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Performance Game Changer: Browser Back/Forward Cache

Smashing Magazine

WebPageTest is one of the few web performance testing tools that actually tests a reload of the page using a primed HTTP Cache — most of the other tools just flag if your HTTP resources are not explicitly set to be cached. Back/Forward Cache Testing Tool. Or perhaps A/B test this?

Cache 93
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Search Engine Optimization Checklist (PDF)

Smashing Magazine

HTTP/2 Test Tool by Geekflare. Testing And Monitoring. Run your site through speed testing tools like PageSpeed Insights and GTmetrix. Bulk Mobile Friendly Test by Experte. TTFB (Time to First Byte) Test by Geekflare. There are numerous free tools available for tracking search analytics.

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The State Of Mobile And Why Mobile Web Testing Matters

Smashing Magazine

After all, when we look at our analytics, we will hardly find any customers browsing our sites or apps with a mid-range device on a flaky 3G connection. The earlier you invest in accessibility testing, the more you’ll save down the road on expensive consultancy, expensive third-party services, or expensive lawyers. Mobile Web Testing.

Mobile 135
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An In-Depth Guide To Measuring Core Web Vitals

Smashing Magazine

Total Blocking Time (TBT) is a good proxy for FID when using a testing tool without any direct user interaction, but also keep an eye on Time to Interactive (TTI) when looking at FID. for CLS), Google Analytics can // compute a total by grouping on this ID (note: requires `eventLabel` to // be a dimension in your report).

Google 141
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Email Testing Flow As It Should Be

Smashing Magazine

Spell checkers and content testing tools are helpful for emails as well. Preheader Testing Tool also provides similar functionality. How To Test Email Deliverability. It provides inbox placement, reputation check, DMARC analytics, bounce analytics, automatic tests, monitoring and alerts, and template editor.

Testing 110
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Front-End Performance Checklist 2021

Smashing Magazine

This guide has been kindly supported by our friends at LogRocket , a service that combines frontend performance monitoring , session replay, and product analytics to help you build better customer experiences. Study common complaints coming into customer service and sales team, study analytics for high bounce rates and conversion drops.

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Front-End Performance Checklist 2020 [PDF, Apple Pages, MS Word]

Smashing Magazine

Study common complaints coming into customer service and sales team, study analytics for high bounce rates and conversion drops. Run performance experiments and measure outcomes — both on mobile and on desktop (for example, with Google Analytics ). You can then mimic the 90th percentile’s experience for testing.