Hire New Relic Developers

New Relic is a commercial application performance monitoring (APM) platform that instruments server-side code – PHP in WordPress’s case – to collect detailed timing data for every request. It tracks which functions are called, how long each takes, what database queries run, what external API calls are made, and where time is spent. This data is aggregated, analysed, and displayed in dashboards that make performance problems visible at a level of detail that tools like GTmetrix, Google PageSpeed, or Query Monitor cannot provide.

For WordPress performance work, New Relic is most valuable when the site is slow in ways that are not explained by asset size or caching. Common discoveries include: a single slow database query running on every page load, a plugin making external API calls on every request, PHP functions consuming unexpected amounts of time, or memory allocation patterns that cause page generation to be slow before a single byte is sent to the browser.

New Relic integrates with WordPress at the PHP agent level – the New Relic PHP agent is installed on the server and automatically instruments PHP code without requiring changes to the WordPress codebase. Custom instrumentation can be added for more detailed measurement of specific WordPress operations. New Relic has a free tier (New Relic One) that covers many diagnostic use cases. How To Speed Up WordPress Performance Guide.

New Relic work on WordPress projects typically involves:

• Installing and configuring the New Relic PHP agent on a WordPress server – setting up monitoring and verifying data is being collected correctly.
• Diagnosing slow WordPress pages – using New Relic transaction traces to identify which plugins, queries, or functions are causing slow page generation.
• Database query optimisation – identifying the slowest queries from New Relic’s database query breakdown and working with a developer or DBA to optimise them.
• Plugin performance auditing – using New Relic to measure the performance impact of individual plugins and identify which ones are contributing most to slow page load.
• Setting up New Relic alerts – configuring alert conditions for response time, error rate, and throughput thresholds so performance regressions are caught immediately.
• Reading and interpreting New Relic data – translating New Relic dashboards and transaction traces into specific recommendations for a development team.

New Relic expertise is a combination of knowing the tool and knowing what to look for in the data. Look for developers who can read a New Relic transaction trace and identify the root cause of a performance problem – not just someone who can install the agent and navigate the dashboard.

Ask how they have used New Relic to diagnose a specific performance problem on a WordPress site. A developer who can describe a specific investigation – what the symptoms were, what New Relic showed, what the root cause was, and how it was fixed – demonstrates practical experience with the tool rather than theoretical familiarity.

New Relic is a diagnostic tool, not a fix. The value of a New Relic expert is in accurate diagnosis leading to targeted fixes. Ask what typically comes after New Relic diagnosis – the developer should describe how findings translate to specific code or configuration changes rather than stopping at the diagnosis stage.

Common New Relic + WordPress situations: How To Speed Up WordPress Performance Guide.

• New Relic not showing WordPress transaction data – the PHP agent is not installed correctly, the licence key is incorrect, or the agent is not able to communicate with New Relic’s servers. Check the agent log at /var/log/newrelic/php_agent.log.
• New Relic showing high database time – a plugin is running inefficient queries. Use New Relic’s database tab to identify the specific queries, then cross-reference with Query Monitor in WordPress to identify which plugin generates them.
• New Relic showing high external call time – a plugin is making slow API calls on every page load. Identify the API being called from New Relic’s external services tab and evaluate whether the calls can be cached or moved to a background job.
• Memory limit errors appearing in New Relic error traces – a plugin or theme is consuming excessive memory. New Relic’s transaction traces show which function calls precede the memory exhaustion, pointing to the responsible code.

The New Relic PHP agent needs to be updated periodically to maintain compatibility with new PHP versions and to access new monitoring features. Agent updates are typically safe but should be tested on staging before applying to production.

New Relic alert policies should be reviewed periodically. As site traffic patterns change, alert thresholds may need adjustment – thresholds calibrated for low-traffic periods generate false alerts during traffic spikes and vice versa.

New Relic data retention varies by plan. Free tier data is retained for a limited period. For sites where performance trend analysis over months is important, a paid plan with longer retention is appropriate.

When posting a New Relic project on Codeable, describe the performance symptom – which pages are slow, under what traffic conditions, and what you have already tried. Also mention whether New Relic is already installed (with data available) or needs to be set up from scratch. If New Relic is already installed, share access or screenshots of the relevant dashboards to help the developer scope the work.