Technical SEO for WordPress: Complete Guide

Introduction

Technical SEO is the part of SEO that deals with your website’s infrastructure: speed, indexing, structure, code. In WordPress, there are several things you can configure so Google reads you better and you rank higher.

In this article you’ll see the most important technical optimizations for WordPress.

1. Permalinks (friendly URLs)

WordPress URLs should be readable and contain keywords.

• Bad: yourdomain.com/?p=123
• Good: yourdomain.com/how-to-install-wordpress/

To configure:

1. Go to Settings → Permalinks.
2. Select Post name.
3. Save.

Changing permalinks on an established website can break links. If you do it, configure 301 redirects.

2. Load speed

Speed has been an SEO factor since 2018. To improve it:

• Enable cache with LiteSpeed Cache or WP Rocket.
• Optimize images (WebP, low weight).
• Minify CSS and JS.
• Use fast hosting (with LiteSpeed and NVMe like miHosting’s).
• Enable Gzip or Brotli.

You have detailed guides on cache, images and compression in our knowledge base.

3. Core Web Vitals

The three metrics Google measures:

• LCP < 2.5s: optimize the main image and TTFB.
• INP < 200ms: reduce unnecessary JavaScript.
• CLS < 0.1: always define image size and reserve space for banners.

You have a specific Core Web Vitals guide in our knowledge base.

4. SSL (HTTPS)

WordPress must load with https://. To enable:

1. Enable Let’s Encrypt in cPanel (free at miHosting).
2. Force HTTPS with the Really Simple SSL plugin.
3. Change the site URL in Settings → General.

5. Sitemap and robots.txt

• Sitemap: enable Yoast’s or Rank Math’s at yourdomain.com/sitemap_index.xml.
• robots.txt: allow everything except /wp-admin/.
• Submit the sitemap to Google Search Console.

Complete sitemap and robots.txt guide in our knowledge base.

6. Structured data

Use Rank Math to add Schema.org (Article, FAQ, Product, LocalBusiness). Guide available in our knowledge base.

7. Indexing

For Google to index well:

• Don’t use noindex on pages you want to rank.
• Review indexing in Search Console → Coverage.
• Request indexing of new URLs with URL inspection.

8. Website structure

• Use categories and tags coherently.
• Create a clear hierarchy: home → categories → articles.
• Use breadcrumbs to facilitate navigation.
• Avoid orphan pages (without links pointing to them).

9. Images

• Use WebP instead of JPEG/PNG.
• Add descriptive alt text.
• Define width and height to avoid CLS.
• Use lazy loading (included in WordPress since 5.5).

10. SEO plugins

Install only one:

• Rank Math (free, very complete).
• Yoast SEO (free, the best known).

Don’t install several SEO plugins at once: they can conflict.

11. Remove unnecessary plugins

Each plugin consumes resources and adds code. Review:

• Do you use all installed plugins?
• Are there duplicate plugins (two cache, two SEO)?
• Are there abandoned or unupdated plugins?

12. Database

WordPress accumulates revisions, junk and transients. Clean the database with WP-Optimize every few months.

Useful tips

• Measure before and after. Use PageSpeed and GTmetrix to see your changes’ impact.
• Make changes one at a time. This way you know what worked.
• Test on mobile. Google indexes the mobile version first.
• Keep everything updated. WordPress, theme and plugins.
• Back up before technical changes. If something breaks, you restore.

Frequently asked questions

Which is the fastest SEO plugin?

Rank Math is lighter than Yoast. And if your host uses LiteSpeed, LiteSpeed Cache is the fastest of all.

How much RAM does WordPress need for SEO?

Minimum 512 MB PHP. For WooCommerce or websites with many plugins, 1 GB or more.

Does hosting affect technical SEO?

A lot. TTFB, speed and Core Web Vitals depend largely on hosting. Hosting with LiteSpeed and NVMe improves all these metrics.

Should I use a CDN?

Recommended if you have visitors from several countries. Cloudflare is free and improves global speed.

How long does it take to notice technical improvement?

In speed, immediately. In ranking, weeks or months, because Google takes time to recalculate.

Technical SEO: the foundation everything rests on

Technical SEO is the foundation. Without a fast, indexable and well-structured website, content and links don’t perform. In WordPress, most optimizations are done with a couple of well-configured plugins.

If you need hosting that doesn’t slow down your SEO, at miHosting we use LiteSpeed and NVMe SSD that offer the performance Google rewards. Open a ticket from your client panel.