Technical SEO Services
Technical SEO Services: Crawlable, Indexable, Fast, and Kept That Way
We fix and maintain the technical foundations search engines depend on, including crawl efficiency, indexation control, JavaScript rendering, site architecture, structured data and performance. We work directly with your developers from specification through to release.
Illustrative example, not client data.
Where technical SEO problems come from
Crawling
Search engines allocate finite crawl resources to every site. On a small site that rarely matters. On sites with thousands of URLs, parameters and filters, it decides whether new and updated pages are discovered in days or in months.
- robots.txt rules that block resources or expose low-value paths
- Parameter, sort and filter URLs multiplying crawlable inventory
- Redirect chains and loops wasting requests
- Server errors and slow responses that throttle crawl rate
Indexing
Being crawled is not the same as being indexed. Google picks one canonical URL from every set of duplicates and declines to index pages it considers low value. Indexation needs active control.
- Conflicting canonical, noindex and sitemap signals
- Duplicate host, protocol and trailing-slash variants
- Near-duplicate templates excluded as “crawled – currently not indexed”
- Index bloat from internal search, tag and archive pages
Rendering
Content and links that only appear after JavaScript runs depend on Google’s rendering step. React, Vue or Angular sites can rank well, but only when critical content, links and metadata are reliably present in the rendered HTML.
- Client-side content missing from the rendered DOM
- Navigation built with click handlers instead of crawlable
<a href>links - Titles and canonicals rewritten by JavaScript after load
- Blocked scripts or styles and hydration errors
Performance
Core Web Vitals (Largest Contentful Paint, Interaction to Next Paint and Cumulative Layout Shift) are measured from real Chrome users. We start from field data in Search Console and CrUX, then use lab tools to find the cause.
- Unoptimised or late-discovered LCP images
- Render-blocking CSS and unused JavaScript
- Third-party scripts delaying interaction
- Layout shifts from embeds, banners and web fonts
Architecture
Architecture decides how authority flows through a site and how easily users and crawlers reach important pages. Most problems here never appear in tool reports. They only show up when the structure is mapped against commercial priorities.
- Important pages buried deep in the click path
- Orphaned pages reachable only through the sitemap
- Pagination and faceted navigation creating crawl traps
- Navigation and breadcrumbs that ignore search demand
Crawl and indexation workflow
How a URL gets from your server into Google’s index
Technical SEO work is organised around this pipeline. A problem at any stage blocks every stage after it.
- 1DiscoverLinks, XML sitemaps and redirects tell Google that a URL exists.
- 2CrawlGooglebot requests the URL. robots.txt, server speed and status codes decide what happens next.
- 3RenderJavaScript runs and the final HTML is assembled.
- 4IndexGoogle selects a canonical and decides whether the page is worth storing.
- 5ServeIndexed pages compete for queries on relevance, quality and page experience.
On established websites, most visibility problems we diagnose sit in the first four stages, before content quality is even assessed. That is why technical work is sequenced by pipeline stage: there is little point improving Core Web Vitals on templates that Google is not indexing.
Server log files
Show what Googlebot actually requests, how often and with which response. This is the ground truth for crawl analysis on large sites.
Google Search Console
Crawl stats, Page indexing and URL Inspection show how Google interprets each stage for your URLs.
Rendered crawl
A JavaScript-enabled crawl compares source and rendered HTML across every template at scale.
Technical SEO services in detail
Each service is scoped to your platform and site size. Most engagements combine several of them.
Canonicalisation and duplicate control
Canonical tags, internal links, redirects and sitemaps are aligned so they all point to the same preferred URL. Google treats canonicals as a hint, and consistent signals are what make that hint stick.
XML sitemap architecture
Sitemaps split by page type expose indexation rates per template in Search Console. They should contain only indexable, canonical URLs that return 200, with accurate lastmod values.
Structured data
Organization, Product, Article, BreadcrumbList and other relevant schema.org types implemented in JSON-LD, validated against Google’s documentation and kept consistent with visible content.
JavaScript SEO
Rendering audits, server-side or static rendering recommendations, and link and metadata checks for single-page applications and headless builds.
Core Web Vitals
Diagnosis from field data, then prioritised fixes for LCP, INP and CLS that your developers can implement without sacrificing functionality.
Pagination and faceted navigation
Clear rules for which filter combinations deserve indexable URLs, which should be crawlable but not indexed, and which should not generate URLs at all.
Site migrations
Redirect mapping, pre-launch staging audits, launch-day checks and post-migration monitoring for domain, CMS, URL-structure and protocol changes.
Internal linking
Links in navigation, breadcrumbs, listings and body content are mapped against commercial priority. We find the pages that deserve more internal links and the link patterns that waste them, then fix them at template level wherever possible.
Log-file analysis
Googlebot activity broken down by template, status code and frequency. On large sites, this is the most reliable evidence of how crawl resources are spent.
Prioritisation
The technical priority matrix
Developer time is the scarcest resource in most technical SEO projects. Every recommendation is placed on the same impact-and-effort matrix, so engineering time goes where it changes outcomes, and low-value fixes don’t crowd out important ones.
Impact is estimated from the number of affected URLs, their commercial value and the evidence in Search Console and logs. Effort is agreed with your developers, not guessed.
| Quadrant | Decision | Illustrative example |
|---|---|---|
| High impact, low effort | Do first | Canonicals pointing to redirected URLs |
| High impact, high effort | Plan and schedule | Server-side rendering for product listing pages |
| Low impact, low effort | Batch together | Updating internal links that pass through redirects |
| Low impact, high effort | Deprioritise | Rebuilding a template for a marginal lab-score gain |
Implementation support
Implementation support, not just recommendations
Most technical SEO value is lost between the recommendation and the release. We write tickets in the format your team already uses, covering the problem, the evidence, the required change and acceptance criteria. Then we validate the result on staging and again in production.
- 1SpecificationTestable requirements with affected templates and example URLs.
- 2Staging reviewCrawl and render checks before release, so regressions never reach production.
- 3Release validationLive checks, Search Console validation and a dated annotation for later measurement.
Ongoing technical monitoring
Technical SEO is not a one-off project. Releases, plugins and content changes introduce new issues all the time.
Not sure where the problems are yet? Start with a full SEO audit.
FAQ
Technical SEO FAQs
Common questions from developers and marketing teams.
1What is the difference between technical SEO and an SEO audit?
An SEO audit is a one-time diagnosis across technical, content, architecture and competitive factors. Technical SEO is the ongoing work of implementing and maintaining the technical foundations, often based on an audit’s findings.
2Do you implement the changes yourselves?
We work with your developers: writing specifications, reviewing staging builds and validating releases. Where your processes allow, CMS-level changes such as redirects, metadata or structured data can be made directly. This is agreed in the proposal.
3Which platforms do you work with?
The principles apply to any stack, including WordPress, Shopify, Adobe Commerce, headless CMS setups and custom JavaScript frameworks. The platform mainly decides which fixes are configuration changes and which need development work.
4Do Core Web Vitals affect rankings?
They are part of Google’s page experience signals, but relevance and content quality matter far more. We prioritise performance work when field data shows real users are affected, or when it holds back conversions, not to chase a perfect lab score.
5How do you measure the impact of technical SEO?
Through indexation rates per sitemap segment, crawl distribution in the logs, Core Web Vitals pass rates and the organic performance of the affected templates in Search Console and GA4. Each is compared with a baseline recorded before the change.
6Can you support a site migration?
Yes. A migration is where technical SEO matters most. Redirect mapping, staging checks and post-launch monitoring reduce the risk of the traffic losses often associated with migrations.
Technical SEO support
Give your developers clear, prioritised technical SEO requirements
Enter your URL and tell us about your platform and current issues. We will propose a scope, from a focused fix list to ongoing implementation support.