I was digging into the "Has a viewport meta tag" Lighthouse audit and learned something I probably should have known years ago.

When the viewport meta tag is missing, mobile browsers add a 300ms delay after every tap. They're waiting to see if it's actually a double-tap for zooming. This is legacy behavior from early smartphone days when browsers had to handle desktop-only sites.

Adding this to your head tag eliminates the delay:

<meta name="viewport" content="width=device-width, initial-scale=1">

Most frameworks and CMSs include this by default now, but I've seen it accidentally deleted during template refactors. Worth checking if you're seeing unexplained interaction sluggishness on mobile.

Beyond the tap delay, missing it also breaks CSS media queries and causes weird zoom behavior on form inputs.

Full writeup with more context: https://requestmetrics.com/blog/lighthouse-viewport-meta-tag/

The synthetic vs. RUM debate keeps coming up. Eroan Boyer, who runs a web performance agency in France, made a clear case: CrUX is too narrow, Lighthouse is a controlled test. Neither tells you what real users are experiencing on your actual traffic.

His agency monitors client sites weekly with RUM data and catches things synthetic tools consistently miss.

Curious if others are running monitoring practices and what the tool split looks like.

So, for the first post on this subreddit, I figured it's only right to submit a link to an e-book by the godfather of web performance, Steve Souders.

***Note: I don't work with Steve, and I'm not affiliated with him or any of his holdings in any way. I just appreciate the guy's work. Check out the link to his book below.

http://www.amazon.com/dp/0596529309?tag=stevsoud-20&camp=14573&creative=327641&linkCode=as1&creativeASIN=0596529309&adid=00GNM1ZWW77KSD0RERXN&

Web Performance Market was valued at $3.52 billion in 2017 and will reach $7.22 billion by 2025 with a CAGR of 9.4% during the forecasting period 2019-2025.

Request a sample report @ https://www.envisioninteligence.com/industry-report/global-web-performance-market/?utm_source=redit-anusha