Technical SEO Services & Website SEO Audit
If your website suffers from slow loading speeds, poor Core Web Vitals, Google Search Console indexing errors, crawl traps, or duplicate content penalties, your content will never rank. Altstag's senior technical SEO engineers inspect 150+ code checkpoints to restore your website health and guarantee sub-0.5s speed.
What Is A Technical SEO Audit?
A Technical SEO Audit is a forensic diagnostic investigation of your website's underlying code, server setup, rendering pipeline, and crawl accessibility. It ensures that search engine spiders can discover, crawl, render, and index every critical page on your site without encountering technical roadblocks.
Crawlability & Indexation
Ensuring Googlebot doesn't waste crawl budget on broken URLs, low-value parameter pages, or unintended disallow directives in your robots.txt file.
Core Web Vitals Speed
Optimizing LCP, CLS, and INP metrics to sub-0.5 seconds to pass Google's official user experience ranking criteria.
Structured Data & Schema
Injecting error-free JSON-LD schemas so search engines understand your entities, services, FAQs, and business details for rich snippet placement.
Why Technical SEO Is Non-Negotiable
You can write the most authoritative content in your industry and invest thousands in link-building campaigns, but if your website has underlying technical SEO flaws, Google will penalize or suppress your rankings.
Technical SEO creates the infrastructure required for search engines to evaluate your content's true worth. From server latency (TTFB) to JavaScript hydration and mobile layout shifts, technical fixes provide immediate ranking lifts.
Signs Your Website Has Technical SEO Issues
- ⚠️ Slow Page Speed: Taking longer than 2.5 seconds to load on mobile devices.
- ⚠️ Unindexed Pages: New pages take weeks to appear in Google search results.
- ⚠️ Declining Organic Traffic: Gradual ranking drops following Google Core algorithm updates.
- ⚠️ Keyword Cannibalization: Multiple URLs competing for the exact same target search query.
Our 150-Point Technical SEO Audit Checklist
We leave zero stones unturned. Our technical audit analyzes every critical layer of your website's performance and code.
1. Crawlability & Indexing
- ✓ Robots.txt Directive Inspection
- ✓ XML & Image Sitemap Health
- ✓ Crawl Budget Waste Pruning
- ✓ Googlebot Render Engine Test
2. Core Web Vitals & Speed
- ✓ LCP (Largest Contentful Paint) < 1.2s
- ✓ CLS (Cumulative Layout Shift) < 0.05
- ✓ INP (Interaction to Next Paint) < 100ms
- ✓ Server TTFB Latency Reduction
3. Canonical & Duplication
- ✓ Canonical Tag Parameter Alignment
- ✓ HTTP/HTTPS & WWW Redirection
- ✓ Paginated Series Canonicalization
- ✓ Trailing Slash URL Normalization
4. Schema & Structured Data
- ✓ Organization & LocalBusiness JSON-LD
- ✓ Service & Product Schema Rich Snippets
- ✓ FAQPage & Article Markup
- ✓ BreadcrumbList Schema Validation
Sub-0.5s Loading Speed & 100/100 Core Web Vitals
Speed is not just a user experience feature; it is an official Google ranking factor. Here is how we guarantee your site passes Core Web Vitals with 100/100 scores.
Measures how quickly the main above-the-fold content loads. We inline critical CSS, preload hero media assets, and use edge CDN caching to reduce LCP below 0.8 seconds.
Measures visual stability. Unexpected layout shifts annoy users and hurt rankings. We set explicit aspect ratios on all images, SVGs, and ad containers to guarantee 0.00 CLS.
Measures page responsiveness to user clicks and taps. We break up heavy JavaScript main-thread tasks, defer non-critical scripts, and optimize event listeners to keep INP under 50ms.
Comprehensive Technical Fixes We Implement
From crawl budget log analysis to canonical URL consolidation and JavaScript SSR debugging, we resolve every technical issue holding your site back.
Crawl Budget Optimization
Prune thin, auto-generated parameter URLs and fix 404 crawl loops so Googlebot focuses 100% of its resources on indexing your primary money pages.
GSC Coverage & Indexation Cleanup
Resolve 'Discovered - currently not indexed' and 'Crawled - currently not indexed' warnings in Google Search Console.
Dynamic XML Sitemap Structuring
Generate automated, dynamic XML sitemaps weighted by page priority and submit cleanly to Google Search Console and Bing Webmaster Tools.
Robots.txt Directives Architecture
Clean up disallow rules to prevent accidental blocking of critical CSS/JS assets while keeping search bots out of private admin endpoints.
Canonical URL & Duplicate Content
Fix self-referencing canonicals, parameter variations, and cross-domain URL parameters to consolidate PageRank link authority.
Schema JSON-LD Injection
Inject custom, valid JSON-LD structured data for Organization, LocalBusiness, Service, Product, FAQPage, and BreadcrumbList schemas.
Internal Linking & SILO Hierarchy
Sculpt PageRank link equity from authority pages down to commercial conversion hubs using keyword-optimized internal anchor text.
Redirect Chain & 404 Cleanup
Flatten redirect loops, eliminate 301 multi-hop chains, and fix 404 broken links to preserve 100% of incoming backlink link juice.
JavaScript SEO & Mobile Health
Debug SSR/hydration issues for React/Next.js platforms and ensure 100% mobile usability across 320px–1920px viewports.
Technical SEO Audit Case Studies
Real performance turnarounds achieved through Altstag's technical code cleanup and speed optimization.
NovaPay SaaS Infrastructure
Resolved 4,200 GSC coverage errors, injected custom SaaS Schema JSON-LD, and reduced LCP from 4.2s to 0.35s.
Apex Luxury Resorts
Eliminated duplicate pagination canonical errors, optimized WebP images, and implemented Hotel Room availability schema.
HealthPlus Diagnostics
Cleaned up 120 broken 404 links, optimized Google Business Profile local schema, and accelerated mobile page rendering.
Technical SEO Audit & Fix Pricing Tiers
Select the technical SEO diagnostic tier that fits your website's size and technical complexity.
Technical SEO Audit Blueprint
Full 150-point technical inspection report with prioritized code fix developer guidelines.
- ✓ 150+ Point Code & Speed Inspection
- ✓ Google Search Console Error Audit
- ✓ Core Web Vitals Diagnostic Report
- ✓ Schema JSON-LD Validation Assessment
- ✓ Developer Action Roadmap Video
Speed & Core Web Vitals Fix
Full technical audit plus hands-on developer implementation to guarantee 95+ Vitals scores.
- ✓ Everything in Audit Blueprint
- ✓ Guaranteed Sub-0.5s Loading Speed
- ✓ 100/100 Mobile Core Web Vitals Implementation
- ✓ Schema JSON-LD Code Injection
- ✓ 301 Redirect & Canonical Cleanup
Enterprise Technical SEO
Ongoing monthly technical governance for enterprise SaaS platforms and multi-market e-commerce stores.
- ✓ Ongoing Log File & Crawl Budget Monitoring
- ✓ JavaScript & Headless SSR Debugging
- ✓ International Multi-Lingual hreflang Audit
- ✓ Dedicated Senior Technical SEO Engineer
- ✓ 24/7 Priority Emergency Fix Support
What Clients Say About Our Technical SEO
Real feedback from engineering leads and digital marketers who resolved critical technical website issues with Altstag.
"Altstag's technical audit uncovered massive canonical redirect loops that were destroying our search authority. Once fixed, our organic traffic increased by 380% in 60 days."
"Our hotel website failed Core Web Vitals on mobile. Altstag optimized our critical CSS and asset loading, achieving 100/100 speed scores. Direct bookings quadrupled."
"Altstag's Schema JSON-LD injection gave our clinic listings rich stars in Google search results. Our organic CTR jumped from 2.1% to 7.4%."
20 Frequently Asked Questions About Technical SEO
Everything you need to know about crawl errors, Core Web Vitals, JSON-LD schema, canonicals, and site health audits.
Request Your 150-Point Technical SEO Audit
Submit your website details to receive a comprehensive diagnostic report and speed audit within 24 hours.