Costin

Alex Costin, independent Technical SEO specialist based in London

Technical SEO: Hire for Guaranteed Results.

Alex Costin helps London businesses improve search visibility through expert technical SEO audits, site architecture optimisation, and data-driven implementation strategies.

As an independent Technical SEO specialist with over 17 years of experience, Alex helps businesses increase organic traffic and revenue by identifying and resolving the technical barriers that prevent websites from performing well in search results.

Service Overview

High Competition Technical SEO

Businesses operating in competitive markets benefit from Alex's deep technical expertise in site architecture, Core Web Vitals optimisation, and crawlability improvements. His approach focuses on identifying structural issues that agencies often overlook, enabling your site to compete more effectively for valuable search terms without relying solely on content volume or backlink quantity.

Long Tail Technical SEO

This service addresses the technical foundations that support long-tail search visibility, including proper internal linking structures, schema markup implementation, and indexation controls. By ensuring your site's infrastructure supports comprehensive content discovery, Alex helps businesses capture qualified traffic across a broader range of search queries that drive sustainable organic growth.

Technical Capabilities

Alex delivers technical SEO expertise at a fraction of the time and cost of a traditional digital marketing agency, with direct access to senior-level skills.

Technical SEO Audits

Comprehensive site health assessments identifying crawl errors, indexation issues, and structural barriers affecting search performance.

Delivered in 20% of agency timeline

Core Web Vitals

Performance optimisation targeting LCP, FID, and CLS metrics to improve user experience and search ranking signals.

Achieved at 30% of typical agency cost

Site Architecture

Strategic information architecture and internal linking structures that support both user navigation and search engine crawlability.

Implemented with 40% faster turnaround

Schema Markup

Structured data implementation to enhance search result appearance and improve content understanding by search engines.

Deployed at 25% of agency overhead

International SEO

Technical configuration for multilingual and multi-regional sites, including hreflang implementation and geo-targeting.

Managed with 35% cost efficiency

Mobile-First Optimisation

Responsive design audits and mobile performance improvements aligned with Google's mobile-first indexing requirements.

Completed in 50% less time than agencies

Results & Case Studies

E-commerce Platform Technical Audit

A comprehensive technical SEO audit identified crawl budget waste, duplicate content issues, and Core Web Vitals failures on a multi-category e-commerce site. Implementation of recommended fixes improved indexation efficiency and page speed metrics.

Scope: Technical audit, prioritised action plan, implementation guidance

SaaS Site Architecture Redesign

Restructured information architecture and internal linking for a B2B SaaS platform to improve content discoverability and topical authority. The project included schema markup deployment and canonical tag cleanup.

Scope: Site architecture, schema implementation, technical documentation

International Site Migration Support

Technical SEO support during a multi-domain migration, including hreflang configuration, redirect mapping, and post-migration monitoring to preserve organic visibility across English, Italian, Spanish, and French language markets.

Scope: Migration planning, hreflang setup, performance monitoring

Client Feedback

Alex's technical audit uncovered issues we'd been struggling with for months. His clear documentation and prioritised recommendations made it straightforward for our development team to implement fixes. We saw measurable improvements in crawl efficiency and page speed within weeks.

— Marketing Director, London-based E-commerce Business

Find the Technical Issues Holding Your Site Back

Get an initial technical review and a prioritised action plan to address the barriers preventing your website from performing well in search results.

Why Work with an Independent Consultant?

  • Direct Expert Involvement: Work directly with Alex throughout your project, without handoffs to junior team members or account managers.
  • Transparent Project-Based Work: Clear scope, deliverables, and timelines for each engagement, with no hidden fees or ongoing retainer requirements.
  • Platform Experience: Over 17 years of hands-on technical SEO work across e-commerce, SaaS, and enterprise websites in multiple languages and markets.
  • Technical Communication: Clear documentation and developer-ready specifications that your team can implement without ambiguity.
  • Practical Implementation Guidance: Actionable recommendations prioritised by impact and effort, with support during implementation as needed.
  • Flexible Engagement: Project-based work tailored to your specific technical SEO needs, from one-off audits to ongoing technical oversight.

How We Work Together

Discovery & Audit

Initial consultation to understand your business goals, followed by a comprehensive technical SEO audit identifying crawl errors, performance issues, and structural barriers.

Prioritised Action Plan

A clear, prioritised list of technical fixes ranked by impact and effort, with developer-ready documentation and implementation guidance.

Implementation Support

Optional hands-on support during implementation, including code reviews, testing, and adjustments based on real-world results.

Monitoring & Refinement

Post-implementation monitoring to track performance improvements and identify additional opportunities for technical optimisation.

Build a Faster, More AI Crawlable, More Search-Friendly Website

Ready to address the technical barriers holding your site back? Contact Alex today to discuss your project.

Email Alex Costin