# Indie Hackers Launch Post — RankWizAI > Target: ~900 words, founder voice, honest about scope > Audience: IH makers who appreciate technical depth, honesty, and non-enterprise positioning --- ## I built a GSC-native content rewrite tool for solo bloggers, because every other tool ignores the data Google already gives you I run a couple of niche blogs. Two years ago I noticed a pattern: every content tool I tried would tell me to "optimize for keywords" — throw in more synonyms, hit some density score, buy a subscription. Meanwhile my Google Search Console was sitting there with 16 months of actual click and impression data for every single post I'd ever published. Nobody was using it. That bothered me. GSC knows which posts are losing traffic. It knows which queries are gaining impressions but not clicks. It knows whether my CTR dropped after I changed a title. That's a much better starting point than a keyword gap report. So I built [RankWizAI](https://rankwizai.com) to fix that gap. Here's what it actually does: ### The core loop 1. **Connect Google Search Console** — standard OAuth, standard API. No scraping. The data GSC gives you is a 16-month per-page, per-query, per-device, per-country breakdown of impressions, clicks, CTR, and position. 2. **Significance testing, not raw percentages** — a post that dropped from 100 to 80 clicks in a week isn't statistically alarming; that might just be variance. RankWizAI runs a before/after analysis with a significance filter so the "Pages Losing Traffic" report only shows you changes that matter. This was the part that took the longest to get right. 3. **AI rewrite recommendations with your own key** — when the system identifies a page worth rewriting, it generates a recommendation and (if you want) an AI draft. The key thing: it's BYOK (bring your own key). You connect your OpenAI API key. You pay OpenAI directly at their rates. There's no AI markup sitting between you and the model, and you pick which model to use. I hate subscription tools that charge $80/month for something that costs $2 in API calls. 4. **WordPress integration via a native plugin** — approved drafts publish back to WordPress as drafts (or live, if you choose). The plugin is bidirectional: it also sends webhooks back to the app when you change a post, so content snapshots stay in sync and you always have rollback available. 5. **ROI tracking** — 30 days after you mark a recommendation "applied," the system pulls the GSC data for that specific page and calculates whether clicks and CTR actually improved. Not an estimate. Real GSC numbers. ### What I learned building this The GSC API is genuinely great and genuinely underused. Most tools treat it as a nice-to-have export; I built the whole product around it. The API returns `rows` with dimensions (page, query, country, device) and you can request up to 16 months of history. The tricky part is aggregation — CTR and position averages are wrong unless you weight them by impressions. Took me a while to figure out that `AVG(ctr)` across daily rows is not the same CTR a human would calculate. The WordPress HMAC auth was the most fun to build. The plugin and the app share a secret, and every request is signed with HMAC-SHA256 plus a nonce and timestamp. Replay attacks are blocked, stale requests are rejected, and the shared secret is encrypted at rest on both sides with Libsodium. For a solo plugin operating over public HTTP, I wanted to make sure the connection was actually secure. ### Where it stands I launched quietly a few weeks ago. The tool is live at [rankwizai.com](https://rankwizai.com) with a free tier (one site, GSC diagnostics, no AI drafts) and a paid plan (multiple sites, BYOK AI rewrites, WP publishing, ROI tracking). The WP plugin is on its way to the WordPress.org directory. Early feedback from the people using it: the significance testing is what surprises them. They expected to see "you lost traffic on 40 posts this month" and instead they got "3 of those 40 are statistically real drops — start here." ### What I'd love feedback on - **The BYOK model**: is it a feature or a barrier? I think most technical bloggers already have an OpenAI key; I'm not sure about non-technical ones. - **The GSC API integration**: happy to go deep on how it works, the query pagination, dimension weighting — whatever's interesting. - **Pricing**: currently $X/month for the paid tier [unverified — update before posting]. Does that feel right for a solo blogger with 1-3 sites? ### Honest scope limitations This is not a full SEO platform. It doesn't do keyword research, technical audits, or backlink analysis. It does one thing: use your existing GSC data to tell you which posts to rewrite and then help you rewrite them. If you want Ahrefs, this isn't it. If you want a focused tool for the rewrite loop specifically, it might be exactly what you need. I built it because I wanted it. I'm genuinely curious whether other content operators have the same frustration with tools that ignore their GSC data. [Try it free — no credit card for the GSC diagnostic](https://rankwizai.com) --- *Happy to answer any questions about the GSC API integration, the BYOK architecture, the WordPress HMAC auth, or the significance testing approach.*