This week's Automotive reliability rankings for the week of 20 April 2026 reveal a largely strong performance across the sector, with four of the five monitored platforms achieving near-perfect or perfect uptime. However, AutoTrader stands out as a significant outlier, recording 0% uptime — indicating a complete outage during the monitoring period. The results highlight meaningful differences not just in availability but also in response speed across competing platforms.
- CarGurus and Carwow both achieved 100% uptime with zero incidents, with Carwow posting the fastest response time of 124ms across the entire leaderboard.
- Motors.co.uk also maintained 100% uptime but recorded a notably slower response time of 851ms, suggesting potential performance optimisation opportunities.
- Kelley Blue Book narrowly missed a perfect score with 99.8% uptime and a solid 776ms response time, recording no discrete incidents during the week.
- AutoTrader suffered a complete outage this week, logging 0% uptime — a critical reliability failure that would have left users unable to access the platform throughout the monitoring period.
Uptime This Week
CarGurus takes the top spot this week by combining perfect uptime with a competitive 200ms response time, making it both reliable and performant. Carwow deserves particular recognition as the fastest platform in the ranking at 124ms, and despite finishing second due to ranking methodology, its speed advantage is substantial. Motors.co.uk and Kelley Blue Book round out a solid mid-table, both demonstrating acceptable reliability even if neither matches the speed leaders. AutoTrader's 0% uptime result is a serious concern for any business or consumer depending on the platform, and it underscores why independent uptime monitoring matters for making informed choices.
Response Time
Response time comparison across all ranked providers.
Incidents & Downtime
Incident frequency and total downtime across the ranking period.
Which Should You Choose?
When choosing an automotive platform — whether as a dealer, advertiser, or consumer — prioritise providers with a consistent track record of high uptime and fast response times, as even brief outages can result in missed leads or sales opportunities. Use an independent monitoring service like Uptrue to track real-world availability over time rather than relying solely on provider-reported statistics.
All uptime, response time, and incident data is collected by Uptrue's independent monitoring infrastructure. HTTP checks run every 5 minutes. An incident is recorded only after 2+ consecutive failed checks. Uptrue is not affiliated with any monitored service. For corrections: reports@uptrue.io