PERFORMANCE
Monitoring Magento with New Relic instead of guessing
Use New Relic traces and transaction data to see whether slow requests come from PHP, database queries, external APIs or the front end.
By VISIBI Performance team·Reviewed by Saeed Ak, Co-founder & CTO·Updated 29 September 2026·7 min read
QUICK ANSWER
Use New Relic traces and transaction data to see whether slow requests come from PHP, database queries, external APIs or the front end.
FROM OUR ENGINEERING WORKREAL CASE
Instead of guessing, we use New Relic traces to see whether slow requests come from PHP, database queries, external APIs or front-end resources.
KEY TAKEAWAYS
✓Monitoring turns guesses into evidence.
✓Transaction traces show exactly where time is spent.
✓Alert on user-facing slowness, not just CPU.
STEP BY STEP
Evidence-led performance fixing
1Find slowest transactions
2Open traces
3Identify PHP, DB or API cause
4Fix & deploy
5Alert on regressions
What to look at
- Slowest transactions by total time
- Database queries per request
- External API calls (payments, ERP, search)
- Error rates by endpoint
- Browser monitoring for real users
Turn insight into fixes
Fix the slowest high-traffic transactions first, then set alerts for response time and error spikes.
Common mistakes to avoid
✕Only testing the homepage
✕Optimising lab scores instead of real-user data
✕Adding third-party scripts without a performance budget
✕Leaving load testing until the week before peak
HOW VISIBI CAN HELP
How we help with performance
01MeasureReal-user Core Web Vitals and load tests on key journeys.
02Fix in codeOur developers fix the root cause, not just the symptom.
03Protect peaksAutoscaling, caching and war-room cover for big days.
04MonitorAlerts on speed and checkout regressions with VISIBI Guard.
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Frequently asked questions
Is New Relic included with Adobe Commerce Cloud?
Yes, New Relic APM is included with Adobe Commerce Cloud plans.
Can I use it on Magento Open Source?
Yes, with your own licence.
Can you set up dashboards?
Yes.
SA
Reviewed by Saeed Ak · Co-founder & CTO25 years engineering high-traffic ecommerce, cloud and security platforms. Written by the VISIBI Performance team.Meet the team →
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