Technical SEO Foundation
Build a stronger technical SEO foundation.
A practical guide to crawlability, indexing, site structure and the signals search engines need.
Technical SEO is the groundwork that helps search engines find, crawl, understand and index your important pages. This guide focuses on the checks that matter most, without turning the process into a list of fixes with no context.
What a technical SEO foundation actually does
A technically healthy website makes it easier for search engines to reach important content and understand how pages relate to one another. It does not replace useful content, links or a strong offer. It removes avoidable barriers that can prevent those things from performing as well as they should.
The best place to start is not with a perfect score. Start with the customer journeys and pages that matter to the business: the homepage, product or service pages, important category pages and genuinely useful resources. Those URLs should be accessible, indexable, internally linked and technically consistent.
Crawling and indexing are different
Crawling is the process of discovering and requesting a URL. Indexing is the separate decision to store and potentially show that page in search results. A page can be crawlable but not indexed, or indexed with signals that point to a different canonical URL.
Make important pages easy to crawl
Clear navigation and internal links give crawlers reliable paths through a website. Every page you want people to find through search should be reachable from another useful page. Orphan pages, broken links and navigation that only works after complex interaction can make discovery harder.
Review robots.txt carefully. It is useful for managing crawler access, but it is not the right tool for removing a public page from search results. A careless disallow rule can also stop crawlers from accessing resources needed to understand or render a page.
Control indexability and duplicate URLs
Not every accessible URL needs to appear in search. Filter pages, internal search results, duplicate archives and thin utility pages can create unnecessary noise. Decide which version of a page should be indexed, then make the technical signals agree.
Use a self-referencing canonical on the preferred version of an indexable page. When two URLs contain the same or very similar content, point their canonical signals to the preferred URL and keep internal links consistent. Use noindex when a public page should remain accessible to users but should not be included in search results.
Avoid conflicting signals
A canonical pointing to one URL, an internal link pointing to another and a sitemap listing a third version creates uncertainty. HTTPS, hostname, trailing-slash and parameter conventions should be consistent across templates and navigation.
Use XML sitemaps as a clean discovery source
An XML sitemap should list canonical, indexable URLs that you genuinely want search engines to discover. It should not become a storage area for redirects, errors, duplicate pages or URLs blocked from indexing.
For a small, well-linked website, a sitemap may not be the main discovery path, but it is still useful for monitoring. Submit it in Google Search Console and review processing errors, discovered URLs and indexing patterns. Remember that sitemap submission supports discovery; it does not guarantee indexing.
Strengthen page-level technical signals
Technical SEO also lives inside each page. A descriptive title, one clear H1, a logical H2–H3 structure and useful metadata help search engines and visitors understand the topic quickly. Structured data can add machine-readable context when it accurately represents visible content.
Performance and mobile usability matter because technical problems affect real visitors. Compress heavy images, reserve space for media, reduce unnecessary scripts and test key templates on actual mobile devices. Focus on stable, usable pages rather than chasing a score without checking the experience.
Check templates, not only individual URLs
A single template issue can affect hundreds of pages. Audit product, category, article and landing-page templates separately, then verify a sample of live URLs after every major theme or plugin change.
Build a repeatable technical SEO review
Technical SEO is not a one-time setup. New content, redesigns, plugins, migrations and server changes can alter crawl paths or indexing signals. A short recurring review is more useful than waiting for traffic to fall before investigating.
Track the issues that matter to your website: index coverage, broken internal links, redirect chains, canonical conflicts, sitemap health, structured data errors and changes to important page templates. Record what changed and recheck the affected pages after fixes.
Related SEOAuditly resources
WordPress Site Health
Improve your WordPress site health.
A practical maintenance framework for keeping WordPress secure, fast and search-friendly.
A WordPress site health check should look beyond a green dashboard badge. A dependable website needs safe updates, tested backups, sensible performance, clean SEO signals and a maintenance routine that catches small problems early.
Start with WordPress Site Health, then look deeper
WordPress includes a Site Health screen under Tools → Site Health. It highlights critical configuration issues and recommended improvements, and its Info tab provides a useful snapshot of the environment. Treat it as a starting point rather than a complete maintenance report.
A site can pass the built-in checks and still have slow templates, broken forms, outdated content or search visibility problems. Review the website as both an administrator and a visitor. Open important pages, complete key actions and check the areas that support enquiries, sales or account access.
Update WordPress with a safe process
Updates protect compatibility and security, but clicking every update at once without preparation can create avoidable downtime. Keep a recent backup, understand what is changing and use a staging environment for important websites or major plugin updates.
After updating WordPress core, themes or plugins, clear relevant caches and test the website. Check navigation, forms, ecommerce functions, scheduled tasks and any custom integrations. If an issue appears, a clear change record makes troubleshooting much faster.
Remove what the site no longer needs
Inactive plugins and abandoned themes still add maintenance overhead. Remove unused software after confirming it is not required by a custom feature, template or integration.
Protect performance without relying on one score
Performance problems often build gradually. Large images, multiple font files, third-party scripts, heavy page-builder sections and database growth can make a site feel slower even when the homepage still looks acceptable.
Test representative templates rather than one URL. A product page, blog article and contact page can behave very differently. Optimise images before upload, use caching appropriate to the hosting environment and measure again after design or plugin changes.
Check security, backups and access
A healthy WordPress website needs recoverable backups and controlled access. Confirm that backups run on schedule, are stored away from the main server and can actually be restored. A backup that has never been tested is only an assumption.
Give each administrator their own account, remove access that is no longer needed and use strong authentication. Keep PHP and server software supported, protect forms from abuse and review unexpected administrator or plugin changes.
Use the least access required
Editors, shop managers and support staff rarely need full administrator access. Appropriate roles reduce the damage that can follow a compromised or mistakenly used account.
Maintain WordPress SEO health
WordPress can generate archives, attachment pages, parameters and duplicate paths depending on the theme and plugins in use. Decide which page types should be indexed, then keep titles, canonicals, sitemaps and internal links aligned with that decision.
Check that important pages have one descriptive H1, useful title tags, natural internal links and complete metadata. Review robots.txt and the XML sitemap after changing an SEO plugin. Broken internal links and redirect chains should be fixed at the source instead of being left to accumulate.
Create a maintenance routine people will follow
The best checklist is one that fits the website. A brochure site may need a short monthly review, while an active WooCommerce store needs more frequent checks around orders, payments, stock and integrations.
Use a simple record containing the date, updates completed, backup status, issues found and follow-up actions. Over time, that history reveals recurring plugin conflicts, slow templates and tasks that are repeatedly postponed.
Related SEOAuditly resources
AI Search Readiness
Prepare your website for AI-powered discovery.
Understand the technical and content signals that help AI crawlers access and interpret your website.
AI search readiness is the work of making a website accessible, understandable and useful across traditional search and newer AI-assisted discovery. It starts with strong SEO fundamentals, then adds clearer entity, content and monitoring signals.
What AI search readiness means
AI-powered search experiences may retrieve, summarise or reference information from many sources. There is no single switch that guarantees inclusion. A useful readiness process improves the signals a website controls: crawl access, page structure, factual clarity, structured data, internal links and consistent brand information.
The goal is not to rewrite every page for a machine. It is to make genuinely helpful content easier to find and interpret. Visitors should still encounter natural language, clear evidence and direct answers rather than repetitive phrases written only to match a tool.
Traditional SEO remains the foundation
If important pages are blocked, duplicated, poorly linked or technically unstable, adding newer discovery files will not solve the underlying problem. Fix crawlability, indexability and page quality first.
Make important content accessible
Review robots.txt, meta robots directives, status codes and canonical URLs on the pages that describe your organisation, products, services and expertise. Important information should be available in crawlable HTML and should not depend entirely on an interaction that a crawler may never trigger.
Use a clear site structure with descriptive navigation and internal links. Helpful About, Contact, product and guide pages provide context that isolated marketing statements cannot. Keep XML sitemaps clean and update them when important content changes.
Write content that is easy to understand and verify
A useful page usually answers a specific question for a specific audience. State what the page covers early, use descriptive H2 and H3 headings, explain unfamiliar terms and include the details a reader needs to act. Avoid broad claims that are not supported by the page.
Consistency matters. Product names, pricing, company information and feature descriptions should not conflict across the homepage, product pages, documentation and support content. Update old articles when the product changes instead of allowing multiple versions of the truth to remain online.
Show expertise through useful detail
Step-by-step instructions, limitations, examples and troubleshooting notes are stronger trust signals than repeating that a company is an expert. Human readers benefit from the same clarity.
Use structured data and entity signals carefully
Valid structured data can help machines understand what a page represents. Use types that match the visible content, such as Organization, Product, SoftwareApplication, Article or FAQPage when the page genuinely contains those elements.
Keep organisation name, logo, website URL and contact details consistent. Connect products to the organisation that publishes them, and connect articles to identifiable authors or the responsible organisation. Structured data should describe the page accurately; it should not introduce invisible claims.
Understand the role of llms.txt
llms.txt is a proposed convention for presenting a concise, machine-readable map of useful website content. It can help compatible tools locate preferred resources, but it is not a replacement for robots.txt, XML sitemaps, structured data or strong internal linking.
Treat the file as a curated guide rather than a list of every URL. Include stable, valuable public pages and keep the descriptions accurate. Because adoption varies, do not promise that publishing llms.txt will improve rankings, traffic or citations. It is one readiness signal within a wider technical and content strategy.
Keep the file maintainable
A short, current llms.txt file is more useful than a large file filled with outdated or duplicate URLs. Review it when products, documentation or key resources change.
Monitor AI crawler activity with context
Crawler analytics can show whether recognised bots requested particular paths and when those requests occurred. This is useful operational information, but a crawler visit does not prove that a page was used in an answer or that a brand gained visibility.
Look for patterns rather than isolated hits. Are important guides being reached? Are bots repeatedly receiving errors? Do requests stop after a robots.txt or server change? Combine crawler information with server logs, Search Console, referral data and manual checks of your priority topics.
Use a practical AI search readiness checklist
Start with the pages that matter most, fix clear technical barriers and improve content where readers genuinely need more detail. Then add structured discovery signals and monitoring. This order keeps the work useful even as AI search products and crawler behaviour continue to change.
Revisit the checklist after product launches, redesigns or major content updates. AI readiness is not a separate campaign that ends; it is part of maintaining a clear, accessible and trustworthy website.
Related SEOAuditly resources
AI Visibility Pro Guide
Set up and use AI Visibility Pro.
A practical WordPress guide to AI readiness checks, crawler analytics, llms.txt management and technical discovery signals.
Install and activate the WordPress plugin.
Download AI Visibility Pro, upload the ZIP file from Plugins → Add New → Upload Plugin, activate it and open AI Visibility Pro from the WordPress admin menu.
Understand the AI readiness score.
The dashboard groups passed checks and action-needed items so you can see which website signals require attention first.
Review technical discovery signals.
Use Health Check to inspect the foundations that help search engines and AI crawlers access and interpret your WordPress website.
See when recognised AI bots visit.
Crawler analytics records recognised bot requests so you can review recent activity, requested paths and discovery status.
Create and verify your llms.txt file.
Configure the content you want to expose, generate the discovery output and verify that the public llms.txt endpoint is accessible.
Turn findings into practical improvements.
Work through critical recommendations first, re-run the checks and contact support if a result needs clarification.