How can I dynamically update the meta title and description on a Webflow site using JavaScript? I want to display the updated information from a collection list on the page, but I am unsure if this will affect SEO.

You can dynamically update the meta title and meta description on a Webflow site using JavaScript by selecting and modifying the <title> and <meta name="description"> elements. However, these changes will not affect SEO since search engines primarily index the initial HTML without JavaScript modifications.

1. Add a Custom JavaScript Snippet

• Place the following script in the Before tag section of your Webflow Page Settings or inside an Embed element on the page.

document.addEventListener("DOMContentLoaded", function () {    // Fetch dynamic content from a Collection List item    let dynamicTitle = document.querySelector(".dynamic-title")?.textContent;    let dynamicDescription = document.querySelector(".dynamic-description")?.textContent;    // Update the meta title    if (dynamicTitle) {        document.title = dynamicTitle;    }    // Update the meta description    let metaDescriptionTag = document.querySelector("meta[name='description']");    if (metaDescriptionTag && dynamicDescription) {        metaDescriptionTag.setAttribute("content", dynamicDescription);    }});

• Replace .dynamic-title and .dynamic-description with the actual class names used in your Collection List.

2. Considerations for SEO

• Changes made via JavaScript do not modify the source HTML, meaning search engines won't index the updated metadata.
• If SEO is crucial, use Webflow’s built-in dynamic SEO settings under Page Settings > SEO Settings.
• For better SEO impact, consider server-side rendering (SSR) or using a CMS that allows meta tag updates directly.

Summary

You can use JavaScript to dynamically update the meta title and meta description, but this doesn't impact SEO because search engines index the original static content. If SEO is a concern, configure meta tags directly in Webflow’s SEO Settings.