--- title: "What Are UTMs and Sub IDs in Newsletter Ads?" url: "https://dupple.com/learn/what-is-utm-and-sub-id" description: "Learn how UTM parameters and provider-specific sub IDs label newsletter campaign traffic, with examples and measurement limitations." published: "2026-11-05" updated: "2026-11-05" llms_txt: "https://dupple.com/llms.txt" --- # What Are UTMs and Sub IDs in Newsletter Ads? Trusted by 790,000+ Techpresso subscribers · Editorial policy · How we make money Written by Dupple editorial team How our guides are researched . November 5, 2026 · Updated November 2026 6 min read UTM parameters are labels added to a destination URL so an analytics system can identify campaign traffic. A sub ID is an additional identifier defined by a particular tracking system, often used to distinguish a placement or partner. Agree on the fields, test the link and avoid assuming the two systems count identical events. *Published and updated 5 November 2026.* Dupple publishes Techpresso, AIpresso, Devshot, Cyberpresso, Finpresso and MarketingShot, and sells sponsorships in them. Dupple publishes this guide and sells newsletter placements. ## What a tagged link can contain A campaign URL can carry several labels after the destination path. [Google Analytics' campaign URL guidance](https://support.google.com/analytics/answer/10917952), checked on 5 November 2026, describes UTM parameters used to identify referral campaigns. The values are chosen by the advertiser; they are labels, not proof that a visitor belongs to a particular role or became a customer. For illustration, a destination such as `https://example.com/guide` could carry `utm_source=newsletter`, `utm_medium=email`, `utm_campaign=launch` and `utm_content=primary`. These are hypothetical labels, not a real Dupple campaign. They identify a source, medium, campaign and creative or placement label. Use a URL builder or encoding tool when needed and test the complete link before submitting creative. Table: example fields and the questions to agree on. *What a tagged link can contain: What Are UTMs and Sub IDs in Newsletter Ads?. Last updated November 2026.* | Field | Example label | What to check | | --- | --- | --- | | `utm_source` | `newsletter` | Does the label identify the publication or source consistently? | | `utm_medium` | `email` | Is the same medium convention used across comparable campaigns? | | `utm_campaign` | `launch` | Does it identify the intended campaign without exposing sensitive information? | | `utm_content` | `primary` | Does it distinguish the creative or placement when needed? | | Sub ID | Provider-specific value | What field name, scope and reporting meaning does the provider support? | A sub ID is not automatically a standard Google Analytics UTM field. Its name and interpretation depend on the publisher, network or tracking system. Ask the provider how it is passed, where it appears in reporting and whether it identifies a placement, partner, creative or another unit. Avoid placing personal information or secrets in URLs, which can be stored or shared by systems along the route. ## A first-party example of event units **Our data, verified November 2026:** In Dupple's post-signup offer records from 4 October to 3 November 2026, the technology segment with a known US location included 3,694 people who saw offers, 27,362 offer-card views and 1,358 recorded clicks, a 5.0% click rate per view. The [offer engagement CSV](https://dupple.com/data/dupple-offer-engagement-30d-2026-11-03.csv) records the aggregate and the [data page](https://dupple.com/advertise/data) explains the source. This dataset combines multiple offers and surfaces. The recorded clicks are not a unique-clicker, registration, lead or sales count, and people can generate multiple views or clicks. The location segment depends on available self-reported quiz information. Dupple's figures are not independently audited. The aggregate does not establish which UTM or sub ID was used and cannot predict a future campaign. The example illustrates why a label and an event are different things. A campaign parameter can help classify a visit in a system that receives it; the provider's card-view and click counts describe events under its own method. Do not assume the two reports will match without checking the population, timing and filtering. ## Plan the naming convention Choose stable values before the publisher receives the creative. Decide whether the source names the publication, network or partner; whether the campaign identifies a launch or offer; and whether the content field distinguishes the issue, placement or creative. Use consistent spelling and case so the same campaign does not appear under several unintended labels. Agree who creates the URL, who checks it and who owns the reporting. If a provider needs a sub ID, document the supported parameter and the allowed values. A sub ID can be useful for a publisher's internal report without being recognized by every analytics platform. Do not assume that a field with a familiar name will be carried through every redirect. Keep a shared record of the approved destination and labels with the issue date, placement and creative. The [newsletter buying guide](https://dupple.com/learn/how-to-buy-newsletter-ads) provides a checklist for documenting the proposal. If multiple sponsor links lead to the same page, decide how to distinguish them and whether the publisher's unique-click count is deduplicated across links. ## Test the full journey Open the final link from the publisher's preview on mobile and desktop. Check that redirects lead to the intended destination, that the parameters survive as expected and that the page or form works. Use non-personal test data for a form and confirm that the submission reaches the team responsible for follow-up. The preview should also show how the sponsorship is identified. If an analytics system is used, check that the test is recorded under the intended labels according to that system's settings. Filters, consent choices, blocked scripts and redirects can prevent an event from appearing or can change its classification. A successful browser visit does not guarantee that every analytics system recorded the same event. Ask the publisher how it counts sponsor clicks and how long the report collects activity. Dupple says its campaign reports include opens, clicks, click-through rate, benchmarks and corporate domains that engaged. Request a sample report for the proposed format and clarify whether clicks are unique or total. A tracking label does not itself define the provider's click metric. ## Compare publisher and advertiser reports A publisher may record a click on a tracked link, while an advertiser's analytics records a page view or later conversion. Those are different events observed in different systems. A person can click and leave before a page loads; consent or a blocked script can also affect the later record. Automated security checks and repeated activity may be filtered differently. Record the reporting period, event definition and filtering rules before comparing totals. If the publisher updates its report later, preserve the original cutoff and the updated date. Do not force the counts to match by changing labels after the fact. Investigate the journey and document any unresolved difference. A reported email open is not a verified ad view. Apple's [Mail privacy guidance](https://support.apple.com/guide/mail/change-privacy-settings-mlhlae4a4fe6/mac), checked on 5 November 2026, describes background downloading of remote content under privacy settings. The [CPM guide](https://dupple.com/learn/newsletter-cpm-explained) explains why delivered messages, reported opens and ad views are distinct units. ## Connect the labels to an outcome Define the action before launch: a resource visit, event registration and qualified sales inquiry are different outcomes. Decide what makes a response relevant, who will follow up and how long the team will wait before reviewing results. A UTM label can help identify a campaign in analytics; it does not make a click a qualified lead or a sale. The [sponsorship ROI guide](https://dupple.com/learn/measure-newsletter-sponsorship-roi) discusses connecting activity to a business objective. Compare the publisher's report with your own analytics while accounting for the systems' different definitions. Keep the offer, creative, placement and timing with the result; if these change together in a later test, the effect of one change cannot be isolated. The [Primary Ad guide](https://dupple.com/learn/what-is-a-primary-ad) and [dedicated-send guide](https://dupple.com/learn/what-is-a-dedicated-send) describe two newsletter formats. Dupple's [Primary Ad page](https://dupple.com/advertise/primary-ad) and [dedicated-send page](https://dupple.com/advertise/dedicated-send) describe its products. Ask which links and reporting apply to the actual booking rather than assuming every format has identical tracking. Before approving the campaign, have one person check the exact link in the final preview and another confirm the expected labels in the reporting plan. Dupple's [advertising page](https://dupple.com/advertise) describes its products, but the proposal should identify which placement and links are included. If an issue contains several calls to action, specify whether each has a separate content label and whether the publisher reports link-level or placement-level clicks. Keep the test result and approved URL with the campaign record so later changes can be identified. ## What we could not verify The cited Dupple offer aggregate does not establish UTM or sub ID usage, unique clickers, registrations or qualified leads, and its figures are not independently audited. Other providers' figures are self-reported unless an audit is identified. Tracking behavior depends on configuration, consent and redirects; we cannot verify identical event counts across systems or predict a campaign result. Open rates are not directly comparable across platforms without understanding their methods and filtering. ## FAQ **What is a UTM parameter?** It is a label added to a destination URL that can help an analytics system identify the source, medium, campaign or other campaign detail. **What is a sub ID?** It is an additional identifier defined by a particular provider or tracking system. Ask what its field name and value represent. **Is a sub ID automatically a UTM parameter?** No. It can be a separate provider-specific field and may not be recognized by every analytics system. **Will publisher clicks equal analytics visits?** Not necessarily. They are different events and can be affected by redirects, consent, timing and filtering. **Should personal information go in a tracking URL?** Avoid placing personal information or secrets in URLs. Agree on non-sensitive campaign labels and test the final link. Some offers on this page may be paid placements or contain affiliate links. 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