American Express and IG maintained strong availability during the week of 20 April 2026, with American Express achieving perfect uptime and IG reaching 99.8%. However, significant differences in response performance emerged, with American Express responding 6x faster than IG. This analysis draws on independent monitoring data from Uptrue's infrastructure.
- American Express maintained 100% uptime versus IG's 99.8% during the monitored period
- American Express averaged 90ms response time; IG averaged 555ms—a 465ms performance gap
- Neither provider experienced recorded incidents or downtime in the week of 20 April 2026
- American Express demonstrated superior reliability across both availability and response speed metrics
Uptime This Week
American Express delivered flawless uptime at 100% throughout the monitoring period, while IG maintained 99.8% availability. This 0.2-percentage-point difference represents minimal practical impact for most use cases, though the gap reflects IG's exposure to brief unavailability events. Both providers exceeded typical SLA benchmarks for financial services.
Response Time
American Express responded to requests in an average of 90ms, substantially outperforming IG's 555ms average. Response time directly impacts user experience and transaction throughput; American Express's performance provides a measurable advantage in real-world conditions. The 6:1 speed ratio represents a material difference in perceived responsiveness.
Incidents & Downtime
Both providers reported zero incidents and zero minutes of downtime during the monitored week. This absence of recorded incidents across two major financial platforms suggests stable infrastructure conditions during the period. However, incident frequency alone does not account for response time degradation or latency spikes.
Which Should You Choose?
Choose American Express if response speed and guaranteed performance matter for your use case; its 90ms baseline and perfect uptime record provide predictability. IG remains viable for non-latency-sensitive operations, though the 555ms response time warrants testing against your specific performance thresholds before commitment.
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