dev.to domain only Headless / API-first Yes — GROQ + CDN Yes — GraphQL Headless API Partial — REST API, no real headless mode Next.js integration First-class (official SDK, TypeGen) Usable (community adapters) Manual REST calls only Schema control Full TypeScript schemas Fixed article model Fixed article model Structured data / JSON-LD You implement it Limited, platform-generated Platform-generated, minimal Draft / preview workflow Full draft mode + Presentation Basic draft Basic draft Image CDN Sanity CDN (auto WebP/AVIF) Hashnode CDN Dev.to CDN Free tier 2 datasets, 10 GB bandwidth Free (subdomain), $19/mo custom domain Free Paid tier entry $15/mo (Growth) $19/mo (Pro) $9.99/mo (Pro, no headless unlock) Data portability Full JSON export any time Markdown export Markdown export Community reach None (you build it) Built-in Hashnode feed Large built-in audience SEO and domain authority This is where the platforms diverge most sharply. With Sanity and a self-hosted Next.js frontend, every post lives on your domain. Internal linking, canonical tags, structured data, and sitemap generation are entirely in your hands — which matters for compounding domain authority over years. Hashnode with a custom domain is a legitimate middle ground. Posts on blog.yourdomain.com accumulate PageRank on your domain, not Hashnode's. The trade-off is that your structured data options are limited to what Hashnode's renderer emits, and you cannot add custom JSON-LD per post without the headless mode. Dev.to is a distribution play, not an SEO play. Posts live on dev.to/yourhandle. You can set a canonical URL pointing back to your own site, which is the correct pattern if you cross-post — but many people don't, and those posts build dev.to's authority, not yours. Next.js integration depth Sanity's next-sanity package gives you ISR revalidation via webhooks, typed GROQ queries through TypeGen, draft mode via Presentation, and a live preview overlay. It is the most production-ready pairing covered here. Hashnode's headless mode exposes a GraphQL API. You can fetch posts in a Next.js route handler or server component, but there is no official Next.js SDK. A minimal fetch looks like this: // app/blog/page.tsx — fetching Hashnode posts in a RSC const HASHNODE_ENDPOINT = 'https://gql.hashnode.com'; async function getPosts() { const res = await fetch(HASHNODE_ENDPOINT, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ query: `{ publication(host: "blog.yourdomain.com") { posts(first: 10) { edges { node { title slug publishedAt brief } } } } }`, }), next: { revalidate: 3600 }, // ISR — no webhook revalidation available }); const { data } = await res.json(); return data.publication.posts.edges.map((e: { node: unknown }) => e.node); } Note the revalidate: 3600 — Hashnode does not send webhook payloads to your Next.js revalidation endpoint. You are on time-based ISR, which means stale content for up to an hour after a publish. Sanity + HMAC webhooks gives you on-demand revalidation within seconds. Dev.to integration is just a REST fetch. There is no GraphQL, no revalidation hook, and no schema control. Real running costs For a solo developer blog publishing one to four posts a month: Sanity free tier covers 10 GB CDN bandwidth and two datasets. For a blog with under a few thousand monthly readers, you stay free indefinitely. Growth plan at $15/mo adds 1 TB bandwidth and more API calls. Hashnode free works if you accept the hashnode.dev subdomain. The $19/mo Pro plan unlocks a custom domain, which is the only tier worth using for SEO purposes. No infrastructure to manage. Dev.to is free and stays free. No custom domain, no infrastructure cost, but also no accumulated domain authority. For an agency or product team running a content marketing blog at scale (50k+ monthly readers, 200+ posts), Sanity's Growth plan at $15/mo plus Vercel hosting (roughly $20/mo on the Pro plan) is still cheaper than Hashnode Pro once you factor in what you get: full schema control, webhook revalidation, TypeGen, and an image pipeline that serves AVIF from the same CDN URL. When each platform makes sense Choose Sanity when SEO is a revenue driver, you want full schema control, your blog is part of a larger Next.js site, or you need structured data, custom fields, and a content team workflow. The setup overhead is real but amortised over years of compounding authority. Choose Hashnode headless when you want faster time to first post, do not want to manage a Sanity Studio deployment, and are comfortable with a fixed content model. The GraphQL API is clean and the custom domain option makes it a legitimate SEO choice. Use Dev.to as a cross-posting distribution channel alongside your canonical source — not as your primary CMS. Set canonical URLs on every Dev.to post pointing back to your domain. Never let Dev.to be the only place a post lives if organic search matters to you.