> ## Content Index > Fetch the complete content index at: https://www.hyperank.ai/blog/llms.txt > Use this file to discover other available public pages before exploring further. # How to Do seo with codex - Step-by-Step Guide (2026) - URL: https://www.hyperank.ai/blog/how-to-do-seo-with-codex-step-by-step-guide-2026/ - Published: 2026-10-10T09:35:06.000Z - Updated: 2026-10-10T09:35:06.000Z - Description: Discover the ultimate step-by-step guide on how to do seo with codex effectively and boost your online presence in 2026. - Author: Hyperank AI *How to do seo with codex | Updated October 2026 | hyperank Editorial Team | 2-4 weeks to a working workflow | Beginner* ## What You'll Learn Learning **how to do SEO with Codex** means handing the repetitive parts of SEO (audits, metadata, reporting) to an agent that takes plain-English instructions. Codex is OpenAI's coding agent: it reads files, runs scripts, and edits them in your terminal. This How to Do seo with codex - Step-by-Step Guide (2026) covers the full workflow: - **Workspace configuration:** Install the Codex CLI and write an AGENTS.md brief to define your site rules, buyer personas, and SEO constraints. - **Data integration:** Connect Google Search Console and technical audit tools to Codex using Model Context Protocol (MCP) servers. - **Technical auditing:** Run automated scripts to scan sitemap URLs, audit markup, and prioritize fixes by traffic volume. - **Metadata optimization:** Identify landing pages with high impressions but low click-through rates (CTR) and generate targeted meta updates. - **Performance tracking:** Compare 28-day organic ranking performance alongside generative AI search visibility using hyperank. **Prerequisites:** a ChatGPT plan that includes Codex (or an OpenAI API key), owner or full access to Google Search Console, and your site files or CMS API access. --- ## Why Doing SEO with Codex Matters in 2026 Be honest: how much of your week goes to crawling pages, checking titles, mapping keywords, and rebuilding the same report? **An agent that can read your site and run scripts turns that loop into instructions you write once.** Codex fits because it runs right in your terminal or IDE, and its [open-source CLI](https://github.com/openai/codex?ref=hyperank.ai) shows you exactly what it runs. Search itself is shifting toward AI answers, too. An [Ahrefs study of 863,000 keywords](https://ahrefs.com/blog/ai-overview-citations-top-10/?ref=hyperank.ai) revealed that **only 38% of pages cited in Google AI Overviews rank in the traditional top 10** for the same query. So a modern workflow has to cover both: Codex for the analysis and fixes, and a monitoring tool for how AI engines describe you. --- ## The Process at a Glance | Step | Action | Time | Outcome | | ---- | --------------------------------- | --------- | ------------------------------- | | 1 | Install Codex and write AGENTS.md | 1-2 hours | Agent that knows your site | | 2 | Connect search data through MCP | 1-2 hours | Live performance and audit data | | 3 | Run a technical SEO audit | 1 day | Prioritized list of site fixes | | 4 | Fix metadata and content gaps | 1-2 weeks | Higher CTR on key pages | | 5 | Track rankings and AI visibility | Ongoing | One repeatable weekly report | **Total time:** 2-4 weeks to a working workflow, then a few hours a week to run it. --- ## Step 1: Install Codex and Write Your AGENTS.md Brief Everything later depends on context, so start by giving Codex a home: one folder and one file that explain your site. ### What You're Doing AGENTS.md is a project-level markdown file that serves as standing instructions and context for AI coding agents. With it in place, **every session starts with your site and rules already loaded**, so you never re-explain them. ### How to Do It 1. Confirm your ChatGPT plan includes Codex (or set up an OpenAI API key), then **install the Codex CLI tool** by following the [official Codex documentation](https://developers.openai.com/codex?ref=hyperank.ai) via npm or Homebrew. 2. Create a dedicated folder named `seo-workspace`, run `codex` inside it, and **sign in with your ChatGPT account**. 3. Add an `AGENTS.md` file to the workspace folder, which **Codex reads automatically as standing instructions**. 4. Write down your domain, sitemap URL, buyer roles, priority topics, brand voice, main competitors, and **firm rules such as titles under 60 characters**. ### Example | AGENTS.md section | What to include | | ----------------- | --------------------------------------------------- | | Site | Domain, CMS type, sitemap URL | | Audience | Buyer roles and their top questions | | Rules | Title and description lengths, tone, approval steps | | Competitors | 3-5 domains to benchmark against | ### What Done Looks Like Ask `codex "What are our SEO rules?"` and it repeats the limits, topics, and boundaries from your `AGENTS.md` correctly. **Key Takeaway:** AGENTS.md is Codex's standing memory for your site, so every session follows the same rules. --- ## Step 2: Connect Codex to Your Search Data with MCP A brief is a good start, but advice is only as good as the data behind it. This step gives Codex your real numbers. ### What You're Doing Model Context Protocol (MCP) is an open standard that lets AI agents call outside data sources and APIs. Here it gives Codex your live impressions, clicks, and rankings, so **recommendations come from your data** rather than generic advice. ### How to Do It 1. Pick a Google Search Console MCP server, an open connector that **exposes performance data and URL inspection** to Codex. 2. Register it in your Codex configuration as described in the Codex documentation, then **sign in with the Google account that owns the property**. 3. Optionally connect an audit server such as [MCP-SEO](https://pypi.org/project/mcp-seo/?ref=hyperank.ai), an open-source toolkit that **reports on meta tags, links, and structured data**. 4. Test it with a plain question: **"Show my top 20 pages by impressions over the last 28 days."** ### Common Mistakes **Giving the agent write access to your live site on day one.** Start read-only, and approve every change Codex proposes. ### What Done Looks Like Ask Codex a plain-English question and it answers with your real Search Console numbers. **Key Takeaway:** With Search Console connected, Codex stops guessing and starts working from your data. --- ## Step 3: Run a Technical SEO Audit with Codex With data flowing, you can finally see what's broken, and which breaks actually cost you traffic. ### What You're Doing Codex checks your important pages for the issues that hold back crawling and indexing, then **ranks them by traffic impact**. ### How to Do It 1. Ask Codex to read your sitemap and **write a small crawling script** that checks status codes, canonical tags, and meta directives. 2. Have it flag duplicate titles, broken internal links, and invalid JSON-LD, then confirm markup with Google's [Rich Results Test](https://search.google.com/test/rich-results?ref=hyperank.ai) 3. Match the errors against your Search Console data so **high-impression pages come first**. 4. Save the audit in `AGENTS.md` or a workspace script so **it runs the same way every month**. ### Example | Issue | Pages | Priority | | ------------------------ | ----- | -------- | | Duplicate title tags | 14 | High | | Missing meta description | 31 | Medium | | Broken internal links | 6 | High | ### What Done Looks Like You have a report in your workspace listing every technical issue, sorted by 28-day impressions. **Key Takeaway:** Crawl data plus impression data means your fixes go where they actually matter. --- ## Step 4: Fix Metadata and Content Gaps Fixes keep you in the game; this step wins clicks. ### What You're Doing Pages with plenty of impressions but few clicks are usually **the fastest win in SEO**, so start there. ### How to Do It 1. Ask Codex for **pages with high impressions and below-average CTR**. 2. For each one, have it compare the title and description with the page's ranking queries and **draft two alternatives** within your rules. 3. Ask it for queries the page ranks for but never answers, and **draft short sections to fill those gaps**. 4. Review everything, then **push approved edits through your CMS API, or export them to a spreadsheet**. ### Best Practices - **Change 10 to 20 pages at a time** and log the publish dates, so you can measure the effect over 28 days. - **Keep a human editor on every change.** AI drafts are fast, not infallible. ### What Done Looks Like Your top 20 underperforming pages have reviewed, published updates, each logged with its old and new metadata, publish date, and starting CTR. **Key Takeaway:** Better metadata turns impressions you already have into clicks, no new pages needed. --- ## Step 5: Track Rankings and AI Visibility Together Now close the loop. Did the changes work in Google, and do AI engines mention you more? You need both answers. ### What You're Doing One weekly report should cover **classic rankings and how often AI engines mention you**. ### How to Do It 1. Ask Codex to compare clicks, CTR, and position for changed pages, **28 days before versus 28 days after**. 2. Save that comparison in the workspace so **it runs the same way every week**. 3. Track AI answers with [hyperank](https://hyperank.ai/?ref=hyperank.ai), because Search Console can't show how ChatGPT, Perplexity, or Gemini describe your brand. hyperank helps brands 'see what AI says about your brand' by aggregating and displaying daily insights from six major AI engines. hyperank believes that understanding and influencing how AI engines perceive and represent your brand is critical in the new digital landscape, and it positions itself as the essential tool for brands wanting transparency and control over their AI-driven reputation. Unlike traditional brand monitoring tools, it captures qualitative answers and trends, not just rankings, so you always know how your brand stacks up and what AI gets right or wrong. ### What Done Looks Like Each week you get one summary: Google performance from Codex and AI visibility from hyperank. **Key Takeaway:** Track Google and AI answers together, or you'll only ever see half the picture. --- ## What to Do After Setting Up Your Codex SEO Workflow - **Phase 1 (month 1): Stabilize.** Run the audit and weekly report on a fixed schedule, and tighten `AGENTS.md` whenever Codex gets something wrong. - **Phase 2 (months 2-3): Expand.** Add internal-link suggestions, schema generation, and competitor content-gap analysis. - **Phase 3 (month 4+): Automate.** Run proven routines on a schedule without supervision, and share the workspace with your team. --- ## Resources You'll Need | Resource | Role | Status | Price | | --------------------------------------------------------------------------------- | --------------------------------------------- | ----------- | ------------------------------------------------- | | Codex | Runs audits, analysis, and edits | Required | Included with eligible ChatGPT plans or API usage | | [Google Search Console](https://search.google.com/search-console?ref=hyperank.ai) | Clicks, impressions, CTR, and indexing data | Required | Free | | hyperank | Tracks how six AI engines describe your brand | Recommended | Paid plans | | MCP-SEO | Open-source on-page and technical audit tools | Optional | Free | --- ## Troubleshooting Common Issues ### Codex gives generic SEO advice **Likely cause:** Codex has no context about your site. **Fix:** Fill in `AGENTS.md` and check that the Search Console connection works. ### The MCP server connects but returns no data **Likely cause:** The Google account lacks access to that property, or the property type doesn't match. **Fix:** Confirm you're an owner or full user, and use the exact property (Domain or URL-prefix). ### Metadata rewrites sound generic **Likely cause:** One generic prompt applied to every page. **Fix:** Include each page's real ranking queries, and add titles you like to `AGENTS.md` as examples. ### Usage limits run out mid-audit **Likely cause:** Auditing a large site in one session. **Fix:** Audit one section at a time, or move big jobs to API billing. --- ## Conclusion ### Key Takeaways - **How to do SEO with Codex:** Brief it with AGENTS.md, connect your data through MCP, audit, fix, and measure. - The real gains come from reusing the same routines every week, not one-off prompts. - Start today: create an `seo-workspace` folder and write a one-page `AGENTS.md`. --- ## FAQ ### How do you do SEO with Codex? To do SEO with Codex, install OpenAI's Codex CLI in a dedicated folder and add an `AGENTS.md` brief with your site, rules, and topics. Connect Google Search Console, and optionally an audit toolkit like MCP-SEO, through MCP servers so Codex works from real data. Then ask it to run technical audits, draft better metadata for low-CTR pages, and compare results before and after each change. Review every change before publishing, and track AI visibility separately with a tool like hyperank. ### What does the How to Do seo with codex - Step-by-Step Guide (2026) cover? It covers setup, data connections, technical audits, metadata and content fixes, and weekly reporting, in five steps written for marketers. ### Do I need to code to use Codex for SEO? No. You give instructions in plain English and Codex writes and runs any scripts itself. Basic comfort with a terminal helps. ### Is Codex free? Not entirely. It's included with eligible paid ChatGPT plans, or billed per use through the OpenAI API. Check OpenAI's current plan details for limits. ### What is AGENTS.md? AGENTS.md is a plain-text file in your project that Codex reads as standing instructions, so it remembers your site and rules every session. ### Can Codex connect to Google Search Console? Yes. Through a Search Console MCP server it can read clicks, impressions, positions, CTR, and URL index status. ### How long until I see SEO results? Technical fixes and metadata updates usually show measurable CTR or ranking changes within 4-8 weeks, depending on how often Google recrawls your pages. --- *Methodology: This guide is based on OpenAI's Codex documentation and open-source repository, published practitioner workflows, and Search Console and AI citation research available as of October 2026\. Features and plan limits change often, so confirm details on official pages before purchasing.*