Flexa SEO – AEO

Description

Flexa SEO is a complete, privacy-first SEO plugin: title & meta templating, JSON-LD schema, XML sitemaps, Open Graph, robots.txt, IndexNow, and one-click migration from Yoast, Rank Math and SEOPress. It covers the SEO baseline you expect — and then goes one step further than any of them.

What makes it different: the Answer-Engine Readiness Score

AI answer engines (ChatGPT, Perplexity, Claude, Google AI Overviews) now decide whether your content gets quoted — not just ranked. Dozens of plugins will generate an llms.txt file and stop there. Flexa SEO is the only one that measures and scores how quotable each post actually is, right in the block editor:

• A live 0–100 readiness score with a letter grade for the post you’re editing, refreshed on every save.
• An actionable checklist across eight signals answer engines rely on: structured data, a concise meta description, an answer-first opening paragraph, question-style headings, FAQ/Q&A blocks, llms.txt inclusion, a Markdown alternate for crawlers, and content depth.
• Each item comes with a plain-English fix — so writers know exactly what to change to become citable, no guesswork and no external tool.
• A site-wide health Dashboard rolls those scores up across your content: overall SEO / AEO / Technical scores, an issues overview, health breakdowns, prioritised actions, and a “Pages needing attention” list where each page reveals what to fix — with a one-click Enable site-wide button on the checks that are just a settings toggle away (structured data, llms.txt, Markdown alternate).
• Extensible via the flexa_seo_aeo/aeo/readiness_checks filter for themes and add-ons.

This turns “AEO” from a file you generate once into a workflow your team improves post by post — the gap the crowded llms.txt category leaves wide open.

Core SEO

• Title & meta description templating with a token engine (site, post, term, author, date, pagination variables).
• JSON-LD structured data (@graph): Article / BlogPosting / WebPage, WebSite + SearchAction, Organization / Person publisher, and automatic FAQPage from core FAQ blocks.
• Open Graph and Twitter Card tags, canonical URLs, and configurable robots directives (AEO-friendly defaults: max-snippet:-1, max-image-preview:large).
• XML sitemaps (index + per-type sub-sitemaps, image entries) with a branded XSL stylesheet, plus an HTML sitemap shortcode [flexa_seo_aeo_sitemap] and a sitemap block.
• Per-post editing in a classic metabox and a Gutenberg editor sidebar, with one-click migration from Yoast / Rank Math / SEOPress (and read-fallback so nothing breaks mid-move).
• robots.txt management and optional IndexNow ping on publish/update (see External services below).

AI answer-engine tooling

• Native /llms.txt endpoint describing your site for large language models.
• Agent Readiness — advertises a Markdown alternate of each post (?flexa-aeo=md) via a Link header and <link rel="alternate">, and serves a clean, token-cheap Markdown rendering for AI crawlers and coding agents.
• No cloud account and no per-request AI fees: the readiness score and every AEO feature run entirely on your own server.

WooCommerce (optional)

• When WooCommerce is active, emits Product / Offer / AggregateOffer JSON-LD (price, availability, rating) and Open Graph product tags for AI shopping surfaces.

Privacy

• No account, no telemetry, no phone-home. The only outbound request is the optional IndexNow ping you enable yourself (disclosed below).

External services

This plugin connects to one third-party service, and only when you explicitly enable it.

IndexNow (optional — “IndexNow ping” setting)

When the IndexNow feature is turned on, the plugin notifies the IndexNow API each time you publish or update a post so participating search engines (e.g. Microsoft Bing, Yandex) can recrawl the changed URL quickly.

• What is sent: your site host, the changed URL(s), and an IndexNow verification key (a random key the plugin generates and serves at /{key}.txt on your own site). No personal data and no post content are transmitted — only the public URL that changed.
• When: on the publish/update transition of a post, as a non-blocking background request. Nothing is sent while the feature is disabled (it is off by default).
• Endpoint: https://api.indexnow.org/indexnow (operated by Microsoft).

IndexNow is an open protocol. Documentation and terms: https://www.indexnow.org/documentation — Privacy statement (Microsoft, operator of the endpoint): https://privacy.microsoft.com/privacystatement

Source code

The plugin ships compiled JavaScript/CSS for its admin app in assets/dist/. The human-readable source (apps/admin/src/) and its build configuration are included in the plugin package, so no external download is required.

The admin app is built with pnpm, Vite, React and TypeScript:

1. pnpm install
2. pnpm build (or pnpm dev for a watched build)

The .pot translation template is regenerated with pnpm i18n:pot (PHP + vanilla JS via WP-CLI, React strings via a TypeScript-AST extractor in tools/i18n/).