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Amex vs Mastercard Uptime — Week of 20 April 2026

This report compares the reliability of American Express and Mastercard based on independent monitoring by Uptrue during the week of 20 April 2026. American Express maintained 100% uptime with a 90ms

20 April 2026·Uptrue Team

🏦 Banking & Finance Weekly Comparison

This report compares the reliability of American Express and Mastercard based on independent monitoring by Uptrue during the week of 20 April 2026. American Express maintained 100% uptime with a 90ms average response time, while Mastercard recorded 0% uptime despite reporting zero incidents.

TL;DR

American Express achieved 100% uptime with zero incidents during the monitoring period
Mastercard reported 0% uptime, indicating a critical accessibility issue despite zero logged incidents
American Express maintained a 90ms average response time when available
Both providers reported zero minutes of downtime in incident logs, suggesting a discrepancy between measurement methodology and incident tracking

Uptime This Week

American Express demonstrated 100% availability throughout the monitoring week. Mastercard's 0% uptime indicates the service was not accessible during the measurement period. This stark contrast suggests either a persistent outage at Mastercard or a fundamental connectivity issue preventing monitoring from reaching the service.

Response Time

American Express responded with a 90ms average latency when requests succeeded. Response time data was unavailable for Mastercard, consistent with the complete unavailability recorded during this period.

Incidents & Downtime

Both providers reported zero incidents and zero minutes of downtime in their incident tracking systems. This discrepancy with Mastercard's measured 0% uptime suggests a gap between customer-facing availability and internal incident reporting—the service was unreachable from Uptrue's monitoring endpoints despite no recorded incidents.

Historical Context

Banking and financial services platforms typically maintain 99.9%+ uptime due to regulatory requirements and customer expectations. Complete unavailability is rare and typically triggers immediate escalation protocols.

Which Should You Choose?

American Express is the clear choice for this monitoring period based on measured reliability. For critical financial integrations, Mastercard's 0% uptime warrants immediate investigation—contact their support team to determine whether monitoring access was blocked, whether a regional outage occurred, or whether incident classification differs from measured availability.

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 data?

American Express is significantly more reliable based on Uptrue's independent monitoring. It achieved 100% uptime with zero incidents, while Mastercard recorded 0% uptime during the same week.

How often does Mastercard experience downtime?

Based on this one-week sample, Mastercard was completely unavailable (0% uptime) to Uptrue's monitoring infrastructure. This is atypical and suggests either a widespread outage or an access issue. A longer monitoring period is needed to establish normal incident frequency.

How does Uptrue collect this data?

Uptrue independently monitors the public endpoints of both providers by making regular HTTP requests and measuring uptime, response time, and incident occurrence. All data presented comes from Uptrue's own monitoring infrastructure, not from provider-reported metrics or dashboards.