# The Web Performance Impact Of Lossy Network Conditions

DevFeed: [The Web Performance Impact Of Lossy Network Conditions](<https://devfeed.tech/articles/the-web-performance-impact-of-lossy-network-conditions-27974.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2019-08-08-thewebperformanceimpactoflossynetworkcon/>)

Author: Tobias Baldauf

Published: 2019-08-08T00:00:00Z

Content type: article

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [Web](<https://devfeed.tech/topics/web.md>), [Network](<https://devfeed.tech/topics/network.md>), [Latency](<https://devfeed.tech/topics/latency.md>), [real user monitoring](<https://devfeed.tech/topics/real-user-monitoring.md>), [cloud-infrastructure](<https://devfeed.tech/topics/cloud-infrastructure.md>), [Monitoring](<https://devfeed.tech/topics/monitoring.md>), [API](<https://devfeed.tech/topics/api.md>), [User experience (UX)](<https://devfeed.tech/topics/ux.md>), [Testing](<https://devfeed.tech/topics/testing.md>)

Tags: [cdn](<https://devfeed.tech/tags/cdn.md>), [dns](<https://devfeed.tech/tags/dns.md>), [frontend](<https://devfeed.tech/tags/frontend.md>), [metrics](<https://devfeed.tech/tags/metrics.md>), [monitor](<https://devfeed.tech/tags/monitor.md>), [monitoring](<https://devfeed.tech/tags/monitoring.md>), [network](<https://devfeed.tech/tags/network.md>), [performance](<https://devfeed.tech/tags/performance.md>), [real-user-monitoring](<https://devfeed.tech/tags/real-user-monitoring.md>), [synthetic](<https://devfeed.tech/tags/synthetic.md>), [test-coverage](<https://devfeed.tech/tags/test-coverage.md>), [testing](<https://devfeed.tech/tags/testing.md>), [user-experience](<https://devfeed.tech/tags/user-experience.md>), [web-performance](<https://devfeed.tech/tags/web-performance.md>)

## AI overview

This article explains how packet loss on middleware routers between a CDN and origin server can cause intermittent outages and slower web performance. It describes using MTR, Synthetic Monitoring, and Real User Monitoring to identify first-mile network problems and improve testing coverage.

## Source excerpt

tl;dr: continuously monitor your CDN and origin servers on layer 3 with tools like MTR. Layer 3 issues on external middleware can have ...