CASE STUDY
How Technical SEO Delivered 110% Growth in Top-10 Keyword Search Volume
How Digital Promenade resolved critical technical SEO issues and improved organic search visibility for a leading UK structural engineering company.
CASE STUDY
Campaign at a glance
01
Client Overview
A leading UK-based structural engineering company wanted to strengthen its organic search performance and improve its website's ability to attract relevant traffic through Google.
With a large website containing numerous pages and images, the company needed a focused technical SEO strategy to address performance bottlenecks, improve crawlability, and help search engines better understand and index its content.
02
The Challenge: Technical Issues Limiting Organic Search Potential
The website faced several technical SEO issues affecting performance, user experience, search engine accessibility, and structured data interpretation.
Key challenges included:
The objective was to resolve these technical barriers and establish a stronger foundation for organic search growth.
03
The Strategy: A Scalable Technical SEO Improvement Plan
Digital Promenade implemented targeted technical SEO improvements across the website, prioritising performance, image accessibility, visual stability, structured data, and sitemap accuracy.
JavaScript Cleanup and Performance Optimisation
Removed unused JavaScript and commented-out code to reduce unnecessary processing overhead and support improved website responsiveness.
Image SEO Across 500+ Pages
Added image alt attributes across more than 500 pages and converted images to WebP format where appropriate, improving image context and supporting more efficient loading.
Core Web Vitals and Layout Stability
Addressed layout-shift issues across more than 100 pages, focusing on elements such as banners and review sections that could move unexpectedly during page loading.
Structured Data Error Resolution
Corrected article schema errors across more than 200 pages to improve structured data validity and help search engines interpret page information more accurately.
XML Sitemap Corrections
Fixed date-format inconsistencies in the XML sitemap to ensure valid sitemap entries and more accurate content-update signals.
04
The Results: 110% Growth in Top-10 Keyword Search Volume
Following the technical SEO improvements, the campaign recorded a substantial increase in the search volume associated with keywords ranking in Google's top 10.
Reported growth within one month
Pages covered across image SEO, layout stability and structured data improvements respectively
| Optimisation area | Scale of work | Improvement delivered |
|---|---|---|
| Image SEO | 500+ pages | Alt attributes and WebP image conversion |
| Core Web Vitals | 100+ pages | Layout-shift issue resolution |
| Structured Data | 200+ pages | Article schema error corrections |
| JavaScript | Website-wide cleanup | Removal of unused and commented-out code |
| XML Sitemap | Sitemap-level corrections | Date-format inconsistencies fixed |
Key Achievements
110% Growth in Top-10 Keyword Search Volume
The reported search volume associated with keywords ranking in Google's top 10 increased by 110% in one month.Technical Improvements Across Hundreds of Pages
Image optimisation, layout stability, and structured data corrections were implemented across hundreds of website pages.Improved Technical SEO Foundation
The campaign addressed issues affecting website performance, image context, structured data validity, and sitemap accuracy.05
The Impact: Turning Technical Improvements Into Search Opportunities
The campaign demonstrated how systematic technical SEO improvements can help unlock organic search opportunities for large websites.
By resolving performance bottlenecks, improving image accessibility, correcting structured data, and addressing sitemap inconsistencies, Digital Promenade strengthened the website's technical foundation.
The reported 110% increase in top-10 keyword search volume highlights the potential impact of addressing technical SEO issues as part of a broader organic growth strategy.
06
Want to Improve Your Website's Technical SEO Performance?
At Digital Promenade, we help businesses identify and resolve technical SEO issues that can limit organic search performance.
From Core Web Vitals and structured data to image optimisation, crawlability, and indexing, our approach focuses on building technically sound websites that support stronger search visibility and sustainable growth.