What a honor to be included in latest @speedcurve.com newsletter by @tammyeverts.com! 😍
www.speedcurve.com/newsletter/6...
www.speedcurve.com/newsletter/6...
SpeedCurve | • NEW! How fast is the web, Lighthouse score hacking & making claude.ai 3x faster
Get great performance content – no filler! – delivered to your inbox every month.
www.speedcurve.com
October 21, 2026 at 7:22 PM
What a honor to be included in latest @speedcurve.com newsletter by @tammyeverts.com! 😍
www.speedcurve.com/newsletter/6...
www.speedcurve.com/newsletter/6...
Why green Web Vitals aren't enough
Google's metrics are only the starting point.
— A fast website is "invisible"
— Delays ruin both flow and conversions
Read an excellent business and philosophical article by Tammy Everts here 👇🏻
www.speedcurve.com/blog/fast/
Google's metrics are only the starting point.
— A fast website is "invisible"
— Delays ruin both flow and conversions
Read an excellent business and philosophical article by Tammy Everts here 👇🏻
www.speedcurve.com/blog/fast/
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
Always remember: We're in the business of creating experiences for other humans.
www.speedcurve.com
October 15, 2026 at 11:03 AM
Why green Web Vitals aren't enough
Google's metrics are only the starting point.
— A fast website is "invisible"
— Delays ruin both flow and conversions
Read an excellent business and philosophical article by Tammy Everts here 👇🏻
www.speedcurve.com/blog/fast/
Google's metrics are only the starting point.
— A fast website is "invisible"
— Delays ruin both flow and conversions
Read an excellent business and philosophical article by Tammy Everts here 👇🏻
www.speedcurve.com/blog/fast/
@tammyeverts.com and @csswizardry.com have both written a lot about this, so I don't feel like I need to write another blog post. Read theirs! And set up some alerts in your synthetic monitoring :)
www.speedcurve.com/blog/perform...
csswizardry.com/2020/01/perf...
www.speedcurve.com/blog/perform...
csswizardry.com/2020/01/perf...
SpeedCurve | A Complete Guide to Web Performance Budgets
If you're not already using performance budgets to prevent regressions, you should be! Here's how to get started.
www.speedcurve.com
October 9, 2026 at 6:01 PM
@tammyeverts.com and @csswizardry.com have both written a lot about this, so I don't feel like I need to write another blog post. Read theirs! And set up some alerts in your synthetic monitoring :)
www.speedcurve.com/blog/perform...
csswizardry.com/2020/01/perf...
www.speedcurve.com/blog/perform...
csswizardry.com/2020/01/perf...
lux.js mis-forwarded PerformanceObserver options, causing Event Timing to use a default 104 ms threshold and potentially skewing INP and attribution in SpeedCurve RUM.
Save What Matters
Curate Feeds | Make Collections | Customize Email Briefs
briefly.co
September 30, 2026 at 8:45 AM
lux.js mis-forwarded PerformanceObserver options, causing Event Timing to use a default 104 ms threshold and potentially skewing INP and attribution in SpeedCurve RUM.
lux.js mis-forwarded PerformanceObserver options, causing Event Timing to use a default 104 ms threshold and potentially skewing INP and attribution in SpeedCurve RUM.
Save What Matters
Curate Feeds | Make Collections | Customize Email Briefs
briefly.co
September 30, 2026 at 8:44 AM
lux.js mis-forwarded PerformanceObserver options, causing Event Timing to use a default 104 ms threshold and potentially skewing INP and attribution in SpeedCurve RUM.
Nice addition for anyone using SpeedCurve RUM or LUX.js!
If you use @speedcurve.com—and you should—then LUX Sidecar is for you! csswizardry.com/2026/08/intr...
Introducing LUX Sidecar: Your SpeedCurve Companion – CSS Wizardry
LUX Sidecar is a small SpeedCurve RUM plugin that adds browser and navigation context to your real-user performance data.
csswizardry.com
August 21, 2026 at 3:18 AM
Nice addition for anyone using SpeedCurve RUM or LUX.js!
If you use @speedcurve.com—and you should—then LUX Sidecar is for you! csswizardry.com/2026/08/intr...
Introducing LUX Sidecar: Your SpeedCurve Companion – CSS Wizardry
LUX Sidecar is a small SpeedCurve RUM plugin that adds browser and navigation context to your real-user performance data.
csswizardry.com
August 20, 2026 at 7:26 PM
If you use @speedcurve.com—and you should—then LUX Sidecar is for you! csswizardry.com/2026/08/intr...
“Images are an important part of providing a rich, user-friendly experience online. It’s critical to optimize how they’re loaded and how much they weigh…” #webperf
Best Practices for Optimizing Images | SpeedCurve
Images are an important part of providing a rich, user-friendly experience online. It’s critical to optimize how they’re loaded and how much they weigh, making sure your beautiful images aren't hurtin...
www.speedcurve.com
January 18, 2025 at 4:02 PM
“Images are an important part of providing a rich, user-friendly experience online. It’s critical to optimize how they’re loaded and how much they weigh…” #webperf
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
Always remember: We're in the business of creating experiences for other humans.
www.speedcurve.com
March 15, 2026 at 10:11 AM
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
A company should exist to enrich and support us as individuals. Not for us to enrich it. It’s nothing without its fabulous people.
Eight years at SpeedCurve! What the WHAT?!?
On the eve of my eighth (!!!) anniversary as a SpeedCurver, I wrote up this ode to the biggest little company I've ever had the privilege to be part of.
www.linkedin.com
May 15, 2025 at 8:32 PM
A company should exist to enrich and support us as individuals. Not for us to enrich it. It’s nothing without its fabulous people.
We done this on SpeedCurve for ages. Works great. Unicode ranges don’t get enough attention. Super powerful feature.
November 25, 2024 at 5:46 PM
We done this on SpeedCurve for ages. Works great. Unicode ranges don’t get enough attention. Super powerful feature.
Oh my, this is so obvious in hindsight
www.speedcurve.com/blog/web-per...
www.speedcurve.com/blog/web-per...
SpeedCurve | Why you need to know your site's performance plateau (and how to find it)
Have you ever wondered why your site got faster, but your business and user engagement metrics didn't change? Here's why.
www.speedcurve.com
September 21, 2025 at 1:02 AM
Oh my, this is so obvious in hindsight
www.speedcurve.com/blog/web-per...
www.speedcurve.com/blog/web-per...
SpeedCurve | Downtime vs slowtime: Which costs you more?
SpeedCurve | Downtime vs slowtime: Which costs you more?
Page slowdowns can cause as much damage as downtime, hurting revenue, brand health, and permanent abandonment rate.
www.speedcurve.com
May 22, 2025 at 9:42 AM
SpeedCurve | Downtime vs slowtime: Which costs you more?
I am struggling to get replies to my emails with @SpeedCurve, is everything going ok over there?
January 15, 2020 at 8:09 AM
I am struggling to get replies to my emails with @SpeedCurve, is everything going ok over there?
I remain utterly baffled by the use of third party trackers by HMG
GOVDOTUK's "We do not allow Google or SpeedCurve to use or share this data for their own purposes." feels increasingly like a hostage to fortune
GOVDOTUK's "We do not allow Google or SpeedCurve to use or share this data for their own purposes." feels increasingly like a hostage to fortune
Let this be a warning to all companies (lookin' at you, healthcare) that trackers can be justified in any part of the user experience.
arstechnica.com/tech...
arstechnica.com/tech...
Jury finds Meta broke wiretap law by collecting data from period-tracker app
Lawyers hail jury’s “clear message” to Big Tech; Meta will fight verdict.
arstechnica.com
August 5, 2025 at 6:30 PM
I remain utterly baffled by the use of third party trackers by HMG
GOVDOTUK's "We do not allow Google or SpeedCurve to use or share this data for their own purposes." feels increasingly like a hostage to fortune
GOVDOTUK's "We do not allow Google or SpeedCurve to use or share this data for their own purposes." feels increasingly like a hostage to fortune
Happy to announce the @speedcurve.com #perfhero for the month of June, Harry Roberts! @csswizardry.com I had a catch up with Harry and talked all things webperf. Have a listen! www.speedcurve.com/blog/web-per...
SpeedCurve | Performance Hero: Harry Roberts
Harry makes huge brands fast, and then generously shares his insights with the community. Thank you, Harry!
www.speedcurve.com
June 30, 2025 at 2:51 PM
Happy to announce the @speedcurve.com #perfhero for the month of June, Harry Roberts! @csswizardry.com I had a catch up with Harry and talked all things webperf. Have a listen! www.speedcurve.com/blog/web-per...
We are thrilled to recognize @infrequently.org as this month's @speedcurve.com Performance Hero. Alex is honest, direct and extremely passionate in his fight for keeping the web platform alive and accessible for all. #perfhero
www.speedcurve.com/blog/perform...
www.speedcurve.com/blog/perform...
SpeedCurve | Performance Hero: Alex Russell
Our newest performance hero is passionate, provocative, and unapologetically honest. Join us in celebrating Alex Russell!
www.speedcurve.com
April 9, 2025 at 4:24 PM
We are thrilled to recognize @infrequently.org as this month's @speedcurve.com Performance Hero. Alex is honest, direct and extremely passionate in his fight for keeping the web platform alive and accessible for all. #perfhero
www.speedcurve.com/blog/perform...
www.speedcurve.com/blog/perform...
🚨 New EMA Impact Brief: Embrace + @speedcurve.com is a big step forward for modern #observability.
Together they deliver deeper user context, unified mobile + web + synthetic visibility, and an OTel-first foundation built for AI-ready reliability.
Read more ➔ ow.ly/tsXY50XxcpZ
Together they deliver deeper user context, unified mobile + web + synthetic visibility, and an OTel-first foundation built for AI-ready reliability.
Read more ➔ ow.ly/tsXY50XxcpZ
Impact Brief: Embrace Acquires SpeedCurve, Advancing User-Focused Observability with Deep Web Performance Insight
EMA explores how Embrace and SpeedCurve’s combined strengths create a comprehensive experience layer across mobile, web, and backend systems.
ow.ly
November 24, 2025 at 10:12 PM
🚨 New EMA Impact Brief: Embrace + @speedcurve.com is a big step forward for modern #observability.
Together they deliver deeper user context, unified mobile + web + synthetic visibility, and an OTel-first foundation built for AI-ready reliability.
Read more ➔ ow.ly/tsXY50XxcpZ
Together they deliver deeper user context, unified mobile + web + synthetic visibility, and an OTel-first foundation built for AI-ready reliability.
Read more ➔ ow.ly/tsXY50XxcpZ
🔥 Fireside chat: The future of user-focused #observability
With the Embrace + @speedcurve.com acquisition now live, hear what’s ahead from Andrew Tunall, Mark Zeman, and Cliff Crocker.
📅 Dec 9 at 11 AM PST
📍 Save your seat ➔ ow.ly/M6QQ50XvcB2
With the Embrace + @speedcurve.com acquisition now live, hear what’s ahead from Andrew Tunall, Mark Zeman, and Cliff Crocker.
📅 Dec 9 at 11 AM PST
📍 Save your seat ➔ ow.ly/M6QQ50XvcB2
Fireside chat: The future of user-focused observability with Embrace and SpeedCurve
In this fireside chat, learn about Embrace and newly acquired SpeedCurve's shared vision to connect technical performance in apps and sites to how users actually experience them.
ow.ly
November 21, 2025 at 4:50 PM
🔥 Fireside chat: The future of user-focused #observability
With the Embrace + @speedcurve.com acquisition now live, hear what’s ahead from Andrew Tunall, Mark Zeman, and Cliff Crocker.
📅 Dec 9 at 11 AM PST
📍 Save your seat ➔ ow.ly/M6QQ50XvcB2
With the Embrace + @speedcurve.com acquisition now live, hear what’s ahead from Andrew Tunall, Mark Zeman, and Cliff Crocker.
📅 Dec 9 at 11 AM PST
📍 Save your seat ➔ ow.ly/M6QQ50XvcB2
🎉 Big news! We’re thrilled to welcome @SpeedCurve to Embrace 💛
Together, we’re uniting deep web + mobile expertise into one OpenTelemetry-based, user-focused observability platform.
Learn more: ow.ly/8li350Xqim4
Together, we’re uniting deep web + mobile expertise into one OpenTelemetry-based, user-focused observability platform.
Learn more: ow.ly/8li350Xqim4
November 12, 2025 at 2:59 PM
🎉 Big news! We’re thrilled to welcome @SpeedCurve to Embrace 💛
Together, we’re uniting deep web + mobile expertise into one OpenTelemetry-based, user-focused observability platform.
Learn more: ow.ly/8li350Xqim4
Together, we’re uniting deep web + mobile expertise into one OpenTelemetry-based, user-focused observability platform.
Learn more: ow.ly/8li350Xqim4
Optimizing Single-Page Applications (SPAs)
Single-page applications (SPAs) have unique page speed optimization challenges. Let’s go through some common web performance issues with SPAs, and how to optimize them. Source: Optimizing Single-Page Applications (SPAs) | SpeedCurve
Single-page applications (SPAs) have unique page speed optimization challenges. Let’s go through some common web performance issues with SPAs, and how to optimize them. Source: Optimizing Single-Page Applications (SPAs) | SpeedCurve
Optimizing Single-Page Applications (SPAs)
Single-page applications (SPAs) have unique page speed optimization challenges. Let’s go through some common web performance issues with SPAs, and how to optimize them. Source: Optimizing Single-Page Applications (SPAs) | SpeedCurve
conffab.com
March 20, 2025 at 10:02 PM
Optimizing Single-Page Applications (SPAs)
Single-page applications (SPAs) have unique page speed optimization challenges. Let’s go through some common web performance issues with SPAs, and how to optimize them. Source: Optimizing Single-Page Applications (SPAs) | SpeedCurve
Single-page applications (SPAs) have unique page speed optimization challenges. Let’s go through some common web performance issues with SPAs, and how to optimize them. Source: Optimizing Single-Page Applications (SPAs) | SpeedCurve
Nice to see @theguardian.com on which I worked doing decently well in that area: app.speedcurve.com/benchmarks/e...
Page Speed Benchmarks | SpeedCurve
We rank industry-leading websites based on how fast their pages appear to load, from a user’s perspective.
app.speedcurve.com
April 8, 2025 at 5:48 PM
Nice to see @theguardian.com on which I worked doing decently well in that area: app.speedcurve.com/benchmarks/e...
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
Always remember: We're in the business of creating experiences for other humans.
buff.ly
July 14, 2026 at 9:15 AM
SpeedCurve | How fast is fast enough? Rethinking web performance in pragmagical terms
ICYMI, here's a wrap-up of exciting #webperf and #ux highlights from 2025!
⭐ Broad browser support for LCP and INP (W👀T!)
⭐ New metrics & visuals for measuring user happiness
⭐ Deeper metrics for JS diagnostics
⭐ Better budgets = easier regression-fighting
www.speedcurve.com/blog/2025-we...
⭐ Broad browser support for LCP and INP (W👀T!)
⭐ New metrics & visuals for measuring user happiness
⭐ Deeper metrics for JS diagnostics
⭐ Better budgets = easier regression-fighting
www.speedcurve.com/blog/2025-we...
SpeedCurve | 2025 was a big year! Here are some highlights...
From broad browser support for key metrics to nuanced metrics for diagnosing issues, 2025 has been filled with wins.
www.speedcurve.com
January 12, 2026 at 7:15 PM
ICYMI, here's a wrap-up of exciting #webperf and #ux highlights from 2025!
⭐ Broad browser support for LCP and INP (W👀T!)
⭐ New metrics & visuals for measuring user happiness
⭐ Deeper metrics for JS diagnostics
⭐ Better budgets = easier regression-fighting
www.speedcurve.com/blog/2025-we...
⭐ Broad browser support for LCP and INP (W👀T!)
⭐ New metrics & visuals for measuring user happiness
⭐ Deeper metrics for JS diagnostics
⭐ Better budgets = easier regression-fighting
www.speedcurve.com/blog/2025-we...