Six free WordPress plugins for a fast, SEO-ready site

Executive overview

Most WordPress sites use Yoast, but a newer all-in-one plugin does more with fewer add-ons. Page speed is underestimated: even a blank WordPress install scores poorly out of the box. Three targeted plugins can push load time below one second.

The right plugin stack handles on-page SEO, image compression, caching, and UX without touching code.

All-in-one SEO: RankMath

  • Replaces Yoast and All-in-One SEO Pack for most users
  • SERP preview editor lets you customise title and meta description inline
  • Rich snippets (e.g. reviews) added without touching structured data markup
  • rel="nofollow" tag applied to links directly in the editor — no extra plugin
  • Auto-generates sitemaps, sets links to open in a new tab, monitors 404s
  • Full control over redirects, robots.txt, and site architecture

Page speed: lazy loading with A3 Lazy Load

  • Images and video only load when the user scrolls to them
  • Plug-and-play; no configuration needed unless conflicting scripts exist
  • Reduces page size, cuts load time by ~1 second, slashes request count to one-seventh

Page speed: image compression with ShortPixel

  • Compresses uploaded images to reduce file size
  • Three modes: Lossy (best compression), Lossless (best quality), Glossy (balanced)
  • Free tier: 100 compressions/month; paid credits available for larger sites
  • Bulk optimise all existing images in one click via Media > Bulk ShortPixel

Page speed: caching with W3 Total Cache

  • Handles CDN integration, CSS/HTML/JS minification, script combining, and browser caching
  • Near-perfect PageSpeed Insights scores (mobile and desktop) on a default theme
  • Sub-1-second load times achievable on fully functional sites with this stack

User experience: Easy Table of Contents

  • Inserts a table of contents into any post or page with one checkbox
  • Auto-generated from heading tags; configurable to H2-only for cleaner output
  • Reduces bounce rate and dwell time on long posts
  • Enables jump links in SERPs, which can lift CTR

What plugins won't do

  • Off-page SEO — link building — requires separate effort outside WordPress
  • Effective on-page SEO depends on keyword research done before writing

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