What is technical SEO and why does it matter?

Technical SEO covers the infrastructure of your website — how Google crawls, indexes, and renders your pages. Without solid technical foundations, even the best content and links won't rank. It's the base layer everything else depends on.

How do you identify technical SEO issues?

We use Screaming Frog for full site crawls, Google Search Console for indexation data, Lighthouse for performance metrics, and custom scripts for edge cases like JavaScript rendering issues. Every URL is analysed individually.

What are Core Web Vitals and do they affect rankings?

Core Web Vitals (LCP, INP, CLS) are Google's page experience metrics. They are a confirmed ranking factor. Sites that pass all three CWV thresholds consistently outrank sites that fail — particularly in competitive niches.

How long does technical SEO take to show results?

Technical fixes are the fastest-acting SEO changes. Crawlability fixes can restore rankings within days. Speed improvements typically show ranking impact within 2–4 weeks. Full technical overhauls show measurable results within 30–60 days.

Do you work with our development team?

Yes — we write implementation-ready specs with exact code changes, file paths, and expected outcomes. We can brief your developers directly, review their implementations, and verify fixes post-deployment.

How much does technical SEO cost?

Technical SEO audits start from £1,500. Ongoing technical SEO retainers from £800/month. Enterprise sites with complex architectures are scoped individually. We always provide a fixed quote after initial assessment.

What is crawl budget and why does it matter?

Crawl budget is the number of URLs Googlebot will crawl on your site in a given period. Sites waste crawl budget on low-value URLs — filter pages, session parameters, infinite scroll, duplicate content — meaning important pages get crawled less frequently. For sites with 10,000+ pages, crawl budget management directly affects how quickly new and updated pages rank. We identify and block crawl waste so Googlebot prioritises your revenue-generating pages.

What is a Google penalty and how do you recover from one?

Google issues two types of penalties: manual actions (visible in Search Console, issued by human reviewers) and algorithmic devaluations (invisible, triggered by Core or Helpful Content updates). Manual actions require submitting a reconsideration request after fixing the identified issue — typically low-quality content, unnatural links, or cloaking. Algorithmic devaluations require a content and E-E-A-T audit to identify and fix the quality signals causing the drop. Recovery timelines range from days (manual actions) to months (core updates).

How do I know if my website has a technical SEO problem?

The clearest signal is a ranking drop that aligns with a Google update, or low organic traffic despite strong content and backlinks. Specific symptoms include: pages not appearing in Google Search Console, indexation count lower than your page count, Core Web Vitals failing, 404 errors on linked pages, or a sudden drop in crawl rate visible in Search Console's crawl stats. Our free technical audit scans 200+ signals and produces a prioritised report within 48 hours.

★★★★★5.0 Google · 52 reviews ★★★★★Trustpilot 4.9 · Excellent

Technical SEO Agency UK · Free Crawl Audit

Our technical SEO agency fixes the invisible infrastructure killing your rankings

Your content might be excellent. Your links might be strong. But if Google can't crawl, index, or render your pages, none of it matters. Pair technical SEO with on-page SEO and every fix multiplies in value.

Reviewed by Simran Rana LinkedIn ↗

Digital Operations Manager · Google Premier Partner · Meta Blueprint Certified · 200+ technical checks · Last updated 21 May 2026

↓ This is what your crawl audit reveals

Free Technical SEO Audit

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Our crawler checks 200+ technical SEO signals — title tags, Core Web Vitals, crawlability, schema, redirects, and more. You get a full prioritised report with specific fixes.

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↓ How Google finds & ranks your pages

You publish content on your site

Google bots or "spiders" crawl & review pages

Google indexes your page

Google

SERP

(search engine
results pages)

If your page meets the criteria, Google shows it in results

You publish content on your site

Google bots or "spiders" crawl & review pages

Google indexes your page

Google

SERP

(search engine
results pages)

If your page meets the criteria, Google shows it in results

See Results →

Dev-team-ready specs

Screaming Frog + custom tools

CWV specialists

Post-deploy verification

Dev-team-ready specsCWV specialistsPost-deploy verification

Certified

Meta Business Partner

MicrosoftPartner

Why Technical SEO

Why a technical SEO agency is essential before investing in content or links

43%

Content can't rank if Google can't find it

Crawl budget waste, blocked resources, orphan pages, and redirect chains prevent Google from discovering your best content. A technical SEO agency ensures every valuable page is crawlable, indexable, and renderable.

43% of sites have major crawl issues

<1s

Speed is a confirmed ranking factor

Core Web Vitals directly influence rankings. Pages that load in under 2.5 seconds consistently outrank slower competitors. Our technical SEO agency optimises every performance metric Google measures.

Sub-1s LCP on managed sites

+67%

Technical debt compounds over time

Every site redesign, CMS update, and plugin install introduces technical debt. Without ongoing technical SEO, your site's health degrades month by month — silently undermining your content and link building investment.

+67% avg traffic post-fix

Services

Every technical SEO service our agency delivers — from crawl to Core Web Vitals

Each service addresses a specific layer of your site's technical health.

Site Speed Optimisation

<1s LCP avg

Image compression, lazy loading, code splitting, server response time, caching, and CDN configuration. We get your LCP under 2.5s and often under 1s.

Best for: Performance

Crawlability & Indexation

99%+ index rate

Robots.txt, XML sitemaps, internal linking, redirect chain cleanup, orphan page identification, and crawl budget optimisation for large sites.

Best for: Discoverability

Core Web Vitals

97% pass rate

LCP, INP, and CLS diagnosed and fixed page by page. Not just site-wide averages — every failing URL addressed with specific code changes.

Best for: Page experience

Structured Data

100% coverage

Schema markup for products, FAQs, reviews, articles, local business, and breadcrumbs. Rich snippet eligibility on every qualifying page.

Best for: Rich results

Site Architecture

≤3 click depth

URL structure, internal linking hierarchy, faceted navigation, pagination, and information architecture. Ensuring crawl depth is optimised for your most important pages.

Best for: Large sites

JavaScript SEO

Full render audit

Server-side rendering, dynamic rendering, hydration issues, and JS-dependent content auditing. Ensuring Google sees the same content as your users.

Best for: SPAs & frameworks

Case Study — E-Commerce (2,000+ SKUs)

E-commerce site with 2,400 products. Only 800 indexed. Our ecommerce SEO agency recovered full indexation in 6 weeks — organic revenue up 156%.

Site had migrated to a new platform 4 months prior. The migration introduced 1,600 orphan pages, broken canonical chains, and faceted navigation generating 40,000 duplicate URLs.

Week 1–2:Full crawl audit revealed: 1,600 product pages orphaned (no internal links), canonical tags pointing to non-existent URLs, and faceted navigation creating 40,000 crawlable duplicate parameters. Crawl budget was 92% wasted.

Week 3–4:Internal linking architecture rebuilt. Canonical chains fixed. Faceted navigation parameters blocked via robots.txt and noindex. XML sitemap regenerated with only canonical URLs. Google began re-crawling within 48 hours.

Week 5–6:Index coverage recovered from 800 to 2,350 pages. Core Web Vitals optimised — LCP from 4.2s to 1.1s. Organic revenue up 156% within 60 days of implementation.

2,350

Pages indexed

+156%

Organic revenue

1.1s

LCP achieved

6 weeks

To full recovery

Site Architecture

SEO-friendly site architecture — why it determines what Google can rank

A flat, logical site hierarchy is one of the highest-leverage technical SEO fixes we deliver. When Google's crawl budget is wasted on duplicate parameters, orphaned ecommerce product pages, and infinite pagination, your best content never gets indexed — let alone ranked. Our technical SEO agency rebuilds architecture so every page earns its place in the index.

Flat hierarchy — 3 clicks from homepage — Every important page reachable within 3 clicks. Deep URLs dilute PageRank and reduce crawl frequency for the pages that matter most.

Canonical URL structure — One URL per page, enforced site-wide. We eliminate duplicate content before it splits ranking signals and cannibalises your own positions.

Internal link equity distribution — Strategic internal linking funnels authority from high-PageRank pages to conversion targets — without needing a single new backlink.

XML sitemap precision — Only indexable, canonical URLs submitted. Sitemap health verified post-deploy to ensure Google's index reflects your actual content.

Get a Free Architecture Audit

Home

Category pages

Individual pages

Googlebot crawling

JavaScript & Crawlability

JavaScript rendering and crawlability — why your React or Angular site may be invisible to Google

If your site runs on React, Angular, Vue, or any JavaScript-heavy framework, Google processes it in three distinct phases: crawling, rendering, and indexing. The crawl happens immediately — but rendering is queued and can take days or weeks. Content that only exists after JavaScript executes may never be indexed at all.

AI crawlers compound the problem further. GPTBot, ClaudeBot, OAI-SearchBot, and most other AI crawlers do not execute JavaScript — they only read the initial HTML response. Any content that requires rendering is invisible to these systems, cutting you out of AI-cited sources entirely.

Server-side rendering (SSR) — We work with your dev team to implement SSR or static generation so Googlebot receives fully-rendered HTML on every request — no render queue, no delay.

Dynamic rendering — Serve pre-rendered HTML to bots while users get the full JS experience. A surgical fix that requires no framework changes.

Rendering audit — We compare what your server returns vs. what Googlebot actually sees. Differences reveal hidden indexation failures most agencies never diagnose.

AI crawler accessibility — Configure llms.txt and ensure critical content is available in the initial HTML response — so your site appears in AI-cited results, not just traditional search.

Google processing stage

Data transfer (dashed)

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

LCP — Largest Contentful Paint3.8s

INP — Interaction to Next Paint280ms

CLS — Cumulative Layout Shift0.05

0–49

50–89

90–100

Auto-switching Mobile ↔ Desktop — showing before/after impact

Core Web Vitals

Page speed — the ranking factor Google scores on every single crawl

Google's Core Web Vitals (LCP, INP, CLS) are direct ranking signals. A poor Performance score on mobile doesn't just frustrate users — it suppresses rankings across your entire domain. The average site we audit has an LCP of 3.8s on mobile. Google's threshold for "Good" is 2.5s. That gap is costing you positions every day.

Page speed is also a conversion rate lever. A 1-second improvement in LCP increases conversions by an average of 7%. Our technical SEO agency delivers speed fixes with your dev team — or directly if you're on a platform we support.

LCP (Largest Contentful Paint) — Compress and convert hero images to WebP/AVIF, defer render-blocking scripts, add a CDN with edge caching. Target: LCP under 1.2s.

INP (Interaction to Next Paint) — Reduce long tasks, break up heavy JavaScript, optimise event listeners. Critical for React and Vue SPAs where interaction delays are common.

CLS (Cumulative Layout Shift) — Reserve space for images, ads, and embeds. Eliminate late-loading fonts and injected banners that push content down mid-read.

Server response time (TTFB) — Optimise hosting, implement edge caching, and reduce database query load. TTFB is the starting gun — every other metric follows it.

Get My Core Web Vitals Fixed

Avg 45% speed improvement

Search Console

Google Search Console Core Web Vitals — what the data actually tells you

Google Search Console's Core Web Vitals report shows your real-world CWV status based on Chrome UX data — not a lab simulation. The chart shows how many of your URLs Google classifies as Good, Needs Improvement, or Poor on mobile and desktop. Every URL stuck in orange or red is a ranking suppression you can see and fix.

Our technical SEO agency reads GSC data as part of every audit. We cross-reference CWV field data with PageSpeed Insights lab scores, CrUX API origin data, and real-user monitoring — so fixes are prioritised by actual ranking impact, not vanity metrics.

GSC CWV audit — We pull your full Core Web Vitals field data, identify which URL groups are failing, and map each failure to a root cause — not just a symptom.

Fix verification in GSC — Every CWV fix we implement is verified via GSC re-validation. You see URLs move from red to green in the report — concrete, measurable proof.

Cross-device reporting — Mobile and desktop are scored separately. Mobile failures are weighted more heavily in Google's ranking — we fix mobile first.

Monthly CWV tracking — We include CWV field data in your monthly report so you can see trend lines improving over time as fixes are deployed and cached.

▾Indexing

□Pages

▣Videos

⊞Sitemaps

⊗Removals

▾Experience

●Core web vitals

🔒HTTPS

▸Security & Manual Actions

🔗Links

Core web vitals

Source: Chrome UX report · Last updated: 20/04/2026

MobileOPEN REPORT ›

0 poor URLs

0 need improvement

148 good URLs

Crawlability & Indexation

robots.txt and XML sitemaps — the two files that control what Google indexes

A misconfigured robots.txt can silently block Google from your most valuable pages. A missing or malformed sitemap means Google discovers your content late — or not at all. Our technical SEO agency audits both on every engagement, including AI crawler access rules that most agencies have never heard of.

robots.txt — allow the right bots, block the right paths

Your robots.txt must be precise. Over-blocking wastes crawl budget on low-value pages. Under-blocking allows crawlers into faceted navigation, session parameters, and duplicate content. We also configure AI bot access — so GPTBot, ClaudeBot, OAI-SearchBot, and Perplexity can cite your content in AI-generated results.

Crawl budget optimisation

AI bot access rules

Faceted nav blocking

Duplicate URL prevention

XML sitemap — tell Google exactly what to index

A precise XML sitemap submitted to Google Search Console is one of the fastest ways to accelerate indexation. We build and submit sitemaps that contain only canonical, indexable URLs — no redirects, no noindex pages, no duplicate parameters. Then we verify the submission in GSC and monitor for errors weekly.

GSC sitemap submission

Canonical URLs only

Image & video sitemaps

Weekly error monitoring

○Overview

○Insights

○Performance

○URL inspection

▾ Indexing

□Pages

□Videos

□Sitemaps

□Removals

Sitemaps

Add a new sitemap

https://get-found.co.uk/

✓

Sitemap submitted successfully

Google will periodically process it and look for changes. You will be notified if anything goes wrong.

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Our Process

How our technical SEO agency diagnoses and fixes your site's infrastructure

Technical Crawl

Full site crawl analysing every URL for status codes, redirects, canonicals, hreflang, structured data, and JavaScript rendering issues.

Week 1

Performance Audit

Core Web Vitals measured per page. Server response times, image optimisation, code efficiency, and third-party script impact assessed.

Week 1

Priority Matrix

Every finding scored by effort and ranking impact. Implementation specs written with exact code changes for your development team.

Week 2

Implementation

Fixes deployed in priority order. We work directly with your dev team or implement through CMS access. Each fix verified post-deployment.

Weeks 2–4

Monitor & Iterate

Ongoing crawl monitoring, CWV tracking, and index coverage reporting. New issues caught and addressed before they impact rankings.

Ongoing

Complementary Services

Pair technical SEO with these services for maximum impact

Technical foundations work hardest when combined with content marketing and link strategies.

Full organic growth strategy

SEO

Pair technical foundations with content strategy and link building for compound organic growth.

Learn more

Complete diagnostic first

SEO Audit

Start with a comprehensive audit to identify all technical, content, and link issues.

Learn more

Build it right from the start

Website Development

Conversion-optimised websites built with technical SEO best practices from day one.

Learn more

Dominate local results

Local SEO

Combine technical excellence with local optimisation for maximum visibility in your area.

Learn more

Free Technical SEO Audit

Find every issue hiding in your site

Our crawler checks 200+ technical signals and delivers a prioritised report with specific fixes — free, no spam, instantly.

You publish content on your site

Google bots or "spiders" crawl & review pages

Google indexes your page

Google

SERP

(search engine
results pages)

If your page meets the criteria, Google shows it in results

You publish content on your site

Google bots or "spiders" crawl & review pages

Google indexes your page

Google

SERP

(search engine
results pages)

If your page meets the criteria, Google shows it in results

Dev-team-ready specs

Screaming Frog + custom tools

CWV specialists

Post-deploy verification

Free Technical SEO Audit

Find every issue hiding in your site

Our crawler checks 200+ technical SEO signals — title tags, Core Web Vitals, crawlability, schema, redirects, and more. You get a full prioritised report with specific fixes.

Full Name

Phone

Website URL

Monthly Budget

Free · No spam · Full report delivered instantly

FAQ

Technical SEO questions — direct answers

What you need to know before hiring a technical SEO agency.

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Nationwide coverage

Technical SEO across the UK

We deliver technical seo services for businesses in every major UK city.

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