Andrii Tovstonos
Expert Website Maintenance & High-Performance Optimization
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Firewood Delivery Logic & Maps Integration
➤ The Challenge: A local firewood supplier needed to automate delivery quotes. Manual distance checking was slow and prone to errors.
➤ The Solution: I built a custom Vanilla JS tool with deep Maps API integration:
• Google Maps API: Automated real-time distance calculation for every order.
• Dynamic Pricing: Logic that factors in wood type, volume, weight, and mileage.
• UX/UI: Lightweight, mobile-first interface for instant customer quotes.
➤ The Result:
• Automation: Zero manual checks needed; instant pricing for customers.
• Efficiency: Eliminated pricing disputes and optimized the booking flow.
• Performance: High-speed tool with zero external library dependencies.
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Industrial B2B Growth & Maintenance Value
➤ The Challenge: A legacy industrial site was invisible to engineers. Goal: Transform it into a lead-gen tool via technical excellence.
➤ The Solution: I deployed a comprehensive technical and content strategy:
• Custom JS Engineering: Developed an intricate lifespan calculator for parts.
• 100/100 Speed: Reached perfect performance scores via deep code refactoring.
• Expert Content: Launched a research-driven blog that dominated technical search intent.
➤ The Result (The Evidence):
• Growth Spike: Deployment led to a 400% surge in organic traffic.
• The Maintenance Gap: As shown in the chart, the cessation of expert support ("Too Expensive") coincided with a clear loss of momentum.
• Proven ROI: Technical excellence isn't just a setup - it's the engine that sustains market leadership.
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Achieving 99/100 Mobile Speed & Breaking the Traffic Plateau
➤ The Challenge:
The site was stuck in the "Yellow Zone" (~70 PageSpeed). High-quality content was held back by technical overhead, resulting in a stagnant traffic plateau.
➤ The Solution: I executed a deep technical overhaul to unlock the site's ranking potential:
• 0ms Blocking Time: Eliminated JS execution delays for instant interactivity.
• Visual Stability: Achieved a 0.001 CLS, ensuring a perfect UX.
• Speed: Optimized the rendering path to hit 0.9s FCP and 99/100 Mobile score.
➤ The Result:
• Plateau Broken: Technical fixes (last green dot on chart) acted as a catalyst for new organic growth.
• Elite Performance: Sustained 99+ PageSpeed scores on mobile.
• Business Impact: Improved rankings and higher conversion rates.
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100% Organic Growth via Technical Refactoring
The Challenge: Stagnant traffic and poor mobile UX due to bloated legacy scripts (jQuery), unoptimized media, and weak semantic structure.
The Solution: I executed a deep technical overhaul to modernize the stack:
• Vanilla JS Migration: Replaced jQuery with pure, high-performance JavaScript.
• Smart Media: Implemented WebP/AVIF, responsive sizes, and lazy-loading.
• SEO Foundation: Cleaned HTML semantics and added Schema.org microdata.
• On-Page: Refreshed Meta Tags to align with search intent.
• Bootstrap 5 Tuning: Optimized CDN delivery and CSS path for zero speed impact.
The Result: 99–100 Mobile PageSpeed: Perfect scores even with a CSS framework.
Traffic Surge: Organic growth from 14K to 30K+ monthly sessions in 12 months.
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