Codesala SEO Content Engine

Codesala SEO Content Engine is a free AI SEO plugin and AI content generator for WordPress. It combines keyword research, AI article writing, on-page SEO optimisation, schema markup and an auto-blog scheduler in one lightweight plugin — and it works on activation without any API key thanks to a built-in zero-config engine that composes articles from real Wikipedia summaries and Google News headlines, with linked citations. Use it as your AI writer, auto blog plugin, keyword research tool, JSON-LD schema generator, and automated content scheduler — all from one admin screen. Compatible with Yoast SEO, Rank Math and All in One SEO. Why use this AI SEO plugin?

• Free forever, no API key required. The built-in engine uses only public data sources — no signup, no credit card.
• Real source-backed content, not template fluff. Every generated article is built from real Wikipedia and Google News data with citation links — useful out of the box.
• Optional best-in-class AI providers. Plug in your own free or paid key from OpenRouter, Groq, Cloudflare Workers AI, Google Gemini, Mistral, OpenAI, or Anthropic Claude — auto-fallback handles rate-limits.
• 6 keyword research sources. Google Trends, Google Suggest, YouTube Suggest, Bing Suggest, Reddit and Wikipedia — all free.
• Schema markup that ranks. JSON-LD Article + FAQPage with safe <script>-context escaping.
• Auto blog scheduler with safety brakes. Daily budget, per-hour throttle, default draft status — protects you from spammy bursts.
• Compatible with leading SEO plugins. Auto-detects Yoast, Rank Math and All in One SEO. Native fallback if none is installed.

Full feature list

• AI content generator with multi-provider fallback chain.
• Keyword research from 6 free sources (Google Trends, Google Suggest, YouTube Suggest, Bing Suggest, Reddit, Wikipedia Pageviews).
• Smart keyword scoring — long-tail boost, source-weighted, used-keyword tracking.
• Source-backed article composer — pulls real Wikipedia summaries + Google News headlines with citation links, even when no LLM is configured.
• Optional AI providers — OpenRouter, Groq, Cloudflare Workers AI, Google Gemini, Mistral, OpenAI, Anthropic Claude. All keys user-supplied.
• Royalty-free images — optional Pexels / Unsplash with SEO-optimised ALT text.
• JSON-LD schema — Article + FAQPage, escaped safely with JSON_HEX_TAG.
• Yoast / Rank Math / AIOSEO compatibility — focus keyword, meta title and description auto-filled.
• Auto blog scheduler — WP-Cron driven, daily budget, per-hour throttle, default draft status.
• Internal linking — picks 3 related posts from your archive on every generation.
• Sitemap pings — Google + Bing notification on publish (optional).
• Google Indexing API support (optional, requires service-account JSON).
• Built-in analytics — views, top posts, top keywords. Cached, no GA needed.

AI providers supported | Provider | Tier | Why use it | | --- | --- | --- | | Codesala built-in engine | Free, no key | Always-on Wikipedia + News engine | | OpenRouter | Free tier | DeepSeek-V3, Llama 3.3 free models | | Groq | Free tier | Fastest Llama 3.3 70B inference | | Cloudflare Workers AI | Free, 10k/day | Llama, Mistral, Gemma | | Google Gemini | Free tier | Gemini 1.5 Flash | | Mistral AI | Free tier | Mistral Small / Medium | | OpenAI | Paid | GPT-4o-mini, top-quality long form | | Anthropic | Paid | Claude 3.5 Haiku / Sonnet | Realistic strategy AI content is risky if you over-do it. Recommended:

• 5–10 high-quality posts/day, not 100.
• Long-tail, low-competition keywords.
• Default status is draft so you review before publishing.

1.1.1

• Fix: SEO plugin score columns now reflect the optimised score. After Fix (or Analyse) runs, the score is pushed into Rank Math (rank_math_seo_score), Yoast SEO (_yoast_wpseo_linkdex + _yoast_wpseo_content_score) and All in One SEO (post meta + wp_aioseo_posts.seo_score direct table update). The "N/A" badge in posts-list views now flips to the actual number.
• When schema is applied, Rank Math's rank_math_rich_snippet is set to article and Yoast's _yoast_wpseo_schema_article_type is set to Article, so the "Schema: Off" indicator flips to "Article".
• Posts scoring 90+ get marked as Pillar Content in Rank Math.
• SEO Optimizer table now falls back to the existing Rank Math / Yoast / AIOSEO score when this plugin has not yet analysed the post — no more empty score column for posts you optimised in the SEO plugin's editor directly.
• Score badge in the Optimizer table now colours immediately on first render (green ≥90, amber 60–89, red <60).

1.1.0

• NEW: Business-aware keywords. A new "Business" sub-tab in Settings auto-detects what your site is about (site name, top categories, product categories, recent topics) and builds a niche profile. You can also override every field manually (products / services, location, target audience). The keyword fetcher then mixes business-relevant seeds straight into the trending pool.
• NEW: 100/100 SEO Optimizer. A new top-level admin page lists posts / pages / products with their current score and one-click fix buttons. Fixes 19 weighted signals from the Rank Math / Yoast / AIOSEO content-analysis rules: focus keyword in title (and at start), meta description, slug, intro, subheadings and image alts; keyword density; URL length; word count; external DoFollow + internal links; numbers and power words in title; table of contents injection; long-paragraph splitting; image presence.
• NEW: Auto-fix on save. Optional toggle that runs the fixer whenever any supported post is saved.
• NEW: Per-post SEO meta backup + Revert button. First fix takes a one-time backup of the original title / content / slug so you can roll back from the SEO Optimizer page.
• NEW: Generator now produces 100/100 posts. Newly generated articles are automatically passed through the fixer before publish.
• Settings → 100/100 Fixer sub-tab to choose which post types are eligible, target score, batch size, and whether to allow AI for content rewrites.

1.0.0

• Initial public release.