You send a newsletter, post on social media and promote the same offer through a partner. Visits appear in your web analytics tool, but which activity brought them in? UTM parameters add context to the links you share, making traffic sources easier to compare. To get useful insights, you need consistent naming, a few practical checks and realistic expectations about what the data can tell you.
1. What UTM parameters are and what they tell you
UTM parameters are labels added to the query string of a URL, after the question mark. The destination page usually stays the same, but a compatible analytics tool can read the labels and associate them with the visit. They do not set up tracking on their own: data collection must already be configured and respect the applicable consent choices.
- utm_source identifies the source, such as newsletter, linkedin or the name of a partner publication.
- utm_medium describes the channel, such as email, social, paid_social or cpc, depending on your convention and analytics tool.
- utm_campaign groups links belonging to the same campaign, such as guide_launch.
- utm_content distinguishes link variations, such as main_button, banner or closing_text.
- utm_term is often used for terms in paid campaigns; leave it out unless you have a clear reason to use it.
For a straightforward setup, start with source, medium and campaign. Add more detail only when it answers a specific question. UTM parameters do not replace advertising platform settings or the automatic tagging used by some integrations.
2. Set a simple naming convention
The most common challenge is not building the link. It is using different names for the same thing. “Newsletter”, “newsletter” and “e-mail” may end up in separate categories or make reporting harder. Agree on your rules before sharing your first campaign links.
- Use lowercase letters for every value.
- Avoid spaces and accented characters in labels; separate words with underscores.
- Keep one consistent name for each source and medium.
- Choose campaign names that will still make sense after the promotion ends.
- Use the same utm_campaign value across all channels supporting the same initiative.
For example, your campaign could be wordpress_guide_autumn, with newsletter as the source and email as the medium. For an organic LinkedIn post, keep the campaign name and change the source to linkedin and the medium to social. For paid promotion, choose a separate medium that works with your analytics tool's channel rules.
Maintain a shared register containing the destination page, source, medium, campaign, variation and final URL. A simple document is enough to begin with. Check your analytics platform's channel grouping rules too: a label that makes sense to you is not necessarily recognised automatically as the channel you intended.
3. Tag newsletters, social posts and partner campaigns
Newsletters: distinguish link positions
For a newsletter promoting a guide, an illustrative URL might look like this:
https://example.org/guide?utm_source=newsletter&utm_medium=email&utm_campaign=wordpress_guide_autumn&utm_content=main_button
If the same guide is also linked at the end of the email, change only utm_content to closing_text. This lets you compare link positions without unnecessarily splitting the campaign. However, this comparison is not a controlled experiment: placement and surrounding content influence who clicks.
Social media: separate the platform from the promotion type
For an organic LinkedIn post, you could use utm_source=linkedin and utm_medium=social. For an advert, paid_social may be suitable if your analytics platform recognises it or you have configured the relevant grouping. Keep the campaign name unchanged when the objective and initiative remain the same.
Partnerships and other distribution channels
In a partner's newsletter, the source could be the publication name and the medium email. For a QR code on printed material, you might define leaflet as the source and qr as the medium, documenting that category in your reports. The aim is to identify the distribution activity, not create a separate label for every person.
4. Check your links and make meaningful comparisons
Before publishing, check both the URL and the journey to the final page. If your destination runs on WordPress, choosing WordPress hosting concerns the operation of the website; link tagging and analytics configuration remain separate tasks.
- Open the complete link. Confirm that it leads to the intended page and that the page works with the added parameters.
- Check the syntax. The first parameter starts with ?, and subsequent parameters are separated by &. If the URL already contains parameters, do not add a second question mark.
- Check redirects. They can remove tags, so confirm that the values reach the destination and are picked up by your analytics tool.
- Test data collection. Use the verification features available in your analytics platform, with an appropriate consent configuration.
- Record publication details. Note where and when each variation was shared.
In your reports, compare the same date range and consistently defined metrics, such as sessions, relevant interactions or configured conversions. Do not mix reports about a user's first source, a session's source and conversion attribution without checking their definitions. They answer different questions.
Traffic volume is not the only useful measure. One source may bring fewer visits but more relevant enquiries. Separately, review the landing page experience and the resources your website needs. Web hosting provides infrastructure for the destination, rather than a method of attributing results.
5. Understand attribution limits and protect personal data
UTM parameters describe the link someone followed, not their entire decision-making journey. A person might discover your offer in a newsletter and return later through a search engine. Another visitor could copy a tagged link and send it to a friend, keeping the original source labels in the URL.
Declined consent, blocked scripts, switching devices and removed parameters can reduce or change the data available. Platforms may also use different attribution models and windows. As a result, clicks reported by a social network should not be expected to match sessions in your analytics tool exactly.
Do not add UTMs to ordinary internal links. Depending on the tool, this can distort how sources or attribution are interpreted. To understand navigation between your own pages, track internal events and interactions rather than introducing a new acquisition campaign.
Keep personal data out of URLs. Avoid names, email addresses, phone numbers and identifiers that can be linked to an individual. URLs can appear in browser history, server logs, screenshots, shared links and external tools. Encoding an email address does not automatically make it anonymous. Use UTM labels to describe the campaign, not the recipient.
6. Start with one campaign you can follow clearly
Choose a page, agree on the source, medium and campaign name, then build variations for your newsletter and social posts. Test the links, maintain your register and compare results using the same definitions. Expand your tagging scheme only when a genuine campaign measurement need arises.
If you have questions about the services supporting your website, visit the frequently asked questions. For analytics, keep the principle simple: consistent labels, no personal data and conclusions that reflect the limits of the available evidence.
