https://www.tunetheweb.com Barry Pollard's thoughts about web performance, security and usability en-GB Thu, 29 Jun 2023 11:10:11 +0000 https://www.tunetheweb.com/blog/what-does-the-image-decoding-attribute-actually-do/ An in-depth look at the decoding attribute and how it affects web performance differently when using sync, async or not at all https://www.tunetheweb.com/blog/what-does-the-image-decoding-attribute-actually-do/ Mon, 26 Jun 2023 13:04:00 +0000 https://www.tunetheweb.com/blog/what-we-learned-about-core-web-vitals-from-google-io/ The 2021 Google IO event had a number of presentations about Core Web Vitals so what did we learn from them up the upcoming page experience ranking? https://www.tunetheweb.com/blog/what-we-learned-about-core-web-vitals-from-google-io/ Sun, 23 May 2021 07:53:00 +0000 https://www.tunetheweb.com/blog/making-the-slowest-fast-page/ Can you make a webpage which gets 100 score in Lighthouse and passes all the Core Web Vitals and still feels slow? https://www.tunetheweb.com/blog/making-the-slowest-fast-page/ Wed, 10 Mar 2021 09:40:00 +0000 https://www.tunetheweb.com/blog/what-do-lighthouse-scores-look-like-across-the-web/ An in-depth look at Lighthouse scores across the 6.8 Million sites the HTTP Archive crawled in September 2020 https://www.tunetheweb.com/blog/what-do-lighthouse-scores-look-like-across-the-web/ Sat, 03 Oct 2020 09:29:00 +0000 https://www.tunetheweb.com/blog/setting-height-width-images-important-again/ Thanks to some recent changes in browsers, it's now well worth setting `width` and `height` attributes on your images to prevent layout shifts and improve the experience of your site visitors. https://www.tunetheweb.com/blog/setting-height-width-images-important-again/ Mon, 09 Mar 2020 17:09:00 +0000 https://www.tunetheweb.com/blog/should-you-self-host-google-fonts/ A deep dive into the performance implications of using Google Fonts (good and bad) and whether self-hosting is better. https://www.tunetheweb.com/blog/should-you-self-host-google-fonts/ Sun, 12 Jan 2020 13:26:00 +0000 https://www.tunetheweb.com/blog/running-lighthouse-in-github-actions/ How to set up automatic runs of Ligthouse audits on pull requests using GitHub actions. https://www.tunetheweb.com/blog/running-lighthouse-in-github-actions/ Tue, 03 Dec 2019 18:43:00 +0000 https://www.tunetheweb.com/blog/helping-to-create-the-web-almanac/ The story behind the HTTP Archive Web Almanac from one of it's contributors. https://www.tunetheweb.com/blog/helping-to-create-the-web-almanac/ Tue, 03 Dec 2019 18:43:00 +0000 https://www.tunetheweb.com/blog/critical-resources-and-the-first-14kb/ Do you really need to optimise as much of your critical page into the first 14 KB of your HTML for TCP reasons? Or does that not hold true in an HTTPS world? https://www.tunetheweb.com/blog/critical-resources-and-the-first-14kb/ Mon, 05 Aug 2019 12:49:00 +0000 https://www.tunetheweb.com/blog/adding-controls-to-google-tag-manager/ 12 tips to enforce control to secure Google Tag Manager (GTM) and prevent security or performance problems https://www.tunetheweb.com/blog/adding-controls-to-google-tag-manager/ Sat, 25 May 2019 13:43:00 +0000 https://www.tunetheweb.com/blog/writing-a-technical-book-for-manning/ If you've ever thought of publishing a tech book then read up on my experiences writing HTTP/2 in Action for Manning. https://www.tunetheweb.com/blog/writing-a-technical-book-for-manning/ Fri, 19 Apr 2019 11:43:00 +0000 https://www.tunetheweb.com/blog/why-do-we-need-http2/ Why do we need HTTP/2? In this article, we’ll show why HTTP/1.1 has fundamental performance problems, and therefore why HTTP/2, is needed now. https://www.tunetheweb.com/blog/why-do-we-need-http2/ Mon, 19 Feb 2018 22:43:00 +0000 https://www.tunetheweb.com/blog/further-thoughts-on-accelerated-mobile-pages/ A review of AMP a couople of years after implementing this on my site and what changes (if any) it made. https://www.tunetheweb.com/blog/further-thoughts-on-accelerated-mobile-pages/ Sun, 11 Jun 2017 18:00:00 +0000 https://www.tunetheweb.com/blog/thoughts-on-google-versus-symantec/ Google has recently been punishing Symantec for a number of incidents when issuing certificates and are now proposing even more restrictions. https://www.tunetheweb.com/blog/thoughts-on-google-versus-symantec/ Thu, 30 Mar 2017 19:27:00 +0000 https://www.tunetheweb.com/blog/http-versus-https-versus-http2/ Some people claim HTTPS is faster then HTTP and it can be - if you use HTTP/2 - but what's a real picture of these three protocols. https://www.tunetheweb.com/blog/http-versus-https-versus-http2/ Sun, 10 Jul 2016 22:34:00 +0000 https://www.tunetheweb.com/blog/what-does-the-green-padlock-really-mean/ What does that green padlock on a website really mean, what's the difference between DV OV and EV certs? What does a CA do? https://www.tunetheweb.com/blog/what-does-the-green-padlock-really-mean/ Wed, 27 Jan 2016 19:31:00 +0000 https://www.tunetheweb.com/blog/implementing-accelerated-mobile-pages/ Learn how I added Google Accelerated Mobile Pages (AMP) to this site and use my example to implement on your own site https://www.tunetheweb.com/blog/implementing-accelerated-mobile-pages/ Thu, 24 Dec 2015 18:00:00 +0000 https://www.tunetheweb.com/blog/inlining-css-is-not-for-me/ Inlining CSS into a style block in your HEAD tag can have massive performance benefits but I still don't recommend it. Find out why. https://www.tunetheweb.com/blog/inlining-css-is-not-for-me/ Thu, 24 Dec 2015 18:00:00 +0000 https://www.tunetheweb.com/blog/do-we-really-need-google-amp/ Google is trying to fix the mobile web with Accelerated Mobile Pages Project (AMP), but do we really need another format to do this? https://www.tunetheweb.com/blog/do-we-really-need-google-amp/ Fri, 09 Oct 2015 19:57:52 +0000 https://www.tunetheweb.com/blog/ Keep up to date with changes to tunetheweb.com and read any articles, or opinions, that don't really fit in with the rest of the site. https://www.tunetheweb.com/blog/ Tue, 15 Sep 2015 21:33:50 +0000 https://www.tunetheweb.com/blog/dangerous-web-security-features/ Are some web security features like HSTS, HPKP and CSP too dangerous for mainstream use due to the potential to DoS yourself? https://www.tunetheweb.com/blog/dangerous-web-security-features/ Mon, 07 Sep 2015 23:55:31 +0000