Tags: speed



On HTTPS and Hard Questions - TimKadlec.com

A great post by Tim following on from the post by Eric I linked to last week.

Is a secure site you can’t access better than an insecure one you can?

He rightly points out that security without performance is exlusionary.

…we’ve made a move to increase the security of the web by doing everything we can to get everything running over HTTPS. It’s undeniably a vital move to make. However this combination—poor performance but good security—now ends up making the web inaccessible to many.

Security. Performance. Accessibility. All three matter.

Stop building for San Francisco

Overwhelmingly, our software is built by well-paid teams with huge monitors and incredibly fast computers running on a high-bandwidth internet connection. We run MacBook Pros, we have cinema displays, we carry iPhones.

That’s not what the rest of the world looks like.

Securing Web Sites Made Them Less Accessible – Eric’s Archived Thoughts

This is a heartbreaking observation by Eric. He’s not anti-HTTPS by any stretch, but he is pointing out that caching servers become a thing of the past on a more secure web.

Can we do anything? For users of up-to-date browsers, yes: service workers create a “good” man in the middle that sidesteps the HTTPS problem, so far as I understand. So if you’re serving content over HTTPS, creating a service worker should be one of your top priorities right now, even if it’s just to do straightforward local caching and nothing fancier.

The Web is Made of Edge Cases by Taylor Hunt on CodePen

Oh, this is magnificent! A rallying call for everyone designing and developing on the web to avoid making any assumptions about the people we’re building for:

People will use your site how they want, and according to their means. That is wonderful, and why the Web was built.

I would even say that the % of people viewing your site the way you do rapidly approaches zilch.

Dynamic resources using the Network Information API and service workers

Smart thinking—similar to this post from last year—about using the navigator.connection API from a service worker to serve up bandwidth-appropriate images.

This is giving me some ideas for my own site.

The Cost Of JavaScript In 2018 – Addy Osmani – Medium

Addy takes a deep, deep dive into JavaScript performance on mobile, and publishes his findings on Ev’s blog, including this cra-yay-zy suggestion:

Maybe server-side-rendered HTML would actually be faster. Consider limiting the use of client-side frameworks to pages that absolutely require them.

The Bullshit Web — Pixel Envy

There is a cumulative effect of bullshit; its depth and breadth is especially profound. In isolation, the few seconds that it takes to load some extra piece of surveillance JavaScript isn’t much. Neither is the time it takes for a user to hide an email subscription box, or pause an autoplaying video. But these actions compound on a single webpage, and then again across multiple websites, and those seemingly-small time increments become a swirling miasma of frustration and pain.

I agree completely. And AMP is not the answer:

Given the assumption that any additional bandwidth offered to web developers will immediately be consumed, there seems to be just one possible solution, which is to reduce the amount of bytes that are transmitted. For some bizarre reason, this hasn’t happened on the main web, because it somehow makes more sense to create an exact copy of every page on their site that is expressly designed for speed. Welcome back, WAP — except, for some reason, this mobile-centric copy is entirely dependent on yet more bytes. This is the dumbfoundingly dumb premise of AMP.

Prioritizing the Long-Tail of Performance - TimKadlec.com

Focusing on the median or average is the equivalent of walking around with a pair of blinders on. We’re limiting our perspective and, in the process, missing out on so much crucial detail. By definition, when we make improving the median or average our goal, we are focusing on optimizing for only about half of our sessions.

Tim does the numbers…

By honing in on the 90th—or 95th or similar—we ensure those weaknesses don’t get ignored. Our goal is to optimize the performance of our site for the majority of our users—not just a small subset of them.

Fixing these webs - daverupert.com

I’m a fan of fast websites. Your website needs to be fast. Our collective excuses, hand-wringing, and inability to come to terms with the problem-set (There is too much script) and solutions (Use less script) of modern web development is getting tired.

I agree with every word of this.

Sadly, I think the one company with a browser that has marketshare dominance and could exert the kind of pressure required to stop ad tracking and surveillance capitalism is not incentivized to do so.

So the problem is approached from the other end. Blame is piled on authors for slow first-party code. We’re told to use certain mobile publishing frameworks that syndicate to proprietary CDNs to appease the gods of luck and fortune.

The Critical Request - Speaker Deck

There are some handy performance tips from Ben in this slide deck.

In this talk we’ll study how browsers determine which requests should be made, in what order, and what prevents the browser from rendering content quickly.

Fostering a Web Performance Culture - José M. Pérez

Six steps to kickstart a web performance culture:

  1. Your dev environment is not your user’s environment
  2. It’s better to learn the fundamentals than the library
  3. Get the time to experiment and validate
  4. Educate your colleagues
  5. Share and celebrate success (and failure) stories
  6. Make performance part of your workflow

Identifying, Auditing, and Discussing Third Parties – CSS Wizardry

Harry describes the process he uses for auditing the effects of third-party scripts. He uses the excellent Request Map which was mentioned multiple times at the Delta V conference.

The focus here is on performance, but these tools are equally useful for shining a light on just how bad the situation is with online surveillance and tracking.

The Fast and Slow of Design

Prompted by his recent talk at Smashing Conference, Mark explains why he’s all about the pace layers when it comes to design systems. It’s good stuff, and ties in nicely with my recent (pace layers obsessed) talk at An Event Apart.

Structure for pace. Move at the appropriate speed.

The three Rs of web performance

  1. Reduce
  2. Reuse
  3. Restructure

The slides from Matthew’s talk on the performance overhauls he did on FixMyStreet.com and TrainTimes.org.uk.

How Fast Is Amp Really? - TimKadlec.com

An excellent, thorough, even-handed analysis of AMP’s performance from Tim. The AMP format doesn’t make that much of a difference, the AMP cache does speed things up (as would any CDN), but it’s the pre-rendering that really delivers the performance boost …as long as you give up your URLs.

But right now, the incentives being placed on AMP content seem to be accomplishing exactly what you would think: they’re incentivizing AMP, not performance.

It’s Dangerous to Go Stallone. Take Glyphhanger | Filament Group, Inc., Boston, MA

You’ll need to be comfortable with using the command line, but this is a very useful font subsetting tool from those clever folks at Filament Group.

Standardizing lessons learned from AMP – Accelerated Mobile Pages Project

This is very good news indeed—Google are going to allow non-AMP pages to get the same prioritised treatment as AMP pages …if they comply with the kind of performance criteria that Tim outlined.

It’ll take time to get there, but I’m so, so glad to see that Google aren’t going to try to force everyone to use their own proprietary format.

We are taking what we learned from AMP, and are working on web standards that will allow instant loading for non-AMP web content. We hope this work will also unlock AMP-like embeddability that powers Google Search features like the Top Stories carousel.

I just hope that this alternate route to the carousel won’t get lumped under the banner of “AMP”—that term has been pretty much poisoned at this point.

Winning on Mobile

This looks like a handy tool for doing some quick’n’dirty competitor analysis when it comes to performance: create a scoreboard of sites to rank by speed (and calculate the potential revenue impact).

Many factors contribute to an engaging mobile experience. And speed is chief among them. Most people will abandon a mobile site visit if the page takes more than a few seconds to load. Use our Speed Scorecard to see how your site stacks up to the competition.

Moving Slowly and Fixing Things / Paul Robert Lloyd

Although design gets conflated with creation, its the act of improving what already exists — organising a room, editing a text, refining an interface, refactoring a codebase — that I enjoy the most.

AMP: the missing controversy – Ferdy Christant

AMP pages aren’t fast because of the AMP format. AMP pages are fast when you visit one via Google search …because of Google’s monopoly on preloading:

Technically, a clever trick. It’s hard to argue with that. Yet I consider it cheating and anti competitive behavior.

Preloading is exclusive to AMP. Google does not preload non-AMP pages. If Google would have a genuine interest in speeding up the whole web on mobile, it could simply preload resources of non-AMP pages as well. Not doing this is a strong hint that another agenda is at work, to say the least.