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Cache-Control for Civilians

CSS Wizardry

To this end, having a solid caching strategy can make all the difference for your visitors. ?? How is your knowledge of caching and Cache-Control headers? That being said, more and more often in my work I see lots of opportunities being left on the table through unconsidered or even completely overlooked caching practices.

Cache 264
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How to use Server Timing to get backend transparency from your CDN

Speed Curve

Server-timing headers are a key tool in understanding what's happening within that black box of Time to First Byte (TTFB). Cue server-timing headers Historically, when looking at page speed, we've had the tendency to ignore TTFB when trying to optimize the user experience. I mean, why wouldn't we?

Servers 57
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Radically speed up your code by fixing slow or frequent garbage collection

Dynatrace

To give you the definitive root cause of these issues, we’re happy to announce our continuous memory profiler , which allows you to easily see the actual method and execution tree that’s responsible for creating the objects that are responsible for slow or frequent garbage collection. . Speed up application code itself.

Speed 166
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Mobile Page Speed Testing

MachMetrics

In fact, failing to run a mobile page speed test is the number 1 speed testing mistake we see our users make! If you’re unsure of how your website performs on a mobile device (or even got a poor result on a speed audit), stick with us. All of these things can be achieved with a faster mobile speed. Of course not.

Speed 67
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Best Free DNS Hosting Providers

KeyCDN

This query is performed by a Domain Name Server (DNS server) or servers nearby that have been assigned responsibility for that hostname. You can think of a DNS server as a phone book for the internet. A DNS server maintains a directory of domain names and translates them to IPs. So DNS services definitely go down!

Cache 134
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What Web Designers Can Do To Speed Up Mobile Websites

Smashing Magazine

What Web Designers Can Do To Speed Up Mobile Websites. What Web Designers Can Do To Speed Up Mobile Websites. I recently wrote a blog post for a web designer client about page speed and why it matters. What I didn’t know before writing it was that her agency was struggling to optimize their mobile websites for speed.

Website 110
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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. What if another file on the critical path had dropped out of cache and needed fetching from the network? Problems When Measuring Performance.