Sunday, August 17, 2014

Faster YouTube Embeds with JavaScript

Faster YouTube Embeds with JavaScript

We want our visitors to get our content as fast as possible, which means as light as we can, and with the minimum number of requests. But we want to keep them on our pages, and be entertained. This is where embedding videos enters the scene.

Videos illustrate our textual content, bring life to it, and are often served by a third party. What more to ask? Well, there’s a hidden price tag: they are slow and heavy to download, even when the visitor is not watching them.

One simple video on a page called through an innocuous iframe can add up to 6 HTTP requests and as much as 450kb of content. The solution I’m proposing can reduce those numbers to 1 request and about 50kb per video, along with a few bytes of JavaScript.

If you want to know more, I invite you to read the full article on Sitepoint.

Photo credit: Mirror of Ashes

Accélérez vos pages contenant des vidéos YouTube (full article in French)
Acelere sus páginas con vídeos de YouTube (full article in Spanish)
Acelere suas páginas com vídeos YouTube (full article in Portuguese)

Sunday, July 6, 2014

Online Marketing Strategies - Community Manager (MOOC)

Online Marketing Strategies - Community Manager (MOOC)

Titled Online Marketing Strategies. Community Manager, this course is offered in Spanish. It is structured in four modules dedicated to the community managers: online strategies, blogs and microblogs, social networks and community manager, and online advertising.

Saturday, June 21, 2014

Web Content Accessibility Guidelines WCAG 2.0 (MOOC)

Web Content Accessibility Guidelines WCAG 2.0 (MOOC)

Offered in Portuguese by the Polytechnic Institute of Leiria, Portugal, via its Up2U platform, this course entitled Knowing the Web Content Accessibility Guidelines WCAG 2.0 presents the Web Content Accessibility Guidelines in context. Its authors are Manuela Francisco, instructional designer at the Polytechnic Institute, and Norberto Sousa, accessibility and websites validation consultant.

Sunday, March 30, 2014

Semantic Web Technologies (MOOC)

Semantic Web Technologies (MOOC)

This course presents the fundamentals of Semantic Web technologies, i.e. how to represent knowledge and how to access and benefit from semantic data on the Web. It is lectured in English by Dr. Harald Sack, a senior researcher at the Hasso Plattner Institute of Potsdam, and is available on the openHPI platform.

Sunday, February 9, 2014

Web User Experience (MOOC)

This Web User Experience course is a MOOC offered by the website. It is lectured by Amir Ansari, and is part of the Internet Communications Bachelor of Arts.

Sunday, January 5, 2014

Responsive Web Design: some paths to follow

Responsive web design is an area with constant novelties and avenues for reflection, often accompanied by concrete examples of code to demonstrate their relevance. Today, we will focus on the problem of tabs, on readability and the length of lines, on the different uses of the devices and their screen size, before glimpsing on what the future has for us.

Monday, December 2, 2013

Responsive tables

Tabular data is an often used layout component that imposes some tricky decisions in a responsive environment. If the table is wider than the viewport, we can enable horizontal scrolling, hide some columns, show a sum up of the table with a link to the full version of it, or we can make other decisions as well.