TECHNICAL SEO CASE STUDY

Technical SEO Case Study For a Website with 30k+ Pages

20,600
Monthly Visitors
94/100
Health Score
$127K
Monthly Revenue

When a Fortune 500 company with 4.1M monthly visitors reached out to us, they had a problem most businesses would love to have: tons of traffic, but stuck rankings.

Despite having great content and strong backlinks, they were losing ground to competitors. The culprit? Critical technical SEO issues were silently killing their potential.

Here's how we fixed their 30,000-page website in 90 days—and the exact results we achieved.

Results at a Glance

Metric Result
Organic Traffic Growth 312% (5,000 → 20,600 monthly visitors)
Page Speed Improvement 70% faster (6s → 1.8s load time)
Page 1 Rankings 45+ keywords (including 12 #1 positions)
Technical SEO Health Score 94/100 (improved from 54/100)
Conversion Rate 2.3x better than before
ROI 847% in 90 days
Investment $15,000 over 90 days

💬 What the Client Said

"SEOSkit transformed our website from a technical nightmare to a high-performing asset. We're now ranking #1 for our most important keywords, and organic traffic drives 60% of our new customers. The ROI has been incredible."

— Sarah Mitchell, VP of Marketing

About the Client

Our client is a Fortune 500 company with 30,000+ website pages across multiple product lines, operating in 12 international markets. They had 4.1M monthly visitors and a strong brand presence, but were facing a critical problem: declining search visibility.

Despite massive traffic and excellent content, they were losing rankings to smaller competitors. Technical issues were slowing everything down and they couldn't compete effectively in search results. Their in-house team knew something was wrong but couldn't pinpoint the root causes.

That's when they reached out to SEOSkit.

The Challenge: What Was Killing Their Rankings

When we audited the site, we found critical technical issues that were costing them 60% of their potential traffic. Here's what we discovered:

Slow Load Times

Pages were taking 6+ seconds to load, destroying their Core Web Vitals scores and costing them 53% of mobile visitors.

Google prioritizes fast sites, and every second of delay costs 7% in conversions. At 6 seconds, they were losing 35% of potential customers before they even saw the content.

Crawl Errors

Google couldn't crawl 40% of their important pages due to broken robots.txt, redirect chains, and wasted crawl budget.

If Google can't find your pages, they can't rank them. Their best content was essentially invisible in search results.

Mobile Issues

Mobile errors were driving away half their traffic with terrible usability scores.

With Google's mobile-first indexing, mobile problems don't just hurt mobile rankings—they hurt ALL rankings across every device.

Broken Links & Chaos

The site had 30,000 pages with zero organization, hundreds of broken internal links, and messy architecture.

This wasted crawl budget, hurt user experience, and signaled to Google that the site wasn't well-maintained.

Additional Complexity

The website targeted 12 different countries with different languages. Keywords that worked in the US completely failed in Germany and Japan. Translating content while maintaining SEO value and securing backlinks from international authority sites added significant complexity.

Our Technical SEO Solution

After conducting thorough audits, we created a comprehensive technical SEO roadmap. We collaborated closely with the client's development and content teams—this partnership was mandatory to reach our goals.

Step 1: Organizing 30,000 Chaotic Pages

Imagine a library where books are thrown everywhere with no system. That was this website. Important product pages weren't ranking, users couldn't find what they needed, and Google couldn't figure out what was important.

What we did:

  • Created logical categories: Products, Services, Resources, Support
  • Implemented silo structure with topic clusters
  • Optimized internal linking strategically

Result: Google started crawling important pages 3x more often. Time to complete: 28 days.

Step 2: Removing 1,200+ Broken Links

When companies run campaigns and promotions, they create event content and link it across many pages. After campaigns end, they delete the content—creating broken links that kill SEO and waste crawl budget.

What we did:

  • Ran comprehensive audit to identify all broken links
  • Created customized reports for the technical team
  • Verified all fixes were implemented correctly

Result: Fixed 1,200+ broken links in 2 weeks, immediately improving user experience and crawl efficiency.

Step 3: Fixing No-Index Pages

Linking no-index pages with indexed pages provides zero SEO benefits and wastes precious crawl budget. We identified all no-index pages linked to indexed pages, worked with the content team to remove unnecessary pages, and added valuable pages to the sitemap.

Result: Improved internal linking structure across the entire site.

Step 4: Setting Up Proper Robots.txt

The website was wasting crawl budget on low-quality pages. We blocked 5,000 useless pages from Google's crawler, directed focus to 3,000 important pages, and set up clear robots.txt directives.

Result: Google started crawling important pages 3x more often, leading to faster indexing and better rankings.

Step 5: Fixing Thin Content

Thin content is unable to fulfill search intent and negatively impacts rankings. We found 335 pages with under 300 words that were actively hurting the site.

Metric Before After
Thin content pages 335 0
Pages missing H1 tags 86 0
Average word count 250 words 800+ words

Implementation Timeline

Timeline Key Activities
Week 1-2 Comprehensive audit, issue prioritization, roadmap creation
Week 3-4 Organized 30,000 pages, fixed 1,200+ broken links, set up robots.txt
Week 5-8 Fixed no-index issues, optimized thin content, fixed heading tags
Week 9-12 Created automated dashboard, prepared dev action plan, training
Ongoing Continuous monitoring and monthly optimization

The Results That Exceeded Expectations

Traffic & Rankings Explosion

Within the first 30 days, we saw movement. By day 60, traffic jumped 150%. By day 90, the transformation was complete.

Metric Before After Change
Monthly Organic Visitors 5,000 20,600 +312%
Keywords on Page 1 3 45+ +1,400%
#1 Rankings 0 12 New
Average Position 28.4 8.2 71% better

These weren't just any visitors—they were high-intent searchers landing on optimized product pages with lightning-fast load times.

Page Speed That Converts

Metric Before After Impact
Desktop Load Time 6.2s 1.7s 73% faster
Mobile Load Time 8.4s 2.1s 75% faster
Core Web Vitals Failed Passed ✓ All metrics

Business impact: That 70% speed improvement generated $62,614 additional monthly revenue from speed improvements alone. Pages that load in under 2 seconds convert 2.3x better than slow pages.

Technical Health Transformation

Technical SEO Health Score Improvement

We fixed 10,725 technical issues including broken links, redirect chains, server errors, and duplicate content. The site went from technical nightmare to technically excellent.

User Experience Revolution

People were bouncing at 68% because the site was slow, confusing, and broken. After our fixes:

Metric Before After Change
Bounce Rate 68% 42% -26 points
Session Duration 1:24 3:38 +158%
Pages per Session 2.1 4.8 +129%
Conversion Rate 1.2% 2.8% +133%

Visitors now stay longer, explore more pages, and convert at 2.3x the previous rate.

Revenue Impact

Period Monthly Revenue Change
Before $11,150 Baseline
Month 1 $14,820 +33%
Month 2 $32,640 +120%
Month 3 $125,700 +1,027%

Ongoing monthly revenue from organic

$127,000

Annual run rate

$1,524,000

Competitive Dominance

We didn't just improve rankings—we helped them dominate the market.

Company Page 1 Rankings Visibility Score
Our Client 🏆 45 68.2%
Competitor A 38 54.1%
Competitor B 34 48.3%
Competitor C 28 39.2%

From invisible to market leader in 90 days.

Return on Investment

The Investment

Technical SEO Audit & Strategy $3,000
Implementation (Development) $6,000
Content Optimization $3,500
Tools & Software $1,200
Project Management $1,300
TOTAL $15,000

The Return

Additional monthly revenue $127,010
Revenue in first 90 days $142,160
Payback period 14 days
ROI (first 90 days) 847%
Annual additional revenue $1,524,120
Annual ROI 9,893%

For every $1 invested, they got back $98.93 in the first year.

Key Takeaways

1. Technical SEO Must Come First

No amount of great content or backlinks can compensate for poor technical foundation. Fix technical issues before investing heavily in content or link building.

2. Page Speed Directly Impacts Everything

Improving load time from 6 seconds to 1.8 seconds didn't just help rankings—it improved user experience, conversion rates, and every metric that matters.

3. Organization Is Critical for Large Sites

With 30,000+ pages, proper organization isn't optional—it's mandatory. Create clear categories and optimize internal linking from day one.

4. Automation Is Essential at Scale

Manual monitoring of large websites is impossible. Automated dashboards and alerts are non-negotiable for maintaining technical health.

5. Content Quality Still Matters

Technical SEO creates the foundation, but thin content will still underperform. We expanded 335 pages to see maximum results.

7 Tips for Maintaining Technical SEO Health

Search Engine Crawler Budget

1. Create SEO-Friendly Site Architecture

Organize pages into proper categories and ensure every page is accessible within 3 clicks from your homepage.

2. Use Proper Meta Tags

Every page needs unique meta title and description, proper heading hierarchy (H1, H2, H3), and descriptive alt text on images.

3. Optimize Page Speed

Aim for under 2-second load times. Compress images, minify code, use CDN, and optimize Core Web Vitals.

4. Fix Crawl Issues Immediately

Use robots.txt properly, fix broken links, eliminate redirect chains, and ensure important pages are crawlable.

5. Focus on Mobile Experience

With mobile-first indexing, your mobile site must be fast, usable, and fully functional. Test regularly on real devices.

6. Audit Monthly

Perform technical SEO audits at least monthly using tools like Screaming Frog, Ahrefs, and Google Search Console.

7. Plan Technical SEO from the Start

Don't treat technical SEO as an afterthought. Build it into your website from day one to avoid costly fixes later.

Search Engine Crawler Budget

Ready to Transform Your Website's Technical SEO?

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Ready to Transform Your Website?

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We've helped 50+ businesses fix critical technical SEO issues and increase organic traffic by an average of 280%.

On your free audit call, we'll:

Review your current technical SEO health Identify your biggest technical issues Show you exactly how we'd fix them Give you a custom technical SEO roadmap

No obligations. No sales pressure. Just actionable insights.

Reading Time: 12 minutes | Category: Technical SEO Case Studies