TECHNICAL SEO AUDIT SERVICES
Fix What Is Silently Killing Your Rankings
Technical SEO for regulated industries requires more than a standard checklist. We deliver technical SEO audits built for fintech, iGaming, CFD, crypto, and SaaS businesses - sectors where YMYL signals, compliance boundaries, and cross-market indexation all affect how Google ranks your site. Our audit is designed for that complexity, not around it.
200+
Audits Delivered
4.9
Average Rating
94%
Clients See Page 1 Gains
★★★★★
"Vicious Marketing found 47 critical issues our previous agency missed entirely. We went from position 18 to position 4 in 6 weeks."
- Head of Growth, UK SaaS Company
THE AUDIT CHECKLIST
Our Comprehensive Technical SEO Audit Checklist
Our audit process covers every ranking factor Google uses to evaluate site health, structured as an actionable checklist with real tools, specific metrics, and measurable benchmarks your team can act on.
Exact Metric / Benchmark
Tool We Use
Site Architecture & Crawlability Analysis
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Crawl Accessibility Assessment
We perform a systematic crawl of your entire site to map how search engines discover and access your pages. Our experts audit your robots.txt directives and XML sitemap structure to ensure Googlebot is crawling your most valuable content and not wasting crawl budget on thin or duplicate pages. We check crawl depth, since pages buried beyond 3 clicks from the homepage lose significant ranking power. We also map internal link equity flow and surface orphan pages that Google can never organically reach.
EXACT METRICS
Crawl depth max 3 clicks
Sitemap coverage min 95%
0 blocked indexable URLs
TOOLS WE USE
Screaming Frog
Sitebulb
Google Search Console
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URL Structure & Site Organisation
A flat, logical URL hierarchy is one of the most overlooked ranking factors. We audit your URL structure for SEO friendliness, identifying parameter-heavy URLs, dynamic query strings, and inconsistent slug formatting that confuse search engines. We review canonical tag implementation to eliminate duplicate content penalties and check for redirect chains longer than 2 hops, since each extra hop dilutes link equity by roughly 15%.
EXACT METRICS
Redirect chains max 2 hops
Link equity loss per extra hop: ~15%
TOOLS WE USE
Sitebulb
Ahrefs
Semrush
Technical Performance & Page Speed
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Core Web Vitals Assessment
Since Google's Page Experience update, Core Web Vitals are direct ranking signals. We measure all three metrics across your most important page templates, not just the homepage. LCP (Largest Contentful Paint) must be under 2.5 seconds. INP (Interaction to Next Paint, which replaced FID) must stay below 200ms. CLS (Cumulative Layout Shift) must remain below 0.1. We test both mobile and desktop using lab data from Lighthouse and real-user field data from CrUX to surface what is actually hurting your rankings in live conditions.
EXACT METRICS
LCP below 2.5s
INP below 200ms
CLS below 0.1
TOOLS WE USE
Lighthouse
PageSpeed Insights
CrUX Dashboard
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Page Speed Optimisation Audit
Slow pages bleed rankings and revenue. We identify the exact bottlenecks throttling your site: uncompressed images, render-blocking JavaScript, missing lazy loading, oversized third-party scripts, and poor server response times. We check image formats since WebP and AVIF deliver 25 to 35 percent smaller file sizes than JPEG. Every recommendation maps directly to a measurable Core Web Vitals improvement.
EXACT METRICS
TTFB below 600ms
Images in WebP or AVIF
JS bundle below 150kb
TOOLS WE USE
GTmetrix
WebPageTest
Chrome DevTools
Mobile Optimisation & Responsive Design
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Mobile-First Index Compliance
Google indexes the mobile version of your site first, meaning your desktop rankings are determined entirely by your mobile experience. We run a full mobile-first compliance audit across every breakpoint and device category. This includes checking viewport configuration, ensuring tap targets meet Google's minimum size standard, validating that all text is readable without zooming, and confirming your mobile experience serves the same content and structured data as desktop. A mismatch between mobile and desktop content silently tanks rankings.
EXACT METRICS
Tap target min 48x48px
Base font min 16px
Mobile and desktop content parity
TOOLS WE USE
Google Mobile-Friendly Test
Screaming Frog
BrowserStack
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Mobile SEO Technical Elements
Beyond responsiveness, mobile SEO has specific technical requirements that most agencies miss. We audit intrusive interstitial pop-ups that Google explicitly penalises on mobile. We check font rendering, spacing of interactive elements, and mobile page speed independently from desktop. Mobile pages are typically 2 to 3 times slower than desktop and need separate optimisation strategies. We also verify structured data parity and AMP implementation where it applies.
EXACT METRICS
0 intrusive interstitials
Mobile speed scored independently
TOOLS WE USE
Lighthouse Mobile Mode
Search Console Mobile Report
Indexation & Search Console Analysis
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Index Coverage Assessment
If Google has not indexed your pages, they cannot rank. We perform an in-depth indexation audit by cross-referencing your sitemap against Google Search Console's Index Coverage report to identify every page stuck in "Discovered but not indexed," "Crawled but not indexed," or "Excluded" status. We diagnose root causes: noindex tags applied by mistake, crawl budget exhaustion, soft 404 errors, or duplicate content signals. Your index coverage ratio should stay above 90% for a healthy site.
EXACT METRICS
Index ratio min 90%
0 unintentional noindex tags
0 soft 404 errors
TOOLS WE USE
Google Search Console
Sitebulb
Screaming Frog
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Search Console Diagnostic Review
Google Search Console contains the most accurate data about how Google sees your site, yet most businesses barely scratch the surface. We perform a full diagnostic review: analysing Manual Action reports for active penalties, reviewing security notifications for malware warnings, inspecting Core Web Vitals reports by page type, auditing Schema markup errors, and extracting high-impression zero-click opportunities. Pages ranking between positions 11 and 20 with strong impressions are your fastest wins for page 1.
EXACT METRICS
0 manual actions
0 security issues
Schema errors resolved to 0
TOOLS WE USE
Google Search Console
Ahrefs
Semrush
ENTERPRISE TECHNICAL SEO AUDIT SERVICES
Built for Large, Complex Sites
Standard audit tools break on enterprise sites. Crawl budgets collapse. JavaScript goes unrendered. Hreflang conflicts compound across domains. Our enterprise technical SEO audit is designed for sites where scale creates its own category of problems.
Crawl Budget Analysis & Log File Processing
For sites with 50,000+ pages, crawl budget is a critical ranking factor. We process your server log files to show exactly which pages Googlebot is crawling, how often, and which are being ignored. We identify crawl traps, paginated content issues, and faceted navigation patterns wasting your budget.
50k+
Pages audited on a single enterprise engagement
12
Languages and markets handled in one hreflang audit
JavaScript Rendering Audit
Google renders JavaScript differently from a browser. We test your JS-heavy pages using Google's actual rendering pipeline to identify content, links, and structured data that Google cannot see. We check for render-blocking scripts, deferred content, and dynamic URL generation that prevents proper indexation.
Multi-Domain, Hreflang & International SEO
Hreflang errors are among the most complex and damaging technical issues for international sites. We audit every hreflang implementation across your domains, checking for missing return tags, incorrect locale codes, and canonical conflicts that cause Google to index the wrong language version for each market.
6 weeks
Average time to measurable ranking improvement post-fix
340%
Average organic traffic increase for enterprise clients
"The enterprise audit paid for itself within 3 weeks."
Director of SEO, UK e-commerce retailer with 200,000+ product pages
CDN & Infrastructure Audit
Enterprise sites rely on CDN layers, edge caching, and load balancers that can introduce SEO problems invisible to standard crawlers. We test CDN cache behaviour, check for inconsistent responses across edge nodes, verify that canonical headers are set correctly at the server level, and audit your HTTPS configuration for mixed content errors.
WHY CHOOSE VICIOUS MARKETING
Specific Expertise. Verified Results.
Not generic claims. Real numbers from real audits.
200+
Technical Audits Delivered
Since 2018, we have completed over 200 technical SEO audits across SaaS, e-commerce, fintech, and professional services. Our methodology has been refined across every major Google algorithm update including Core Web Vitals, Helpful Content, and the March 2024 Core Update.
11
Tools in Our Audit Stack
We use Screaming Frog, Sitebulb, Google Search Console, Lighthouse, PageSpeed Insights, GTmetrix, WebPageTest, Ahrefs, Semrush, Chrome DevTools, and server log analysis tools. Every issue we surface is cross-validated across multiple data sources before it enters your report.
4.9
Average Client Rating
Across 80+ verified client reviews. Our most recent case study: a fintech client moved from position 22 to position 3 for their primary keyword within 8 weeks of implementing our audit recommendations, adding 4,200 monthly organic sessions with zero additional content spend.
TECHNICAL SEO AUDIT PRICING
Transparent Pricing. No Hidden Fees.
Every tier includes a full report, prioritised fix list, and a 30-minute debrief call. Use our Audit Cost Calculator for a custom estimate in under 60 seconds.
STARTUP
$575
one-time
For sites under 500 pages. Delivered within 5 business days.
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Full site crawl up to 500 pages
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Robots.txt and sitemap audit
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Core Web Vitals report (mobile and desktop)
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Index coverage analysis
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URL structure and redirect audit
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Prioritised fix list with severity ratings
-
30-minute debrief call
GROWTH
$1150
one-time
For sites up to 5,000 pages. Delivered within 7 business days.
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Everything in Startup, plus
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Full site crawl up to 5,000 pages
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JavaScript rendering check
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Hreflang and international audit
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Schema markup and rich result audit
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Search Console diagnostic review
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Before/after screenshot documentation
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Competitor technical benchmarking
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60-minute debrief call
MOST POPULAR
ENTERPRISE
Custom
For sites with 5,000+ pages, multi-domain, or complex JS frameworks.
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Everything in Growth, plus
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Unlimited page crawl with log file analysis
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CDN and infrastructure audit
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Multi-domain and hreflang matrix
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JS rendering pipeline analysis
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Crawl budget optimisation report
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Dedicated Slack channel during audit
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Executive summary for stakeholders
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Optional implementation support
Not sure which tier fits? Use our cost calculator or get in touch and we will advise within 24 hours.
What You Receive
What Is Inside Your Technical SEO Audit Report
Every audit delivers a comprehensive, structured report your team can act on immediately, written for both technical developers and non-technical stakeholders.
01
Executive Summary
A plain-English overview of your site's technical health score, the top 5 critical issues, and the estimated ranking impact of fixing each one. Written for CEOs and marketing directors.
02
Issue Severity Matrix
Every issue categorised as Critical, Warning, or Advisory with an estimated traffic impact score. Helps your team prioritise what to fix first for maximum ranking gain.
03
Fix-by-Fix Instructions
Step-by-step remediation guides for every issue found, written for developers. Includes code examples, CMS-specific instructions, and the exact Screaming Frog or GSC filter to verify each fix.
04
Before and After Screenshots
Visual documentation of every issue found, including Search Console error screenshots, Lighthouse score breakdowns, and crawl map comparisons showing problem areas.
05
Core Web Vitals Report
LCP, INP, and CLS scores for your key page templates on both mobile and desktop, with specific element-level causes identified and prioritised fix recommendations.
06
Prioritised 90-Day Roadmap
A sequenced action plan showing which fixes to implement in weeks 1 to 4, weeks 5 to 8, and weeks 9 to 12, based on impact and implementation effort.
Common Questions
Technical SEO Audit FAQs
How long does a technical SEO audit take?
A comprehensive technical SEO audit typically takes 5 to 10 business days depending on site size. For sites under 500 pages, we deliver within 5 days. For enterprise sites with 10,000+ pages, crawl analysis, log file processing, and JavaScript rendering checks require 8 to 10 days. You receive a full prioritised report with fix-by-fix instructions, severity ratings, and a 90-day roadmap on completion. We also schedule a debrief call to walk through the findings and answer your team's questions.
How soon will I see results after fixing technical SEO issues?
Most clients see measurable improvements within 4 to 8 weeks of implementing our recommendations. Technical fixes like resolving crawl errors and correcting noindex tags are picked up by Googlebot within days of being deployed. Core Web Vitals improvements appear in Search Console field data within 28 days. Ranking improvements for competitive keywords typically follow 4 to 6 weeks after Google reindexes the updated pages. We advise submitting the updated URLs for recrawling in Google Search Console immediately after each fix batch goes live.
What tools do you use during a technical SEO audit?
We use a professional stack of 11 industry-standard tools: Screaming Frog and Sitebulb for full site crawls, Google Search Console for index coverage and manual action data, Lighthouse and PageSpeed Insights for Core Web Vitals measurement, GTmetrix and WebPageTest for performance bottleneck analysis, Ahrefs for backlink and redirect auditing, Chrome DevTools for rendering inspection, and server log analysis tools for enterprise clients. Every tool we use is referenced in your final report alongside the specific data it surfaced, so your developer knows exactly where each finding came from.
What is the difference between a technical SEO audit and a general SEO audit?
A general SEO audit covers content quality, keyword targeting, and backlink profiles alongside technical factors. A technical SEO audit focuses specifically on the infrastructure of your site: how search engines crawl and index your pages, your Core Web Vitals scores, mobile-first compliance, URL structure, JavaScript rendering, structured data, and server-level performance. Technical SEO is the foundation that everything else depends on. Poor technical health limits how far even excellent content and strong backlinks can rank. We recommend starting with a technical audit before investing in content or link building.
How much does a technical SEO audit cost?
Our technical SEO audit pricing starts at $575 for startup sites under 500 pages, $1150 for growth-stage businesses with up to 5,000 pages, and custom pricing for enterprise sites with complex multi-domain or JavaScript rendering requirements. Each tier includes a full crawl report, Core Web Vitals analysis, prioritised fix list, and a debrief call. All pricing is fixed and agreed before work begins with no hidden fees. Use our audit cost calculator to get a transparent estimate for your specific site in under 60 seconds, or get in touch and we will advise within 24 hours.
Do you fix the issues found or just report them?
Our standard audit delivers a detailed report with prioritised, fix-by-fix instructions written for both technical developers and non-technical stakeholders. We include severity ratings (critical, warning, advisory), estimated impact scores, and step-by-step remediation guides for every issue found. For clients who want us to implement the fixes directly, we offer a technical SEO implementation service as an add-on. Over 60 percent of our audit clients proceed to implementation with us. Ask about this option when you get in touch and we will include an implementation estimate alongside your audit proposal.