I'm trying to add ads to my web app and I used adsense and it's telling me to paste this script to the head of the html
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-secret-client-number"
crossorigin="anonymous"></script>
Without this script and running lighthouse I get a performance score of 99 and after using it it drops down to 70-75
Should I use Partytown or is there a way around
Use Partytown.
I recently added Partytown to our site. In the research I did for it, I didn't really find anything that offers offloading the script to a web worker like Partytown does. It's fairly simple to implement and provides a significant boost to performance.
It's important to note that it is still in beta, so there may be bugs. But in my experience, working with it has been pretty smooth.
Related
I am deploying a web application and I am able to compress CSS and js in my web application using page speed module in nginx/apache, but couldn't able to remove HTML white space.
Does anyone has done this before, I have seen this implementation in a major website such as LinkedIn Facebook, and Google.
Does removing white space in HTML add performance boost? As per my understanding removing whitespace reduces some extra bytes.
Here is an example of a condensed version of HTML page from google.
Does removing white space in HTML add performance boost?
Unlikely will you benefit much given that gzip is enabled for your site. The more you save during such a stripping phase the less benefit you would gain from gzipping and vice versa.
BTW, mod_pagespeed has the collapsible module doing what you're asking.
If mod_pagespeed doesn't meet your requirements
Multiple options
if you have a static html pages that just need to be returned to the user it's quite easy to do in offline mode
you can also do it at backend level using your framework batteries. I.e. in case you use a python framework this module could be used
django-html is an HTML minifier for Python, with full support for HTML
5. It supports Django, Flask and many other Python web frameworks. It also provides a command line tool, that can be used for static
websites or deployment scripts.
if none of the options above are viable use some 3rd party modules doing it at nginx level
depending on your needs you might also consider services like cloudflare
You can use tools like https://www.textfixer.com/html/compress-html-compression.php
If you use a text editor like atom or vscode you might as well look for a plugin that does that for you.
It doesn't really affect much on the performance, as you said it will reduce some bytes, but as I suspect you're not building something as big as an Amazon site it doesn't quite matter, moreover it will be a pain to read the code.
I know there are several tools available to find unused CSS on a static web page. But in most real world scenarios I encounter, a lot of the CSS is used after some or the other interaction on the page, maybe a new modal opening up or an options popup etc.
In such scenarios, what would you suggest? How do I keep a tab on my ever-growing render blocking CSS?
The only way I guess one could do that is by running regular unused-css-detector type tools in conjunction with Selenium - test known interactions and see whats left unused. But a big assumption here is that I'd need to know all interactions on my page which could use new CSS. Is there a way to achieve my goal without making this assumption?
In an ideal world, I'd be able to post-back all CSS used by a visitor's browser on my page to my server. Then I'd collect data over a month, aggregate, and get a pretty accurate idea about actual unused CSS.
Any good ideas?
I am the author of a tool that is aiming at doing what you are describing. Everywhere I worked, the CSS is this "append-only" thing that is too risky, too time-consuming to clean up. And even when you try, the ROI is so low that it not worth it.
So I am working on a tool that is very similar to what you are describing. The goal is to bring confidence on what can be removed, and to actually do it automatically by submitting pull requests.
A snippet of JavaScript is running in the browser and sends reports of what is being used to a server. Once enough data is accumulated to build some "confidence score", it can create Pull Request automatically to remove selectors that are actually not used.
It is still very early stage, but you are welcome to try it and give some feedback about it.
https://www.bleachcss.com/
I've pretty much set my mind on using CreateJS to create an HTML5 game, but I also came across H5CGB, a boilerplate created specifically for creating HTML5 canvas games. It looks very thorough and I believe the developer when he says it would save me heaps of time writing code I would have had to write anyway.
However, looking at tutorials for both CreateJS and H5CGB, they seem to conflict quite a bit, at least in terms of how these specific tutorials implement their respective tools:
http://hub.tutsplus.com/tutorials/learn-createjs-by-building-an-html5-pong-game--active-11845
http://icecreamyou.github.io/HTML5-Canvas-Game-Boilerplate/docs/#!/guide/walkthrough
I'm basically just trying to understand how to integrate these two systems. For example, both come with their own preloader utility, so I'm not sure which to use and if they would cause issues or if it's just a redundancy resulting in unnecessarily longer loading times.
Has anyone had any experience working with these two tools together?
I believe you should probably just stick to using createJS because the two frameworks do have a lot of overlapping functionality. It wouldn't make sense to use both.
I think you should also check out other game specific frameworks like Crafty.js and possibly watch Google I/O Canvas to get a good idea on the total range of your options!
Crafty
http://craftyjs.com/
Google I/O
http://blog.sethladd.com/2011/05/source-code-slides-and-video-for-html5.html
Hope this helps and good luck learning canvas!
Shalom
I created H5CGB. (Just found this question today via the newly-released Github traffic stats.)
The biggest two reasons to use H5CGB are:
You do not have to learn any new APIs to start developing. H5CGB provides a bunch of scaffolding you can use to skip the boring stuff, but you won't get into trouble if you want to implement any part of your app yourself, and you probably can get going immediately just by editing main.js without even reading the documentation.
The code base is intended to be boilerplate, so you can use all the utilities and scaffolding H5CGB provides as a starting point and edit it if you want things to work differently.
This is in contrast to most other canvas libraries, which tend to be monolithic black boxes of no-touchiness with sparsely documented APIs.
I want to know if a html video is being displayed on a browser, from outside said browser, ideally without any plugins or such.
Motivation - I am trying to add this feature to Caffeine which is a Linux utility which disables the OS screensaver if, say, you are watching a movie.
The flash support was done I believe by detecting the presence of particular files or folders created by the plugin.
Ideally I would like 1 solution, but if I get 2 solutions for Firefox and Chrome, that's good enough.
p.s. Ultimately this would involve python code, but I am not sure if that is sufficient to make this question on-topic, or if this belongs on Superuser or Unix&Linux
This reminds me of something a web browser I was building in VB .Net which needed to detect if there where web pages that had tags like <a href="tel: or <a href="smsI know you said you didn't want a plugin but I would think you could easily right a browser plugin for for just this. In fact not exactly what your looking for but theirs a script monkey script called Hangouts Unlimited which prevents you from getting annoying messages asking if your still awake while in a G+ hangout. I don't know much about python but I would recomennd trying to identify the elements of the tags and when ever it finds such tags to disable the screen saver. Obviously the hangouts unlimited doesn't affect the web browser and that is most likely why you prefer not to have a browser plugin because you need to access system files outside of the browser. But I hope this helps a bit.
I'm looking for some advice on what I "should" research for a particular project I've been asked to keep in mind. I've been doing so for roughly 3 days by exploring various Google technologies, but none of them seems quite right.
I need to put together something for gmail that's roughly equivalent to something I've put together for Windows Outlook. I'll explain in brief therefor what I've done for Outlook users, to give you a feel for what I'm looking for. I put together an Outlook C# AddIn that when loaded by Outlook on startup adds a number of clickable tabs, buttons, and other assorted interface elements to the Outlook interface. When you click them the C# code in my Add-In is invoked in various ways to carry out various activities, like archiving the email message that's currently selected in a remote database managed by one of our web applications. It does this by calling a variety of Outlook C# APIs that are available to any loaded AddIn, to extract or manipulate various Outlook "objects". Another thing it does on a button click is bring up a web browser the AddIn creates from a .Net class "webbrowser control" instance, essentially adding chrome to the IE "engine". It also adds what it needs to to the DOM of that web browser to make a large number of Add-In C# functions callable by javascript code that might be running in pages of that browser, essentially giving our web applications a way to "ask" my AddIn to create Outlook contacts, tasks, messages etc on behalf of that application. The gist of it is that the UI I add to the Outlook application can be used to make various web service calls to our applications (based on the state of various Outlook "objects" made visible/manageable by way of the Outlook C# API), and the state of the Outlook application can be manipulated by javascript code running in web application pages that happen to be loaded in the web browser it creates.
I need to support "similar" functionality with respect to the altogether different gmail beast (rather than a Windows application a browser based web app). I feel a bit like I've been spinning in circles the last few days, while investigating. I began by researching gmail Sidebar and Contextual gadgets, to add some roughly equivalent UI of my own to gmail, but found fairly quickly that I can't really get to any gmail APIs using them, only try to shoehorn what I've got into a set of triggered gmail "behaviors" supported by contextual gadgets, which I came to realize isn't really sufficient to support what I want. Eventually I navigated my way to the set of developer pages describing Google Apps Script supported functionally, which seemed for a time like "the way to go" to provide me with hooks into gmail APIs. I played a bit with them, making a web app script to collect the subject lines of all my gmail messages and dump them into a UI also built by the script, just to get an experimental quick feel for how things fit together. The script works, but it seems pretty slow, taking roughly a minute to collect and display just 57 email subject lines. And I can't really figure out how to get any script built UI into the gmail user interface. I tried building a side bar gadget with the URL of my app script referenced (with no HTML or javascript in the content tag body at all). An area is allocated to the gadget ok, but my script UI never appears in it. After playing a bit unsuccessfully to get my script to run in an iframe in a completely different context, just experimenting again to see what I might be able to do, I'm beginning to get the impression that some security related caveat prevents it from building/displaying its interface in either an iframe or a gmail side bar gadget, though perhaps I'm just missing some essential piece of information.
My question is a bit big I know, but "should" I be looking to other Google technologies to build the sort of thing I have in mind, or am I "roughly" following a tenable track. I'm looking for some rough architectural advice I guess, some hints about what maybe I should further explore.
With Google Apps Script you cannot add anything to the Gmail interface. Putting it simply, it will not do what you want.
Now back to your problem, if sidebar and contextual gadgets are not enough for you. The only solution I see where you can really manipulate the page is via an add-on/extension/script installed on the users browser.
This approach is powerful, in the way that you can change the page as you like, but has its shortcomings as well. First, and more obvious, it's somewhat browser dependent and installed locally on a browser. Meaning that if the user switch computers or browsers, he'll need to re-install your add-on.
Also, you're somewhat dependent on gmail's "internal" structure. I say "somewhat" because that depends on how you coded your app. But they may make a change and break your app instantly, without any notice, since gmail's html-css structure is not a "published API".
Well, that's my 2 cents. I hope it helps.
Use JSF and rich faces. this can give u a google gmail like looks and development with this is very easy and fast.
Happy Coding