Managing Three
Complex WooCommerce
Websites With
47,774+ Lines of
Custom Code
A detailed look at how we maintain, optimize and support three production WooCommerce websites with a large custom codebase, multiple integrations and high business criticality.
and Still Going On
(Continuous Monitoring)
The Ecosystem
Three production websites. One complex ecosystem.
This case study covers ongoing technical maintenance, troubleshooting and improvements for three live WooCommerce websites with a large codebase, custom functionality and multiple third-party integrations.
Three unique business websites. Multiple integrations. One reliable maintenance partner.
(Custom Tables)
Ongoing Maintenance
How we helped maintain the websites over three years.
Pegasus Digital Crew provided ongoing WordPress and WooCommerce maintenance, technical support and development throughout the 36 month engagement.Our ongoing maintenance and support over the last 36 months has helped keep the websites secure, stable and performant.
and Still Going On
Regular updates
WordPress core, plugins and
themes updates, with careful
testing to avoid conflicts and
downtime.
Ongoing troubleshooting
Quick identification and
resolution of errors, bugs and
unexpected behaviour.
Security hardening
Firewall rules, malware scans,
login protection and continuous
security monitoring.
Performance optimization
Database optimization, image
optimization, caching and
server-level improvements.
Backup and recovery
Automated backups, manual
backups before major changes
and quick recovery when needed.
Content and functional support
Updating content, fixing layout
issues and supporting day-to-day
business requirements.
Why Pegasus Digital Crew for Complex WordPress Maintenance
Pegasus Digital Crew maintained three production WooCommerce websites for 36 months, supporting large custom codebases, 327 custom functions, 648 database tables, 20 server cron jobs and 20+ custom integrations. The engagement included WordPress and WooCommerce updates, custom code troubleshooting, security, backups, database optimization, performance monitoring, staging deployments and ongoing technical support.
Can Pegasus Digital Crew Maintain a Complex WooCommerce Website?
Yes. Pegasus Digital Crew has experience maintaining complex production WooCommerce websites. In this engagement, we maintained three production WooCommerce websites for 36 months, supporting more than 47,774 lines of custom code, 20+ custom integrations, 327 custom functions and 648 database tables. The work included WordPress and WooCommerce updates, custom code troubleshooting, database optimization, security reviews, backup management, performance monitoring and ongoing technical support. Major changes, fixes and new features were tested in staging before client approval and controlled deployment to production. The maintenance work also involved investigating legacy dependencies, testing compatibility and monitoring systems after improvements. This demonstrates experience supporting WooCommerce websites where custom functionality, integrations, databases and business critical operations require ongoing technical maintenance.
Staging first. Approval next. Production last.
All major changes, new features and implementations were first tested on a staging environment. After client approval, changes were then pushed to the live environment.
Make changes
Updates, fixes or new features are implemented on staging.
Test thoroughly
Functionality, design and integrations are verified.
Get client approval
Changes are reviewed and approved by the client.
Move to live
Once approved, changes are deployed to the production website.
For individual website fixes and defined tasks, we also provide one time WordPress website maintenance.
Why this approach works
It reduces the risk of errors on the live site.
Gives the client confidence and ensures a smooth and stable experience.
Allows proper testing of complex functionality.
Helps maintain uptime and business continuity.

Moving third-party data into WooCommerce
We also helped migrate data from several third-party systems into WooCommerce. This included:
- Product data (simple and variable products)
- Customer data
- Order history
- Custom fields and meta data
- Tax and shipping configurations
- Testing and validation after import
"The data migration was handled smoothly and accurately. It saved us a lot of manual work and everything was correctly set up in WooCommerce."
Client Feedback
Three websites, three separate codebases
Each website has its own codebase, custom functionality and specific technical requirements.
| Website | Lines of Code | Custom Functions | Templates | Database Tables | Active Plugins | Media Files |
|---|---|---|---|---|---|---|
| Website 1 | 15,200 | 102 | 180 | 220 | 8 | 2,841 |
| Website 2 | 18,450 | 118 | 210 | 248 | 7 | 3,120 |
| Website 3 | 14,124 | 107 | 258 | 180 | 5 | 2,313 |
| Total | 47,774+ | 327 | 648 | 648 | 20 | 8,274 |
This is more than a
WooCommerce store.
These websites are not just online stores. They include custom features, third-party integrations, a large codebase and many business-critical functions.
- Custom functionality
- Third-party integrations
- Complex business logic
- Four fields and critical operations
- Ongoing feature development
Real business impact
Measured across the 36-month maintenance period.
458,407
Total Visitors
119,249
Total Orders
159,994
Products Managed
136,348
Registered Users
“Our 3 websites are the core of our business. Your support
has been essential in keeping them running smoothly.”
Client Feedback

When a visual change can affect business logic
Even small visual or layout changes can impact custom functionality. That’s why we always test thoroughly before pushing changes live.
Layout changes
We check if any layout or design change affects custom features.
Feature testing
All key functionality is tested after visual changes.
Cross-device testing
We verify the changes on desktop, tablet and mobile.
Client review
Changes are shared with the client for final approval.
Why development testing is critical
Many features are connected through custom code. Proper testing helps us catch issues early and prevent unexpected problems on the live site.
Performance improvements after system-level investigation
Where performance issues occur, we don’t just look at one factor. We investigate the complete stack.
3.60s
Average Page Load Time
Average Page Load Time
Server Contentful Paint
Cumulative Layout Shift
Legacy dependencies need controlled upgrades
Some websites rely on older PHP libraries, custom plugins or third-party scripts. These require careful handling and testing before any updates.
Our process
- Identify legacy dependencies
- Test compatibility
- Update in a controlled environment
- Monitor after deployment
Our approach
- Analyse all possible causes
- Fix issues at server, code and content level
- Retest and monitor after improvements
These technical maintenance activities were performed and managed by Pegasus Digital Crew throughout the engagement.
What ongoing technical maintenance involves
Ongoing maintenance for these websites includes a wide range of tasks.
WordPress
Core Updates
WooCommerce
Updates
Custom
Code Support
JavaScript
Front-End Fixes
MySQL
Database Optimization
Performance
Monitoring
Security
Reviews
Backup
Management
Integrations
Support
Ongoing
Troubleshooting
Why this project demonstrates advanced WordPress skills
- Working with large custom codebases
- Managing multiple WooCommerce websites
- Handling third-party integrations
- Troubleshooting complex issues
- Security hardening
- Performance optimisation
- Ongoing feature support
Need Technical Support for a Complex WooCommerce Website?
Let’s discuss how we can help you maintain,
optimize and grow your website.
For another example of structured WordPress management across multiple websites, see our multi website WordPress maintenance case study for a professional services organization in Geneva, Switzerland.