Estela Franco

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

2,141 Followers 343 Following 346 Posts Joined Apr 2023
2 weeks ago

Interested in the @httparchive.org and not sure where to start? During the @performanceobserver.dev meetup tomorrow (12:30pm ET), I'm going to be providing an overview of the HTTP Archive and demonstrate how to start querying it! performanceobserver.dev/events/episo...

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3 weeks ago
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Standard HTML Video & Audio Lazy-loading is Coming! | Scott Jehl, Web Designer/Developer A quick update on my team's work to bring video and audio lazy loading to browsers today

🦥 A fun update over on the blog: 🦥
Standard HTML Video & Audio Lazy-loading is Coming!
scottjehl.com/posts/lazy-m...

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3 weeks ago

Save the date! 🤩

The next @performanceobserver.dev will be on February 26
at 6:30 PM CET (12:30 PM ET / 9:30 AM PT)

All the details and "add to calendar" links in performanceobserver.dev

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3 weeks ago
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Greatest Disaster Hits in Web Performance BILBOSTACK 2026. Major hits from yesterday and today that are destroying your project's loading speed, user experience, and business metrics (and how to…

Ay! Disculpa, que la compartí por LinkedIn pero no por aquí 😅 Suspenso en Social Media 😂

Aquí la tienes: speakerdeck.com/guaca/greate...

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3 weeks ago
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a man and a woman are jumping in the air in a hallway with their hands in the air . Alt: Two men and a woman are jumping in the air in a hallway with their hands in the air .

¡Cómo te entiendo! 😁

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1 month ago

Being the homeowner didn't give me any extra luck this time! 😢 Either way, we’ve finally identified the issue and know how to fix it. And yes, fingers crossed everything stays stable for at least another decade! 😅

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1 month ago
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🚨 @microsoft.com Advertising has published a new version of AI Search Demystified: a clear, practical blueprint for today’s AI-driven discovery landscape.

I’m grateful to have been invited to contribute insights with other industry specialists 🙌

Read here: about.ads.microsoft.com/en/resources...

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1 month ago

We finally got a competent electrician out on Monday evening, and he’s partially fixed the problem. Welcome back hot water, heating, and power to half the house! Hopefully, we’ll have the rest of the damaged installation sorted by this weekend 🙏

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1 month ago

After recent electrical chaos at home, I’m 🤏 this close to trading my keyboard for a multimeter and becoming an electrician. High demand, high pay, and zero chance of an LLM stealing my job ⚡️🔧

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1 month ago

Oh! “Gomet verd 🟢” for actually remembering what we talked about, Vicenç! 🤩

I really enjoyed this piece by @paulcalvano.bsky.social. It provides a much deeper dive into the CDNs data than what I presented in Bilbao. It’s a perfect example of the insights you can unlock with data at scale!

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1 month ago
The State of Global Website Performance in China Report Read the full report for the results of 614 global websites tested from Beijing (China), Virginia (US), and London (UK). Here's what we discovered about how global websites behave for users in Mainlan...

Still fascinating how many global sites that load fast elsewhere still stall inside China.

40-60% of visitors time out, with pages taking 18sec+ vs 2sec.

Sharing the State of China Web Perf Report 2025. Benchmarks, root causes, & what improves after optimization. insights.chinafy.com #china

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1 month ago
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a woman is crying and holding a tissue in her hand with the words thank you written on it . Alt: a woman is crying and holding a tissue in her hand with the words thank you written on it .
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1 month ago

Tampoco suena a planazo de fin de semana eso… Ánimo! 🫂

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1 month ago

What an intense weekend. Highly recommended if you want to truly appreciate the modern comforts we usually take for granted just because they work.

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1 month ago

We even bought a new one, thinking the old one was the problem. Nope. It seems to be something much bigger, and there’s no way to get the electricity back.

So, here we are: no power, which means no heating or hot water. No Wi-Fi, and no way to charge our phones…

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1 month ago

After finally managing to fix it by Sunday morning, we got to enjoy a few 20th century luxuries, like doing the laundry or taking a shower. But our bliss was short. Barely four hours later, the main circuit breaker tripped, and we lost power.

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1 month ago

Greetings from the 19th century! It’s been an eventful weekend, to say the least. We kicked things off on Friday night with a burst pipe that turned our main floor and basement into a spa with several swimming pools 🌊🌊🌊

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1 month ago

You can vibe code your way to a working prototype. You cannot vibe code or one-shot your way to a competitive product that works at scale. The hard part isn't writing code; it's the architectural supervision.

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1 month ago

I loved it! Thanks for sharing with us ❤️

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1 month ago
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The Complete Guide To Ecommerce SEO in 2026 | DebugBear Learn how to optimize your ecommerce website for search engines in 2026. This guide covers keyword research, site architecture, technical SEO, Core Web Vitals, and strategies for AI-powered search.

How do you get customers to find your online store?

We just published an in-depth guide on ecommerce SEO, covering everything from keyword research to site architecture and performance optimization.

Check it out here: www.debugbear.com/blog/ecommer...

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1 month ago
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a man in a red shirt is making a funny face in front of a blackboard . Alt: A man in a red shirt is making a funny face in front of a blackboard while holding a really tiny piece of paper with his right hand.

Trying to work today without an external, large display 😫

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1 month ago

Vídeo no, ya que no se graban las sesiones. Pero compartiré la presentación esta semana 🙏

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1 month ago

Something I've been helping @yoav.ws with. A proposal to allow you to measure Speculation Rules API and <link rel=preload> usage.

Are you over-speculating? Under-speculating?

Until now you've only really been able to measure secondary impact, but with this proposal you'll can have better data.

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1 month ago
London Trip
2m ago
Flight BA-8076 from BCN to LHR is delayed. The new departure time is 8:20 AM (originally 7:30 AM).

This is a bad joke…

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1 month ago

At least I’m doing it for a good reason. Who am I seeing at #WTSFest London tomorrow? 👀

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1 month ago

On my way to the airport, reviewing all my life decisions that led me to booking an early flight *again*.

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1 month ago

Ay! Muchas gracias pon tus palabras!!! 😍

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1 month ago
Estela Franco on stage at Bilbostack, pointing to a presentation slide explaining the browser execution differences between various HTML script tags, including defer and async attributes.

Greatest disaster hits on web performance. @guaca.bsky.social on stage🤩

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1 month ago
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El cartel de este festi sí que mete miedo #bilbostack26 @bilbostack.com

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1 month ago
Empieza la ponencia de @guaca.bsky.social en @bilbostack.com sobre Great Disaster Hits en Web Performance 

#bilbostack26

Empieza la ponencia de @guaca.bsky.social en @bilbostack.com sobre Great Disaster Hits en Web Performance

#bilbostack26

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