Technical issues are the silent killers of SEO performance. Our technical SEO specialists identify and fix every barrier preventing Google from crawling, indexing and ranking your content — from Core Web Vitals to JavaScript rendering and schema markup.
Get Free Technical AuditTechnical SEO refers to the process of optimising the technical aspects of your website to help search engines crawl, render, index and rank your content effectively. No matter how excellent your content or how many backlinks you've earned, technical issues can prevent Google from understanding and ranking your website — making all your other SEO investment less effective.
Core Web Vitals — Google's user experience ranking signals measuring page speed, interactivity and visual stability — are now confirmed ranking factors. A slow, technically broken website doesn't just frustrate visitors; it actively suppresses your organic rankings.
Our technical SEO team includes in-house developers who implement fixes directly — no outsourcing, no delays, no excuses.
A complete technical SEO programme addressing every factor that influences crawlability, indexation and ranking.
Improve your LCP (Largest Contentful Paint), FID/INP and CLS scores to meet Google's page experience benchmarks and unlock associated ranking improvements.
Learn MoreDiagnose and fix crawl errors, blocked resources, noindex issues and robots.txt problems preventing Google from properly discovering and indexing your content.
Learn MoreImplement structured data for articles, products, FAQs, reviews, events and local business to trigger rich results that improve click-through rates significantly.
Learn MoreIdentify and resolve thin, duplicate and near-duplicate content issues through canonical tags, 301 redirects and content consolidation strategies.
Learn MoreEnsure your website meets Google's mobile-first indexing requirements with responsive design, mobile usability and touch-optimised interfaces.
Learn MoreOptimise your site structure and internal link architecture to distribute PageRank effectively and ensure your most important pages receive maximum authority.
Learn MoreOur technical SEO work is grounded in crawl data, page-level diagnostics and developer-friendly implementation plans.
Recommendations include severity, expected impact and QA notes.
We connect Core Web Vitals fixes to ranking stability and user experience.
We trace symptoms back to templates, scripts, crawl rules and deployment issues.
We help teams monitor regressions after releases, migrations and redesigns.
A deep technical crawl using Screaming Frog, log file analysis and Google Search Console data to surface every technical issue affecting your rankings.
We rank findings by estimated ranking impact, helping you focus developer resource on the changes that will move the needle fastest.
Our in-house developers implement fixes directly, or we work with your dev team through detailed specs, staging-environment testing and QA.
Continuous technical monitoring to catch new issues before they affect rankings, with monthly technical health reports and Search Console alerts.
Deep domain expertise across major verticals — we understand your industry's unique SEO challenges.
Solving JavaScript, crawl and Core Web Vitals problems that were holding back organic growth.
Technical SEO engagement focused on rendering parity, indexation and page speed.
Heavy JavaScript, inconsistent canonicals and slow mobile templates prevented Google from fully understanding and ranking new content.
We audited rendering, set a technical fix roadmap, improved template performance and introduced repeatable QA checks before launches.
Indexation health improved, new content was discovered faster and high-value sections gained stronger rankings.
Feedback from businesses that trust SeoLizards with growth-focused marketing execution.
“They isolated exactly why our content was not being indexed and gave our developers actionable fixes instead of vague advice.”
“The improvement in page speed and crawl health was obvious within weeks, and rankings followed shortly after.”
We diagnose crawl, rendering and Core Web Vitals issues with specialist tools built for engineering clarity.
Core Web Vitals are Google's user experience metrics: Largest Contentful Paint (LCP) measures loading speed, Interaction to Next Paint (INP) measures responsiveness, and Cumulative Layout Shift (CLS) measures visual stability. Google uses these as ranking signals — poor scores can directly suppress your organic rankings.
Crawl errors mean Google cannot access and index your pages. If a page can't be crawled, it simply won't rank — regardless of how good its content is. Crawl errors can also waste your crawl budget, causing important pages to be crawled less frequently, which delays ranking improvements.
Schema markup is structured data code added to your website that helps Google understand the type and context of your content. It enables rich results — star ratings, FAQs, breadcrumbs, price information — in search results. Rich results dramatically improve click-through rates, often by 20–30%, making schema markup a high-ROI technical SEO activity.
A thorough technical SEO audit typically takes 1–2 weeks for a standard website (under 10,000 pages). Large enterprise websites can take 3–4 weeks. We cover crawlability, indexation, page speed, Core Web Vitals, schema markup, internal linking, duplicate content and mobile usability — providing a prioritised action plan.
Yes. We have in-house developers experienced in WordPress, Shopify, Magento, custom PHP/Laravel, Next.js, React, and headless CMS platforms. We can implement fixes directly or produce detailed developer specifications for your in-house team to execute.
A technically sound website is the prerequisite for every other SEO activity. You can create the most authoritative content and earn the most powerful backlinks in your industry — but if Google can't properly crawl, render and index your pages, none of that investment will pay off. Technical SEO is the foundation on which all other SEO success is built.
SeoLizards' technical SEO team combines deep search engine knowledge with genuine development capability. Unlike most SEO agencies that produce technical audits and hand them to your developers, our in-house engineers can implement fixes directly — dramatically accelerating the time from identifying an issue to seeing its impact on your rankings.
Google's Core Web Vitals are the most significant addition to the ranking algorithm in recent years. LCP (Largest Contentful Paint) measures how quickly the main content of a page loads — Google's benchmark is under 2.5 seconds. INP (Interaction to Next Paint) measures how responsive a page is to user interactions. CLS (Cumulative Layout Shift) measures visual stability — how much the page layout shifts as it loads.
Failing Core Web Vitals benchmarks puts you at a disadvantage against competing pages that pass them. Our technical SEO team conducts field and lab data analysis to identify exactly what's causing poor CWV scores and implements targeted optimisations — image compression, lazy loading, resource prioritisation, server response time improvements and layout stability fixes.
Modern websites increasingly rely on JavaScript frameworks like React, Angular, and Next.js. While these enable rich user experiences, they can create significant SEO challenges if Google struggles to render and index JavaScript-dependent content. Our technical SEO specialists are expert at diagnosing JavaScript rendering issues — using Google Search Console URL Inspection, Screaming Frog and rendering tools to identify content that isn't being indexed — and implementing the fixes needed to ensure Google sees exactly what your users see.
How your pages are connected to each other is a major ranking factor. A well-architected internal linking structure distributes PageRank efficiently, ensures your most important pages receive maximum link equity, and helps Google understand the topical hierarchy and relevance relationships within your website. Our site architecture optimisation service maps your current link graph, identifies pages with insufficient internal links, and implements a systematic internal linking strategy that maximises the ranking potential of every page on your site.
Technical issues don't just appear at launch — they emerge continuously as websites grow, teams make changes and Google updates its algorithms. Our ongoing technical SEO monitoring service continuously crawls your website to catch new issues before they affect your rankings. Monthly technical health reports keep you informed, and our team is on hand to investigate and resolve any sudden ranking changes that may have a technical root cause.