Case Study: SpareRoom achieves faster time-to-resolution and improved engineering productivity with Logz.io

How SpareRoom Cut Time to Resolution and Improved Productivity with Logz.io

SpareRoom, the UK’s leading flat- and house-share site with over 7 million registered users and teams in Manchester and London, was struggling to scale and maintain an on‑premises ELK stack as the business grew. Upgrades were painful, heavy queries frequently pushed memory limits, and the engineering team didn’t want to keep investing resources in running logging infrastructure while they moved parts of their monolith to microservices.

By adopting Logz.io and implementing structured JSON logging at source, SpareRoom consolidated application and Apache logs into a single, searchable view and built dashboards and alerts (integrated with Slack and OpsGenie) for proactive monitoring. The platform now monitors over 10 million requests a day, helped the team quickly identify incidents like abnormal registrations and a Visa outage, and materially reduced time to resolution and engineering effort — letting teams focus on product stability and feature work rather than log maintenance.

SpareRoom

Steve Elliott

Head of Engineering