What is a tracking code?
A tracking code simply refers to small snippets of code that are typically implemented in JavaScript. They are found in source code for apps and websites and are amazing for people like webmasters, marketers, and advertisers. Ultimately, tracking codes allow anyone who is interested to track user activity on their own apps and websites. However, when they are used, privacy policies need to be updated as they capture personal information about your customers. Tracking codes are usually added to the source code of the head-area of a web page for analysis. They send useful information across networks such as IP address, number of clicked URLs, and how long a site visit lasted. Other things they can track include:- Tracking events & campaigns
- Measuring engagement with written content
- Monitoring visitor page attention
- E-commerce analysis
- Advertisement clicks
Are there different types of tracking code?
There are 2 main ways to implement tracking codes. Here, we outline how each of these tracking codes is used and the benefits and pitfalls of each method.- Long Tracking Codes
Some of the benefits of using long tracking codes include:
- Improved data quality
- Improved segmentation
- Avoids FTP or API
Some of the pitfalls of using long tracking codes include:
- URL errors
- Readable to users & competitors
- Obfuscated Tracking Codes
Some of the other benefits of using obfuscated tracking codes include:
- Shorter URLs
- Being less error-prone
- Keeping commercial and marketing information private
Some of the pitfalls of using obfuscated tracking codes include:
- Personalized ad content is not as simple to set up (although it is still possible)
- Codes are harder to read which can make data governance more challenging
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Bottom line: Tracking code structures fall into a few core patterns, pixel-based, snippet-based, and tag manager containers, each suited to different data needs and technical setups. Choosing the right structure depends on how much control you need over data collection versus how much simplicity you want for your team. Most businesses get the best results by starting with a tag management system and layering additional tracking on top as needs grow.
Frequently asked questions
What is the difference between a tracking pixel and a tracking snippet?
A tracking pixel is a tiny, often invisible image that fires a request to a server when loaded, commonly used for ad platforms and basic event tracking. A tracking snippet is a small block of JavaScript code that can collect more detailed information and trigger custom events. Snippets generally offer more flexibility, while pixels are simpler and lighter weight.
Why would I use a tag manager instead of adding code directly to my site?
A tag manager lets you add, edit, and remove tracking codes without touching your site's source code every time. This reduces the risk of errors and speeds up how quickly marketing and analytics teams can deploy new tracking. It also centralizes all your tags in one place, making audits and troubleshooting much easier.
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Can I use multiple tracking code structures on the same website?
Yes, many websites combine a tag manager container with a few standalone pixels or snippets for specific platforms. The key is to organize and document each piece so nothing conflicts or duplicates data. Regular audits help keep the setup clean as tools and requirements change over time.
How do I know which tracking structure is right for my business?
Start by identifying what data you need to collect and which platforms you're using, such as ad networks, analytics tools, or CRM systems. If you expect to add or change tracking tools often, a tag manager is usually the more practical choice. Smaller sites with minimal tracking needs may do fine with a few direct snippets or pixels instead.


