Estela Franco
@guaca.bsky.social
Web Performance @ Shopify
Tired mom 👦👶
Passionate about Web Perf, Web Standards, TechSEO, & Rock Music.
Google Dev Expert in Web Technologies
#mujeresenseo
🌐 estelafranco.com
🐘 https://toot.cafe/@guaca
📍 Barcelona
Tired mom 👦👶
Passionate about Web Perf, Web Standards, TechSEO, & Rock Music.
Google Dev Expert in Web Technologies
#mujeresenseo
🌐 estelafranco.com
🐘 https://toot.cafe/@guaca
📍 Barcelona
Lo mejor de celebrar la llegada de un año nuevo es hacerlo siempre con #CachitosNochevieja 🥳🎆🥂
December 31, 2025 at 11:31 PM
Lo mejor de celebrar la llegada de un año nuevo es hacerlo siempre con #CachitosNochevieja 🥳🎆🥂
Happy New Year everyone (CET edition)!!!
December 31, 2025 at 11:28 PM
Happy New Year everyone (CET edition)!!!
Reposted by Estela Franco
Lots of great stuff in this year's Perf Planet Advent/December series:
calendar.perfplanet.com/2025/
calendar.perfplanet.com/2025/
December 28, 2025 at 3:39 AM
Lots of great stuff in this year's Perf Planet Advent/December series:
calendar.perfplanet.com/2025/
calendar.perfplanet.com/2025/
Just in time for the Christmas break! 😂
Google December 2025 Core Update Is Rolling Out - You Surprised? www.seroundtable.com/google-decem...
Google December 2025 Core Update Rolling Out
Google officially announced the rollout of the December 2025 core update on Thursday at around 12:20 pm ET. This core update is expected to take about 3 weeks to roll out. Google said this "is a regul...
www.seroundtable.com
December 11, 2025 at 7:42 PM
Just in time for the Christmas break! 😂
A few weeks ago, I was... "What an amazing opportunity! Let's go to Zurich for the last SCL of the year! I'll only be there for 36 hours, but YOLO!”
Also me when the alarm sounds at 4:30AM and my toddler didn't fall asleep until midnight: "Why am I doing this?"
Also me when the alarm sounds at 4:30AM and my toddler didn't fall asleep until midnight: "Why am I doing this?"
a baby with a sad look on his face
Alt: a baby with a sad look on his face
media.tenor.com
December 8, 2025 at 4:14 AM
A few weeks ago, I was... "What an amazing opportunity! Let's go to Zurich for the last SCL of the year! I'll only be there for 36 hours, but YOLO!”
Also me when the alarm sounds at 4:30AM and my toddler didn't fall asleep until midnight: "Why am I doing this?"
Also me when the alarm sounds at 4:30AM and my toddler didn't fall asleep until midnight: "Why am I doing this?"
Reposted by Estela Franco
Looking for web-themed t-shirts and accessories? I just launched a small store (mostly so I can wear my own designs 😄). But sharing is caring, so feel free to check it out! And if something catches your eye, don’t miss the 3×2 Black Friday offer!
planetaberilis.com
planetaberilis.com
Planeta Berilis - Developer T-Shirts & Tech Gear
Gear up with tees, hoodies, mugs and accessories from Planeta Berilis. Express your mastery of code, Web Vitals, and developer life with style!
planetaberilis.com
November 28, 2025 at 2:17 PM
Looking for web-themed t-shirts and accessories? I just launched a small store (mostly so I can wear my own designs 😄). But sharing is caring, so feel free to check it out! And if something catches your eye, don’t miss the 3×2 Black Friday offer!
planetaberilis.com
planetaberilis.com
Looking for web-themed t-shirts and accessories? I just launched a small store (mostly so I can wear my own designs 😄). But sharing is caring, so feel free to check it out! And if something catches your eye, don’t miss the 3×2 Black Friday offer!
planetaberilis.com
planetaberilis.com
Planeta Berilis - Developer T-Shirts & Tech Gear
Gear up with tees, hoodies, mugs and accessories from Planeta Berilis. Express your mastery of code, Web Vitals, and developer life with style!
planetaberilis.com
November 28, 2025 at 2:17 PM
Looking for web-themed t-shirts and accessories? I just launched a small store (mostly so I can wear my own designs 😄). But sharing is caring, so feel free to check it out! And if something catches your eye, don’t miss the 3×2 Black Friday offer!
planetaberilis.com
planetaberilis.com
Reposted by Estela Franco
What fun! Thanks @guaca.bsky.social and @sia.codes for putting this together, to everyone that joined live, and @mattzeunert.com for sharing the stage!
My deck is here:
docs.google.com/presentation...
And the video should be available soon at:
www.youtube.com/@Performance...
My deck is here:
docs.google.com/presentation...
And the video should be available soon at:
www.youtube.com/@Performance...
November 19, 2025 at 6:09 PM
What fun! Thanks @guaca.bsky.social and @sia.codes for putting this together, to everyone that joined live, and @mattzeunert.com for sharing the stage!
My deck is here:
docs.google.com/presentation...
And the video should be available soon at:
www.youtube.com/@Performance...
My deck is here:
docs.google.com/presentation...
And the video should be available soon at:
www.youtube.com/@Performance...
Reposted by Estela Franco
I'm speaking at the PerformanceObserver online meetup tonight!
Learn about performance testing, netlog data, credentialed requests, tight mode, HTTP priorities, and more!
performanceobserver.dev/events/episo...
Learn about performance testing, netlog data, credentialed requests, tight mode, HTTP priorities, and more!
performanceobserver.dev/events/episo...
Ep. 8: Reduce the JS Workload with NoLoJS and Synthetic WebPerf testing with Debugbear | PerformanceObserver
In this episode, Aaron T. Grogg will explain how to reduce JS Workload with No or Lo JS,. Then, Matt Zeunert walks us through Synthetic Web Performance testing with Debugbear.
performanceobserver.dev
November 19, 2025 at 12:21 PM
I'm speaking at the PerformanceObserver online meetup tonight!
Learn about performance testing, netlog data, credentialed requests, tight mode, HTTP priorities, and more!
performanceobserver.dev/events/episo...
Learn about performance testing, netlog data, credentialed requests, tight mode, HTTP priorities, and more!
performanceobserver.dev/events/episo...
On today’s lightning-fast trip, I’m rolling with my brand-new backpack.
Look closely and you’ll spot that the design is based on eleventy.config.js from 11ty/eleventy-base-blog by @11ty.dev
I know, I know! I basically own the coolest backpack on the planet 💅
Look closely and you’ll spot that the design is based on eleventy.config.js from 11ty/eleventy-base-blog by @11ty.dev
I know, I know! I basically own the coolest backpack on the planet 💅
November 15, 2025 at 12:41 PM
On today’s lightning-fast trip, I’m rolling with my brand-new backpack.
Look closely and you’ll spot that the design is based on eleventy.config.js from 11ty/eleventy-base-blog by @11ty.dev
I know, I know! I basically own the coolest backpack on the planet 💅
Look closely and you’ll spot that the design is based on eleventy.config.js from 11ty/eleventy-base-blog by @11ty.dev
I know, I know! I basically own the coolest backpack on the planet 💅
🚨 PerformanceObserver Episode 8 is next week on Nov 19 🚨
Come join us live for access to Q&A and general chat!
In this episode, @aarontgrogg.bsky.social will explain how to reduce JS Workload with No or Lo JS.
(🧵 1/2)
Come join us live for access to Q&A and general chat!
In this episode, @aarontgrogg.bsky.social will explain how to reduce JS Workload with No or Lo JS.
(🧵 1/2)
PerformanceObserver: A virtual web perf meetup
Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.
performanceobserver.dev
November 10, 2025 at 11:24 AM
🚨 PerformanceObserver Episode 8 is next week on Nov 19 🚨
Come join us live for access to Q&A and general chat!
In this episode, @aarontgrogg.bsky.social will explain how to reduce JS Workload with No or Lo JS.
(🧵 1/2)
Come join us live for access to Q&A and general chat!
In this episode, @aarontgrogg.bsky.social will explain how to reduce JS Workload with No or Lo JS.
(🧵 1/2)
Ya os corrijo yo el titular, @elpais.com: Muere James Watson, quien construyó su fama (y su Nobel) sobre el trabajo de Rosalind Franklin que nunca reconoció.
De nada.
De nada.
Muere James Watson, descubridor de la estructura del ADN, a los 97 años
social.elpais.com/5e4hc5
social.elpais.com/5e4hc5
Muere James Watson, descubridor de la estructura del ADN, a los 97 años
Se convirtió en uno de los científicos más celebrados de la ciencia del siglo XX al describir la famosa forma de doble hélice junto con Francis Crick
social.elpais.com
November 8, 2025 at 12:11 PM
Ya os corrijo yo el titular, @elpais.com: Muere James Watson, quien construyó su fama (y su Nobel) sobre el trabajo de Rosalind Franklin que nunca reconoció.
De nada.
De nada.
Did I just purchase a $100 phone? Absolutely! to see how badly many websites perform in the wild.
If your site is only fast on a flagship device, you're excluding millions of users. Stop designing for luxury! Emulators lie, low-cost hardware shows the truth.
If your site is only fast on a flagship device, you're excluding millions of users. Stop designing for luxury! Emulators lie, low-cost hardware shows the truth.
November 5, 2025 at 5:10 PM
Did I just purchase a $100 phone? Absolutely! to see how badly many websites perform in the wild.
If your site is only fast on a flagship device, you're excluding millions of users. Stop designing for luxury! Emulators lie, low-cost hardware shows the truth.
If your site is only fast on a flagship device, you're excluding millions of users. Stop designing for luxury! Emulators lie, low-cost hardware shows the truth.
Reposted by Estela Franco
✨ It’s that time of year! The State of JavaScript 2025 survey is currently running. 😄
I take the survey every year. It’s a great way to keep up with all of the new features and APIs that have come to browsers in the past year.
stateofjs.com/en-US
I take the survey every year. It’s a great way to keep up with all of the new features and APIs that have come to browsers in the past year.
stateofjs.com/en-US
State of JavaScript
stateofjs.com
November 3, 2025 at 3:45 PM
✨ It’s that time of year! The State of JavaScript 2025 survey is currently running. 😄
I take the survey every year. It’s a great way to keep up with all of the new features and APIs that have come to browsers in the past year.
stateofjs.com/en-US
I take the survey every year. It’s a great way to keep up with all of the new features and APIs that have come to browsers in the past year.
stateofjs.com/en-US
Reposted by Estela Franco
performance.now() 2026 will take place on 19th and 20th of November 2026. #perfnow.
November 1, 2025 at 8:21 AM
performance.now() 2026 will take place on 19th and 20th of November 2026. #perfnow.
Reposted by Estela Franco
Reposted by Estela Franco
Fellow #perfnow fellows, a reminder that PerfPlanet calendar is coming this December for another edition. And it needs YOU. Please ask if you have any contribution ideas or concerns calendar.perfplanet.com/contribute/
Contribute
Passionate about a topic? Working on a new tool? Have a technique you want to teach? Research you've done? Tell the web performance community!
Send your articles to ssttoo@ymail.com. Please include:
...
calendar.perfplanet.com
October 30, 2025 at 4:59 PM
Fellow #perfnow fellows, a reminder that PerfPlanet calendar is coming this December for another edition. And it needs YOU. Please ask if you have any contribution ideas or concerns calendar.perfplanet.com/contribute/
Reposted by Estela Franco
Making Sense of Long Animation Frames…
The slides from my #PerfNow talk are available on Notist
noti.st/andydavies/9...
The slides from my #PerfNow talk are available on Notist
noti.st/andydavies/9...
Making Sense of LoAF by Andy Davies
Over time the web has become more reliant on JavaScript… but we’ve very little information on how its growth is affecting our visitors’ experience.
noti.st
October 31, 2025 at 4:23 PM
Making Sense of Long Animation Frames…
The slides from my #PerfNow talk are available on Notist
noti.st/andydavies/9...
The slides from my #PerfNow talk are available on Notist
noti.st/andydavies/9...
Reposted by Estela Franco
Here are mine: speakerdeck.com/ethangardner...
Web Performance Allies - PerfNow 2025
Image credits:
https://commons.wikimedia.org/wiki/File:TAR_Detour_clue.png
https://commons.wikimedia.org/wiki/File:Carach_Angren_M%C3%A9an_22_08_200…
speakerdeck.com
October 31, 2025 at 3:16 PM
Here are mine: speakerdeck.com/ethangardner...
Reposted by Estela Franco
For those who just watched @tunetheweb.com 's presentation, this is the SPDY STREAM he just posted about w/ @yoav.ws + @krzksz.bsky.social of Shopify. Thank again Barry!
#perfNow
🎥 youtu.be/DHgoULxvuJ8
#perfNow
🎥 youtu.be/DHgoULxvuJ8
October 31, 2025 at 2:15 PM
For those who just watched @tunetheweb.com 's presentation, this is the SPDY STREAM he just posted about w/ @yoav.ws + @krzksz.bsky.social of Shopify. Thank again Barry!
#perfNow
🎥 youtu.be/DHgoULxvuJ8
#perfNow
🎥 youtu.be/DHgoULxvuJ8
Reposted by Estela Franco
October 31, 2025 at 1:48 PM
Reposted by Estela Franco
Loving @ethangardner.com’s talk about making #webperf allies! Totally agree that competitive benchmarking can get marketing folks excited about performance Fun fact: you can do that with @speedcurve.com!
#PerfNow
support.speedcurve.com/docs/competi...
#PerfNow
support.speedcurve.com/docs/competi...
How to Benchmark Your Site Speed Against Competitors
Knowing which of your competitors are faster than you is a great way to get web performance buy-in throughout your organization.
support.speedcurve.com
October 30, 2025 at 4:28 PM
Loving @ethangardner.com’s talk about making #webperf allies! Totally agree that competitive benchmarking can get marketing folks excited about performance Fun fact: you can do that with @speedcurve.com!
#PerfNow
support.speedcurve.com/docs/competi...
#PerfNow
support.speedcurve.com/docs/competi...
