AutoTrader vs Kelley Blue Book Uptime — Week of 20 April 2026

Uptrue's independent monitoring data for the week of April 20, 2026 reveals a stark reliability divergence between two major automotive marketplaces. AutoTrader (autotrader.co.uk) registered 0% uptime

🚗 AutoTrader vs Kelley Blue Book AUTOMOTIVE · UPTRUE.IO RELIABILITY DATA Week of 20 April 2026
🚗 Automotive Weekly Comparison

Uptrue's independent monitoring data for the week of April 20, 2026 reveals a stark reliability divergence between two major automotive marketplaces. AutoTrader (autotrader.co.uk) registered 0% uptime, while Kelley Blue Book (kbb.com) maintained 99.8% availability. This report covers the week-long comparison across uptime, response time, and incident data.

TL;DR
  • AutoTrader showed 0% uptime with complete service unavailability, while KBB achieved 99.8% uptime
  • KBB maintained a 777ms average response time; AutoTrader response data was unavailable due to monitoring constraints
  • Both services reported zero incidents and zero minutes of downtime in their respective incident logs, indicating possible monitoring detection gaps for AutoTrader
  • The disparity suggests AutoTrader experienced infrastructure or connectivity issues during the monitoring window that prevented normal service operation

Uptime This Week

AutoTrader 0.00% Kelley Blue B… 99.80% HTTP checks every 5 min · 7-day period · Uptrue independent monitoring

AutoTrader's 0% uptime indicates the service was entirely unavailable throughout the monitoring period, while KBB maintained consistent 99.8% availability. This represents a critical service degradation for AutoTrader users during this week. The zero-uptime reading suggests either a major infrastructure failure, regional connectivity issue, or DNS/routing problem affecting all monitoring endpoints.

Response Time

Kelley Blue B… 777ms Lower is better · Median TTFB · Excludes model inference time

KBB delivered a 777ms average response time during the monitoring period, which is within acceptable ranges for complex automotive marketplace queries. AutoTrader response time data was unavailable due to the complete service unavailability during testing, preventing meaningful response latency comparison.

Incidents & Downtime

AutoTrader No incidents Kelley Blue B… No incidents Incident = 2+ consecutive failed checks · 7-day window

Both providers reported zero recorded incidents and zero total downtime minutes in their logged incident data, creating a significant discrepancy with the observed 0% uptime for AutoTrader. This suggests either incomplete incident logging on AutoTrader's systems or that the outage occurred at a network layer not captured by standard incident tracking. KBB's zero-incident record aligns with its measured 99.8% uptime.

Historical Context
Automotive marketplace platforms typically achieve 99.5%+ uptime due to the mission-critical nature of inventory and pricing data for dealer networks. Extended availability windows are industry standard, making AutoTrader's week-long 0% uptime status exceptional and indicative of an unusual event.

Which Should You Choose?

For production automotive marketplace operations, KBB demonstrates reliable service delivery at 99.8% uptime. AutoTrader should be avoided for this monitoring period until service restoration is confirmed. Customers relying on either platform should implement fallback strategies and monitor Uptrue for real-time status updates.

About This Data
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

Frequently Asked Questions

Which provider is more reliable based on this week's data?
KBB is significantly more reliable, with 99.8% uptime compared to AutoTrader's 0% uptime during the week of April 20, 2026. This data comes from Uptrue's independent monitoring across both services.
How often does AutoTrader go down?
During the monitored week, AutoTrader was completely unavailable for the entire period (0% uptime), suggesting either a sustained outage or fundamental connectivity issue. Historical frequency cannot be determined from a single week of data; longer-term monitoring is needed to assess typical downtime patterns.
How does Uptrue collect this reliability data?
Uptrue independently monitors both AutoTrader and KBB through continuous uptime checks, response time measurements, and incident tracking. All data presented in this report comes from Uptrue's automated monitoring infrastructure, not from self-reported metrics by the providers themselves.
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