Using Google Tag Manager (GTM) to manage your tracking codes brings significant benefits, not only in terms of management, but also in improving the technical performance of your website and its organic search engine optimization (SEO).
1. Centralization of tracking codes for better management
• Before GTM: Tracking tags (e.g. Google Ads, Facebook Pixel, LinkedIn Insight Tag) were directly integrated into the site source code, which resulted in:
• Complex management in the event of an update or replacement.
• Increased risk of errors or duplications.
• With GTM: All tracking codes are centralized in a single interface. You can:
• Add, modify or delete tags without touching the source code.
• Save time and reduce the risk of technical errors.
2. Improving the technical performance of the site
Tracking codes embedded directly in the source code can slow down your site by:
• Increasing loading time (affects Core Web Vitals).
• Multiplying unnecessary network requests.
With GTM:
• Tags are loaded asynchronously, meaning they do not interfere with the main loading of the page.
• You can configure conditional loading of tags to avoid running unnecessary scripts (eg: Facebook pixel only on specific pages).
• This reduces the impact of tags on First Contentful Paint (FCP) and improves your Core Web Vitals scores, essential metrics for SEO.
3. Compliance with SEO best practices
Google favors fast and well-structured sites in its search results. Using GTM allows you to:
• Avoid tag redundancies: GTM ensures that no tags are duplicated, which can create conflicts or errors in the collected data.
• Optimize page rendering: Fewer scripts embedded directly in the code means a lighter HTML file, improving crawling and indexing by Google robots.
• Meet privacy requirements: GTM facilitates cookie management and compliance with GDPR and Law 25, important aspects for maintaining the credibility and ranking of your site.
4. Simplified monitoring and troubleshooting
With GTM you can:
• Test your tags before publishing them using Preview mode.
• Quickly debug errors without having to modify your site’s code.
• Track the impact of tags on performance in real time.
5. Continuous optimization for effective SEO
Using GTM in a performance-driven technical strategy allows you to:
• Reduce overall loading time: Thus improving rankings in search results.
• Prioritize critical scripts: By delaying non-essential tags, you promote fast loading of visible content.
• Create SEO-specific tags: GTM can be used to implement tools like schema.org for structured data or configure SEO events (scroll tracking, clicks on internal links).
By centralizing and optimizing tracking codes with GTM, Bofu not only helps you improve data management and analysis, but also strengthens your site's performance and SEO positioning. It is an essential solution for a technical and effective marketing strategy.