An AI blog generator built around how SEO actually works.

What RankThis does

RankThis is a free AI blog generator. You paste your site URL, it reads your homepage to understand your business, parses your XML sitemap to see every post you already publish, then writes a fully optimised long-form post on a topic you have not covered yet.

Every post it generates includes real internal links anchored to your actual sitemap URLs, a meta description, a suggested URL slug, target keywords, and a live 13-point SEO score. It publishes directly to WordPress and Ghost, or exports as Markdown for any other CMS.

It is free to use. You bring your own Anthropic API key and pay Claude directly at cost — no subscription, no word-count cap, no markup.

Why we built it

The problem with AI content tools is not that they use AI. It is that they produce generic content disconnected from the site it is supposed to help. A post that ignores your existing content creates keyword cannibalization. A post with invented internal links creates broken URLs. A post with no SEO structure needs rewriting before it can do any ranking work.

RankThis solves each of those problems at the generation stage rather than leaving them for you to fix after the fact. Sitemap awareness prevents duplicate topics. Real internal links from your actual URLs pass genuine authority. A live SEO score surfaces structural issues before you publish.

The goal is for a post to come out of the generator ready to edit and publish, not ready to be substantially rewritten.

Who it is for

RankThis delivers the most value to people who publish at volume and need to maintain quality across that volume.

• Agencies managing content for multiple clients — sitemap-aware generation means every client gets contextually relevant posts without a dedicated writer for each account.
• Solo creators and bloggers who need to publish consistently to build topical authority — the generator handles research and structure so the constraint shifts from writing capacity to editing capacity.
• Marketing teams with limited writing resource — a single editor can review and improve a well-structured AI draft far faster than producing the same post from scratch.

The AI model powering RankThis

RankThis uses Claude by Anthropic, currently Claude Sonnet 4.6. Claude was chosen for its long context window, which allows the full sitemap and competitor analysis to be passed as context in a single request, and for the quality of its structured long-form writing. You bring your own Anthropic key, which means you choose the model and control the cost directly.

Editorial standards

Every post generated by RankThis, and every article published on the RankThis blog, follows the same set of editorial standards:

• International English spelling throughout.
• Claims backed by named sources where statistics are cited.
• Key Takeaways section at the top of every post for scannability and AI citation readiness.
• Question-led H3 headings in FAQ sections to match how people actually search.
• No filler, no padding — every section earns its place.

The RankThis blog covers SEO, content strategy, AI search, and content operations. Every post is written to be genuinely useful to someone trying to improve their site's organic performance, not to rank for ranking's sake.

Contact

For support, feedback, or questions, reach us at info@rankthis.site. We read every message.