Most WordPress sites have at least a handful of technical SEO issues. Many have dozens. The challenge isn’t identifying them. There are tools that will produce a list of hundreds of flags on any site. It’s knowing which ones matter, in what order to fix them, and which are noise.
This checklist covers the areas that consistently have the greatest impact on search visibility. It’s built for WordPress specifically, because the platform has its own common failure patterns that a generic audit checklist won’t flag directly.
What a Technical SEO Audit Covers
A technical SEO audit examines the infrastructure of your site. The elements that affect how search engines find, crawl, render, and index your pages. It’s distinct from an on-page content audit (which looks at keyword optimisation, headings, and copy) and a link audit (which looks at your backlink profile).
Technical issues can make all your other SEO work ineffective. A site with excellent content and strong backlinks can still rank poorly if Googlebot can’t crawl it efficiently, if key pages are accidentally blocked from indexation, or if page speed is severe enough to trigger Core Web Vitals penalties.
The good news for WordPress sites is that most technical SEO issues are fixable without custom development. The right plugin configuration, a few server-level settings, and consistent maintenance practices resolve the majority of what audits uncover.
The Checklist
Crawlability
robots.txt: Check that your robots.txt file isn’t accidentally blocking Googlebot from crawling important sections. A common WordPress issue: staging environments where robots.txt was set to and then migrated to production without being changed.
XML sitemap: Ensure your sitemap is generated, submitted to Google Search Console, and only includes pages you want indexed (no noindex pages, no paginated archives, no thin tag or author pages unless they have genuine content value).
Crawl errors in Google Search Console: Review the Coverage report for 404s, redirect errors, and soft 404s. Each of these wastes crawl budget and signals site health issues to Google.
Internal linking: Ensure important pages are reachable within three clicks from the homepage. Orphaned pages (those with no internal links pointing to them) are unlikely to be crawled or ranked effectively.
Redirect chains: Check for chains of three or more redirects. These slow crawling and dilute link equity. Consolidate to single-hop redirects.
Indexability
Noindex tags: Audit which pages carry noindex meta tags. Ensure they’re applied intentionally. It’s common on WordPress sites for noindex to be applied accidentally to categories, tags, or even the entire site (Settings > Reading > “Discourage search engines from indexing this site” is checked for many sites that were built in development mode and never unchecked).
Canonical tags: Every page should have a self-referencing canonical tag. Check for pages where canonical is pointing to a different URL unintentionally, or where pagination is handled without proper canonicals.
Duplicate content: WordPress generates multiple URLs for the same content by default (www vs non-www, HTTP vs HTTPS, trailing slash vs no trailing slash, and URL parameters). Ensure redirects and canonicals are configured to consolidate these.
Thin content pages: Tag archives, author pages, and paginated pages often have very little unique content. Either noindex them or improve them enough to justify indexation.
Page Speed & Core Web Vitals
Largest Contentful Paint (LCP): The time it takes for the largest visible content element to load. For most WordPress sites, this is a hero image. Optimise image file size (WebP format), add width and height attributes, and consider preloading the hero image.
Cumulative Layout Shift (CLS): Unexpected layout shifts as the page loads. Common causes: images without dimensions, web fonts loading late, and ads or embeds injecting content above the fold.
Interaction to Next Paint (INP): Measures responsiveness to user interactions. Heavy JavaScript from plugins, particularly page builders like Elementor, is a common cause of poor INP scores on WordPress.
Image optimisation: All images should be properly compressed, served in modern formats (WebP), and sized to display dimensions. The Imagify, ShortPixel, or Smush plugins handle this automatically for most WordPress sites.
Caching: A caching plugin (WP Rocket, W3 Total Cache, or LiteSpeed Cache if your host supports it) is non-negotiable for performance. Ensure browser caching headers are set correctly.
Web hosting quality: Shared hosting with overloaded servers produces poor Time to First Byte (TTFB). If your TTFB is consistently above 600ms, it’s a hosting problem, not a WordPress problem.
Schema Markup
Organisation schema: Every business website should have Organisation schema on the homepage identifying the company name, URL, logo, and contact information.
Local Business schema: For businesses with physical locations, Local Business schema (or a more specific subtype like LegalService, MedicalBusiness, etc.) should be implemented with accurate NAP data.
Article schema: Blog posts and Knowledge Hub articles should carry Article or Blog Posting schema with author, date published, and date modified.
FAQ schema: Where FAQ sections are present, add FAQ Page schema. This is one of the most practical GEO improvements available.
Breadcrumb schema: Helps Google understand site structure and can generate breadcrumbs in search results.
Security
HTTPS: The entire site should be served over HTTPS with a valid SSL certificate. Check for mixed content warnings (HTTP resources loaded on HTTPS pages), which undermine the secure connection.
WordPress core, plugin, and theme updates: Outdated plugins are the most common vector for WordPress security compromises. Run updates on a defined schedule.
Login security: The default /wp-admin login URL is targeted by brute-force bots. Rename it, add two-factor authentication, and limit login attempts.
Mobile
Mobile usability report in Google Search Console: Review for any mobile usability errors Google has flagged.
Touch targets: Buttons and links should be large enough to tap without precision. Google recommends a minimum 48x48px touch target size.
Viewport configuration: Ensure the viewport meta tag is present and correctly set.
Font sizes: Body text should be at least 16px on mobile. Smaller text requires pinching to read, which signals a poor mobile experience.
Tools to Use
Free:
Google Search Console (crawl errors, indexation coverage, Core Web Vitals, mobile usability)
Google PageSpeed Insights (page speed and Core Web Vitals by URL)
Screaming Frog (free up to 500 URLs. Crawl simulation, redirect chains, metadata review)
GTmetrix (waterfall load analysis)
Schema.org Validator and Google Rich Results Test (schema markup validation)
Paid:
Screaming Frog (full version. For sites over 500 pages)
Ahrefs or Semrush (backlink analysis, organic keyword tracking, site audit)
WP Rocket or Imagify (performance optimisation. Plugin cost, not an audit tool)
When to Hire an Agency vs DIY
A technically competent WordPress user can resolve most common technical SEO issues independently using this checklist and Google Search Console. The cases where professional input is worth it:
Sites over 1,000 pages where crawl budget management, faceted navigation, and log file analysis require advanced tooling and interpretation.
Sites with significant unexplained traffic drops where diagnosing the cause requires access to server logs, algorithmic change context, and backlink history.
Sites preparing for a redesign or platform migration where losing existing SEO value is a real risk. URL structures, redirect maps, and canonical configuration changes need to be managed carefully.
Sites where technical issues have been identified but not resolved (usually because the developer implementing fixes doesn’t have SEO context and keeps re-introducing the same problems).
For most SME WordPress sites, a professional audit followed by a prioritised remediation plan is the most efficient path: you get expert diagnosis, you understand what to fix first, and you can choose how much of the implementation to handle in-house.
→ Need a professional technical SEO audit for your WordPress site? We’ll identify and prioritise the issues that are holding back your search visibility.
