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Pylon SEO

Free all-in-one SEO plugin for WordPress - schema markup, XML sitemaps, redirects, content analysis, image SEO, link assistant, LLMs.txt and more. No locked features.

by Bytenovo · github.com/bytenovo/pylon-seo · website

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Install

No release zip yet. The repository archive installs, but the folder name will carry the branch suffix and updates will not flow:

wp plugin install https://github.com/bytenovo/pylon-seo/archive/refs/heads/main.zip

Readme

Pylon SEO

SEO plugin for WordPress with schema markup, sitemaps, redirects, content analysis, image SEO, link assistant, and more. Built by Bytenovo — every core feature is free and fully functional. No locked features, no blurred pages, no limits.

  • Requires WordPress 6.4+ / PHP 7.4+
  • License: GPLv2 or later
  • Author: Bytenovo

Features

Content & Metadata

Feature Description
Meta Tags Edit titles, descriptions, Open Graph, Twitter Cards, canonical URLs, and robots meta per post. Full control over <head> output.
Schema Markup Injects JSON-LD for Article, Product, FAQ, LocalBusiness, BreadcrumbList, and more. Auto FAQ extraction from page headings.
Author E-E-A-T Enhanced author profiles with photo, bio, credentials, and topical expertise. Outputs structured Person schema markup.
Breadcrumbs Shortcode [pylon_breadcrumb] and Gutenberg block for Schema.org BreadcrumbList markup.
Local SEO LocalBusiness schema, location data, and an embedded map preview.
Multilingual / Hreflang Automatic hreflang for WPML, Polylang, TranslatePress, and Weglot.
Social previews Open Graph and Twitter Card tags generated from post data or manual overrides.

Technical SEO

Feature Description
XML Sitemaps Dynamic sitemaps with per-post-type pagination, priority and changefreq settings. Replaces the WordPress core sitemap. Includes news and video sitemaps.
Redirect Manager 301/302/307/308/410/451 redirects with regex support, CSV import/export, and a built-in 404 monitor that tracks hits per URL. 410/451 serve the correct HTTP status without redirecting.
Robots.txt Editor Read and edit your robots.txt with automatic fallback to WordPress defaults.
LLMs.txt Publish machine-readable /llms.txt and /llms-full.txt so AI engines (Google AI, ChatGPT, Perplexity) can understand your site.
IndexNow Protocol Auto-submit URLs to IndexNow-compatible search engines on publish or update. Serves the API key verification file from your own site.
Site Verification Verify your site with Google, Bing, Yandex, Baidu, Pinterest, Norton, and Alexa in one place.
Titles & Crawl Rules Optional Title Case conversion for generated titles and automatic noindex for password-protected pages.
RSS Optimization Add custom content before and after feed items.
HTML Sitemap Human-readable sitemap via [pylon_html_sitemap] with pages, posts, taxonomies, and custom post types.

Content Tools

Feature Description
Content Analysis On-page readability check with keyword density, heading structure, image alt attributes, and internal link analysis.
Image SEO Scan the media library for missing alt text, bad filenames, and oversized images. Edit alt text inline.
Link Assistant Smart internal link suggestions based on content similarity with one-click insertion.
Broken Link Checker Detect and fix broken internal links and outbound link issues.
Content Freshness Automatic stale content detection with a 0-100 freshness score. Daily cron identifies posts needing updates.
Keyword Research Content gaps and AEO question ideas derived from your on-site coverage.

Administration

Feature Description
Migrator One-click import from Yoast, Rank Math, AIOSEO, SEOPress, Slim SEO, and 15+ other plugins.
Conflict Detector Warns when other SEO plugins would duplicate meta, schema, or sitemaps.
SEO Pulse Dashboard At-a-glance health, usage stats, and quick actions in one place.
Onboarding Wizard Five-step wizard that guides you through initial setup.
System Status Environment and plugin diagnostics for troubleshooting.
Role Manager Control which roles can access Pylon SEO screens.

Installation

  1. Upload the pylon-seo folder to /wp-content/plugins/ or install via Plugins -> Add New.
  2. Activate the plugin through the Plugins screen.
  3. The onboarding wizard guides you through initial setup.

System Requirements

  • PHP 7.4 or higher
  • WordPress 6.4 or higher
  • MySQL 5.7+ or MariaDB 10.3+

External Services

IndexNow — notifies IndexNow-compatible search engines (Microsoft Bing, Naver, Seznam.cz, Yandex, Yep) when content is published or updated. Sends your host name, API key, and changed URLs while the feature is enabled. Terms of use

OpenStreetMap — the Local SEO settings page loads an embedded map preview using configured latitude/longitude bounds. Loaded only when you open the settings page. Terms of use / Privacy policy

No other external services are contacted. There are no telemetry, license, or upsell endpoints.

Source Code

All JavaScript and CSS shipped with this plugin is hand-written, human-readable source code. Nothing is compiled, bundled, minified, or generated by build tools — the files under assets/js/ and assets/css/ are the original, complete source and can be reviewed, studied, and modified directly. This repository contains the full, unmodified source of the plugin as distributed on WordPress.org.

pylon-seo/
├── pylon.php                  # Plugin bootstrap and constants
├── core/                      # Shared engine classes (HTTP client, JSON-LD, charts, ...)
├── modules/                   # One folder per feature module
│   ├── admin/                 # Admin shell, menus, asset loading
│   ├── meta/                  # Meta tags engine
│   ├── schema/                # JSON-LD schema generator
│   ├── redirects/             # Redirect manager and 404 monitor
│   ├── sitemap/               # XML sitemap engine (+ news, video, XSL)
│   ├── ...                    # Remaining feature modules
│   └── gutenberg/             # Gutenberg sidebar and breadcrumb block
├── assets/
│   ├── css/                   # admin.css + per-module stylesheets (hand-written)
│   └── js/                    # admin.js, gutenberg-sidebar.js, per-module scripts (hand-written)
├── languages/                 # Translations (textdomain: pylon-seo)
└── docs/

There are no third-party runtime libraries, no npm/composer dependencies, and no minified .min.* files anywhere in the plugin. No build step is required — clone or download this repository and it runs as-is.

Frequently Asked Questions

Can I import my settings from another SEO plugin? Yes — go to Pylon SEO -> Migrator and select your previous plugin. Imports from Yoast, Rank Math, AIOSEO, SEOPress, Slim SEO, and more are supported.

What happens to my data if I deactivate Pylon SEO? All SEO meta fields remain in the database. Your content keeps every title, description, and schema value. Redirects and sitemaps stop functioning until reactivation.

Will Pylon SEO slow down my site? No. Only essential modules load on the frontend; admin modules load exclusively in wp-admin. The redirect engine uses an in-memory cache and dashboard stats are cached in short-term transients.

Does Pylon SEO replace the WordPress core sitemap? Yes. It disables the core sitemap and replaces it with a customizable XML sitemap engine with per-post-type pagination and priority settings.

Changelog

1.0.2

  • Fixed Import/Export tools: file upload, export download, and Pylon-native format support.
  • Fixed real-time SEO score update in post editor.
  • Added 5-keyword focus limit for free version.
  • Fixed Windows path handling in file uploads.

1.0.1

  • Review hardening: JSON-LD output now emitted via wp_print_inline_script_tag().
  • Fixed mojibake (double-encoded UTF-8) characters in admin dashboard labels.
  • Confirmed WordPress 7.1 compatibility.

1.0.0

  • Initial release.
  • See readme.txt for the full list.

License

Pylon SEO is licensed under the GNU General Public License v2 or later.

Read the full README on GitHub →