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Sia Karamalegos 13 posts

Freelance performance engineer and web developer, speaker, teacher, community organizer, and Google Developers Expert in Web Technologies. Available for contract consulting.

2025

How I Built Shopify Theme Vitals using 11ty and CrUX

Building a site that shows real-user web performance data by Shopify theme using HTTP Archive, the Chrome User Experience Report, BigQuery, Node, and 11ty

Using 11ty to build a data and chart analytics website with Sia Karamalegos

YouTube video

2024

Dynamic social share images using Cloudinary

Automatically generate unique Open Graph images for each page of your website

Automatically generating social share images using Cloudinary with Sia Karamalegos

YouTube video

Migrating from Netlify to Cloudflare for AI bot protection

How I migrated my static site from Netlify to Cloudflare including setting up Functions to handle contact form requests

2022

Building a Serverless E-commerce Store with Stripe, Netlify, & 11ty

A lot of e-commerce solutions exist, but many of them charge a monthly fee. How could we build a site with the lowest hosting costs possible?

2021

An In-Depth Tutorial of Webmentions + Eleventy

Join the Indie Web by adding Webmentions to your serverless Eleventy static site with this step-by-step tutorial. No client-side JavaScript needed!

Webmentions + Eleventy Talk

Slides and resources from my talks at JamStack Toronto and Magnolia JS.

Itsiest, Bitsiest Eleventy Tutorial

Want to get started with Eleventy but feel overwhelmed? Try out this pared-down tutorial

Faster YouTube embeds in Eleventy

Use lite-youtube-embed in Eleventy for faster and more privacy-minded video

2020

Optimize Images in Eleventy Using Cloudinary

Learn the fundamentals behind responsive images and how to set them up in Eleventy using Cloudinary and Eleventy shortcodes

Architecting data in Eleventy

Setting and using data in the static site generator Eleventy

2019

Show conditional Twitter intents with Eleventy

Encourage users to retweet or share a post based on whether a Tweet already exists for your blog post.

Some content below may have been published before the release of Eleventy v3.0.0 (October 1, 2024). Information may have changed in newer versions. Current stable release: 3.12
Some content below may have been published before the release of Eleventy v2.0.0 (Feb 8, 2023). Information may have changed in newer versions. Current stable release: 3.12.
Some content below may have been published before the release of Eleventy v1.0.0 (Jan 8, 2022). Information may have changed in newer versions. Current stable release: 3.12.
All of the content below was published before the release of Eleventy v1.0.0 (Jan 8, 2022). Information may have changed in newer versions. Current stable release: 3.12.