HarshPatel

Ahmedabad, Gujarat
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SEO Optimization Services - Technical SEO, Core Web Vitals & Schema Markup

From $250

Expert technical and on-page SEO services that drive sustainable organic traffic. Core Web Vitals optimization, semantic HTML, JSON-LD schema markup, dynamic sitemaps, and structured data audits for developers and business owners.

SEO Optimization Services - Technical SEO, Core Web Vitals & Schema Markup 1
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What's Included

  • Core Web Vitals
  • Semantic HTML
  • Schema Markup
  • Dynamic Sitemaps
  • Core Web Vitals Audit & Optimization (LCP/CLS/INP)
  • Semantic HTML5 Structure Review
  • JSON-LD Structured Data (10+ Schema Types)
  • Rich Results Implementation (FAQ
  • Breadcrumbs
  • Stars)
  • Dynamic XML Sitemaps (Pages
  • Images
  • Videos)
  • robots.txt Configuration
  • Canonical Tag Audit & Implementation
  • Meta Title & Description Optimization
  • Internal Linking Architecture
  • Image Alt Text & WebP Optimization
  • Crawl Budget Analysis
  • Google Search Console Setup
  • Redirect Chain Audit & Repair
  • Mobile Usability Audit
  • Full SEO Audit Report + Action Plan

SEO Optimization — Rank Higher. Load Faster. Convert Better.

Search Engine Optimization in 2024 is a technical discipline as much as it is a content strategy. Google's ranking algorithms evaluate hundreds of signals — from page speed milliseconds to structured data completeness to crawl budget efficiency — and most websites fail on the technical fundamentals long before content quality becomes the limiting factor. I specialize in the technical SEO layer: the code-level decisions that determine whether Google can discover, crawl, index, understand, and rank your website.

Technical SEO Services

⚡ Core Web Vitals Optimization

Core Web Vitals are Google's user experience metrics that directly influence search rankings. Since the Page Experience update, a poor CWV score is a confirmed ranking disadvantage. I audit and optimize all three metrics:
Largest Contentful Paint (LCP) — Target: < 2.5s LCP measures how quickly the largest visible element renders. Poor LCP is almost always caused by one of four things: slow server response, render-blocking resources, slow resource load times, or client-side rendering delays.
What I fix:
  • Server response time (TTFB) via caching (Redis, edge caching, CDN)
  • Render-blocking CSS — critical CSS inlining and stylesheet deferral
  • Render-blocking JavaScript — async/defer attributes and code splitting
  • LCP image preloading via <link rel="preload"> and fetchpriority="high"
  • Next.js Image / native <img> with correct srcset and modern format (WebP/AVIF)
  • CDN configuration for sub-50ms asset delivery
Cumulative Layout Shift (CLS) — Target: < 0.1 CLS measures visual stability — how much elements move unexpectedly as the page loads.
What I fix:
  • Explicit width and height on every <img> and <video> element
  • aspect-ratio CSS for responsive images that reserve space before load
  • Font swap handling — font-display: optional or font-display: swap with size-adjust
  • Dynamic content injection above existing content (ads, cookie banners, embeds)
  • min-height on containers populated by JavaScript
Interaction to Next Paint (INP) — Target: < 200ms INP replaced FID in March 2024 as the interactivity Core Web Vital. It measures the latency of all interactions throughout the page lifecycle.
What I fix:
  • Long tasks (>50ms) breaking up with scheduler.yield() or setTimeout chunking
  • JavaScript bundle splitting — shipping only code needed for the current page
  • Event handler optimization — removing unnecessary re-renders and heavy synchronous calculations from click handlers
  • Third-party script impact analysis and deferral strategy

🏗️ Semantic HTML & Document Structure

Search engines understand content through the HTML structure that wraps it. Semantic HTML is the foundation of on-page SEO — and most websites get it wrong.
What I audit and implement:
  • Heading hierarchy — one <h1> per page, containing the primary keyword. <h2> for section headings, <h3> for subsections — never used for styling
  • Landmark elements<header>, <nav>, <main>, <article>, <section>, <aside>, <footer> with correct usage (not as styled divs)
  • Link anchor text — descriptive anchor text on all internal and external links. No "click here" or "read more"
  • Image alt attributes — descriptive, keyword-relevant alt text on all informational images. Empty alt (alt="") on decorative images
  • <title> and <meta description> — unique, compelling, keyword-rich values on every page. No duplicates, no truncation
  • Canonical tags<link rel="canonical"> on every page, preventing duplicate content from pagination, filters, and URL parameters
  • <meta robots> — noindex on thin, duplicate, or private content. Index/follow correctly applied sitewide

🗂️ Schema Markup & Structured Data (JSON-LD)

Structured data tells Google exactly what your content means — enabling rich results (star ratings, FAQs, breadcrumbs, product prices) that dramatically increase click-through rates.
Schema types I implement:
Schema TypeRich Result UnlockedBest For
OrganizationKnowledge panelBusiness websites
PersonKnowledge panelPersonal/portfolio sites
WebSite + SearchActionSitelinks search boxLarge content sites
Article / BlogPostingArticle rich resultsBlogs and news
Product + OfferPrice, availability, ratingE-commerce
Review / AggregateRatingStar ratingsProducts, services, businesses
FAQPageExpandable Q&A in SERPsService and product pages
HowToStep-by-step rich resultTutorial content
BreadcrumbListBreadcrumb trail in SERPsAll multi-level sites
ServiceService rich resultsFreelance and agency sites
EventEvent rich resultsConference and event pages
JobPostingJob listing rich resultsCareer pages
CourseCourse rich resultsEducation platforms
LocalBusinessLocal pack + mapsLocal businesses
All structured data is validated against Google's Rich Results Test and Schema.org specifications before delivery.

🗺️ XML Sitemaps & Crawl Budget Management

Google allocates a crawl budget to every website — the number of pages Googlebot crawls per day. Sites with thousands of pages need careful sitemap architecture to ensure high-value pages are prioritized.
What I implement:
  • Dynamic XML sitemaps — auto-generated via Next.js Route Handlers or WordPress plugins, always reflecting current content
  • Sitemap index — for large sites, a sitemap index file pointing to separate sitemaps for pages, posts, products, and images
  • Image sitemaps<image:image> extensions to ensure product and editorial images are indexed
  • Video sitemaps — for sites with video content
  • lastmod timestamps — accurate last-modified dates so Googlebot re-crawls updated content promptly
  • Priority and changefreq — calibrated per content type, not set to "0.5/weekly" across the board
  • robots.txt — disallowing admin panels, duplicate paginated content, search result pages, and staging environments from crawling

🔗 Internal Linking Architecture

Internal links distribute PageRank across your site and help Google understand your content hierarchy. A well-designed internal linking structure can move pages from page 3 to page 1 without a single external backlink.
What I implement:
  • Topic cluster model — pillar pages linked to from all cluster content, with cluster pages linking back to the pillar
  • Contextual internal links — links from within body content with descriptive anchor text, not just navigation menus
  • Orphan page identification and repair — every page in your sitemap should be reachable within 3 clicks from the homepage
  • Pagination handlingrel="next" and rel="prev" (where still relevant) or proper canonical handling for paginated series

📊 SEO Audit & Reporting

Every engagement begins with a comprehensive technical SEO audit covering:
  • Crawl analysis (Screaming Frog / Sitebulb)
  • Index coverage report (Google Search Console)
  • Core Web Vitals field data (CrUX report)
  • Duplicate content analysis
  • Broken links (4xx) and redirect chains (301 → 301)
  • Missing/duplicate/truncated title tags and meta descriptions
  • Missing alt attributes
  • Slow page identification
  • Structured data errors and warnings
  • Mobile usability issues
  • International SEO issues (hreflang errors, if applicable)
Deliverable: a prioritized action plan with impact estimates and implementation instructions.

Technology & Tools

Google Search Console · Google PageSpeed Insights · Lighthouse · Screaming Frog · Ahrefs / Semrush · Schema.org / JSON-LD · Google Rich Results Test · Chrome DevTools Performance Panel · WebPageTest · CrUX (Chrome User Experience Report) · Cloudflare · Next.js Metadata API

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Let's discuss how we can help with your project.

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