Ilya Grigorik

Our latest news, updates, and stories by Ilya Grigorik.

Reduce web font size

Ilya Grigorik, Jeremy Wagner

Updated: Aug 18, 2022

Performance Fonts Web Vitals

Optimize WebFont loading and rendering

Updated: Jul 3, 2020

Performance Fonts

Prevent unnecessary network requests with the HTTP Cache

Jeff Posnick, Ilya Grigorik

Updated: Apr 17, 2020

Choose the right image format

Ilya Grigorik, Jeremy Wagner

Updated: Jul 31, 2022

Performance Images

Choose the correct level of compression

Ilya Grigorik, Jeremy Wagner

Updated: Jun 18, 2020

Performance Images

PageSpeed Rules and Recommendations

Updated: Mar 31, 2014

Introduction to HTTP/2

Ilya Grigorik, Surma

Updated: Sep 1, 2019

Delivering Fast and Light Applications with Save-Data

Ilya Grigorik, Dave Gash, Jeremy Wagner

Updated: Apr 19, 2018

Constructing the Object Model

Updated: Mar 15, 2019

Analyzing Critical Rendering Path Performance

Updated: Aug 17, 2018

Measuring the Critical Rendering Path

Updated: Aug 17, 2018

Optimizing the Critical Rendering Path

Updated: Aug 17, 2018

Render Blocking CSS

Updated: Aug 17, 2018

Render-tree Construction, Layout, and Paint

Updated: Aug 17, 2018

Critical Rendering Path

Updated: Aug 17, 2018

Eliminating Unnecessary Downloads

Updated: Aug 17, 2018

Optimizing Encoding and Transfer Size of Text-Based Assets

Updated: Aug 17, 2018

Optimizing Content Efficiency

Updated: Aug 17, 2018

Adding Interactivity with JavaScript

Updated: Aug 17, 2018

See more Authors