What is the best way to ensure that a Google Tag Manager tag runs before any HTML content is displayed?

I've been experimenting with GTM to customize the look of a cloud application without access to its core files. My goal is to use GTM to make some CSS adjustments before the old design becomes visible to my clients.

So far, I've tried using Page View Trigger on All Pages or Page View Trigger with a Page URL Contain Filter. While this method works well, the issue is that clients still see the old design for a brief moment before it quickly changes (1-2 second delay).

I'm seeking a solution to eliminate this slight delay and prevent the old design/content from appearing altogether. However, I'm unsure which triggers or events to utilize in order to achieve this.

Any guidance would be greatly appreciated. Thank you.

Answer №1

According to Google's recommendations, using GTM for tags that alter the layout or force repaints is not advised. They suggest avoiding these types of tags, known as "tags that are associated with in-page structure." Since GTM does not reliably fire CSS-changing tags synchronously before anything else loads, it may not be the best solution for this purpose.

One workaround sometimes employed, such as when implementing A/B tests through GTM, is to include a body class in the application files to hide the body initially and then allow GTM to reveal it after making changes to the page layout. However, this approach would likely necessitate access to the page code at least once.

In this case, it appears luck may not be on your side.

Answer №2

One effective technique is to implement a page-hiding snippet similar to the one used by Google Optimize. This snippet hides the page temporarily while modifications are being made to the DOM or CSS.

Further information can be found in the documentation: https://developers.google.com/optimize/devguides/pagehiding

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Issue with table not remaining inside the div on the content page of WordPress site

I am having trouble with a div on my website. When I include a table in one div it resizes perfectly, but when I do the same in another div using a different template, it doesn't work as expected. To see the issue, please visit: Home page, bottom lef ...

php html css wordpress blogs

How to line up text in HTML so that Unicode characters are aligned to the left and right within

Is there a way to align text on the left and right side of the same line? I experimented with various solutions for non-Unicode text that I found here. However, when it comes to Unicode text, the two parts of the text do not align vertically: https://i.s ...

html css

Align content to the center column with a combination of right-alignment and left-al

This question poses an interesting challenge, but I will do my best to articulate it: I have a central column of content and I am looking to incorporate columns on the left and right of it that seamlessly "hug" the middle column. How can I consistently ce ...

html css

pure-react-carousel: every slide is in view

Issue I am encountering a problem where the non-active slides in my container are not being hidden properly. This results in all of the slides being visible when only one should be displayed. Additionally, some slides are rendering outside of the designate ...

javascript css reactjs pure-react-carousel

Error: The function dataTable is not recognized in this context

Utilizing jQuery datatable on a page with a slider has presented some challenges in my project. The master page contains various scripts at the end, such as: site.master.aspx <body> - - <script src="js/jquery.js"></script> ...

jquery asp.net datatables master-pages

Unable to show JSON data on the console

I am attempting to retrieve a large array of JSON objects from a remote server. The server-side is based on Node.js + redis. Here is my ajax query: $.ajax({ crossDomain: true, type:"GET", contentType: "application/json", url: "http://****. ...

javascript jquery ajax json

What is the best way to retain the href value following a link click event?

Is it possible for a user's clicked link on another site to be saved, so that the href value can be used in another function upon returning to the client's site? For example, if I click on the client's logo on another site and am redirected ...

javascript php jquery

Responsive Bootstrap 4 navigation bar featuring collapsible menu and various elements displayed on the right side

I have been struggling for quite some time to create a mobile menu using Bootstrap 4. My goal is to display the 3 brand names and the toggle button on the same row in the mobile menu. However, when I click the toggle button, the 3 brands end up below the c ...

html css twitter-bootstrap bootstrap-4

Having trouble with an onClick function not working on a .php webpage?

I recently developed a simple JavaScript script that dynamically loads an image based on user input in a text field (e.g., entering 'brick1' loads brick1.jpg). Although this works fine on a regular HTML page, I faced issues triggering the onClick ...

javascript php jquery html

Tips for effectively showcasing the updated text field value, rather than the default value, using the jQuery AJAX method

Here is my code, This is the form section, divided into two main jQuery actions: 1) First action:, When selecting 'Academic Year', 'Course', and 'Class', I used a jQuery ajax post method to load data from the database to ...

php jquery ajax

The Combination of Bootstrap 4 and the jQuery Validation Plugin

Currently, I am in the process of working on a project that requires me to implement a simple form validation on the client side. After some research, I decided to use the jQuery validation plugin. While experimenting with some basic functionalities, I enc ...

jquery html forms jquery-validate bootstrap-4

The combination of Django 1.5 and Ajax for CSRF protection is a

I am currently in the process of developing a web application that utilizes Ajax calls triggered by specific button clicks to update data within my models and display the updated information. Below is a snippet of my template: <html> <head> ...

jquery python ajax django

disable event listeners on the DOM

I am currently developing a web framework and focusing on integrating XSS prevention measures. I have successfully implemented data escaping for database storage, but now I am faced with the challenge of allowing users to save generated HTML without riskin ...

javascript jquery dom xss unbind

Struggles encountered when trying to send input values to controller through AJAX

I am currently facing an issue with my PHP CodeIgniter code. In the view, I am capturing input from a text field and using AJAX to pass this value to the controller through a GET request. The controller is supposed to then call a function in my model to fe ...

javascript php jquery ajax codeigniter

Loss of styling is observed with jQuery's html() function

Here is the HTML code I am working with: <div class="myList"> <select> <option value="1">Item1</option> <option value="2">Item2</option> </select> </div> Everything looks great in terms of CS ...

html css ajax

Loading JavaScript and CSS files in an EJS file using Node.js

Here is the structure of my folder: server.js app --routes.js views --ace-builds-master --\src-noconflict --ace.js --index.ejs The 'views' directory contains my ace editor components and my index.ejs file. I am trying to include ac ...

javascript css node.js express ejs

Does anyone know if it's achievable to include a background position within the img /asp:image tag?

Currently, I am endeavoring to enhance the loading speed of my webpage. The initial approach I decided to pursue is base64 conversion. On my homepage, there are a total of 18 small images that need to be loaded. Since base64 encoding increases image size ...

c#html css asp.net image

CSSer Q&A