Remove Metrics Remove Network Remove Speed
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Site-Speed Topography

CSS Wizardry

When first working on a new site-speed engagement, you need to work out quickly where the slowdowns, blindspots, and inefficiencies lie. Any time you run a test with WebPageTest, you’ll get this table of different milestones and metrics. Higher variance means a less stable metric across pages. Visualising the Data.

Speed 328
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New SNMP platform extensions provide observability at scale for network devices

Dynatrace

Quick and easy network infrastructure monitoring. Begin network monitoring by simply deploying an extension with just a few clicks. The topology model for network devices covers simple to complex use cases from visualizing the interfaces of a router to mapping an F5 Big-IP LTM load balancer. Start monitoring in minutes.

Network 223
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Accelerate resolution of network issues with AI-powered event reporting based on SNMP traps

Dynatrace

Monitoring modern IT infrastructure is difficult, sometimes impossible, without advanced network monitoring tools. While the market is saturated with many Network Administrator support solutions, Dynatrace can help you analyze the impact on your organization in an automated manner. Device-centric SNMP Trap overview.

Network 234
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Best practices and key metrics for improving mobile app performance

Dynatrace

Mobile applications (apps) are an increasingly important channel for reaching customers, but the distributed nature of mobile app platforms and delivery networks can cause performance problems that leave users frustrated, or worse, turning to competitors. Some of the most important KPIs are listed below. Performance optimization.

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In Defence of DOM­Content­Loaded

CSS Wizardry

I never thought I’d write an article in defence of DOMContentLoaded , but here it is… For many, many years now, performance engineers have been making a concerted effort to move away from technical metrics such as Load , and toward more user-facing, UX metrics such as Speed Index or Largest Contentful Paint. Or are they…?

Metrics 330
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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Compressing them over the network: Which compression algorithm, if any, will we use? Connection One thing we haven’t looked at is the impact of network speeds on these outcomes. Everything we’ve looked at so far has concerned itself with network performance. The former makes for a simpler build step, but is it faster? ?️

Cache 338
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Measure What You Impact, Not What You Influence

CSS Wizardry

As I see it, there are two main issues when it comes to measuring performance changes (note, not improvements , but changes) in the lab: Site-speed is nondeterministic 1. I can reload the exact same page under the exact same network conditions over and over, and I can guarantee I will not get the exact same, say, DOMContentLoaded each time.