MDI Persist Query String

Description

MDI Persist Query String automatically captures and persists specific URL parameters (like UTM tags and campaign data) across multiple page visits. This is essential for accurate marketing attribution and analytics tracking.

Persistent UTM Parameters for Accurate Marketing Attribution
Are You Missing Attribution On Your Marketing Campaigns?
You launch an ad campaign, post on social media, send an email blast, or invest in a press release. Traffic starts coming in—but when you look at your analytics or CRM, attribution is incomplete or missing altogether. Visitors arrive on your site with UTM parameters in the URL, click to another page, fill out a form, and the original source data disappears. This leads to unclear reporting, unreliable conversion data, and marketing decisions based on guesses instead of facts. This plugin solves that problem.

What This Plugin Does
Persistent UTM Parameters ensures that UTM parameters—and other query parameters you define—persist as users navigate your website.
If a visitor arrives on your site with tracking parameters in the URL, those parameters are automatically carried forward as they move from page to page. When the visitor eventually submits a form, requests a quote, or reaches a key conversion point, the original attribution data is still intact.
This allows you to correctly attribute form submissions, lead sources, campaign performance, content engagement, and conversions with confidence.

Why This Matters
Without persistent parameters, attribution is often lost after the first page view, forms submit without source data, analytics platforms misclassify traffic, and even high-cost campaigns can appear ineffective.
With persistent parameters in place, source, medium, and campaign data remain accurate throughout the user journey. Marketing ROI becomes measurable, CRM records receive clean attribution data, and analytics reflect how users actually discover, engage with, and convert on your site.
This is especially important for marketing teams, agencies, lead-generation websites, SaaS companies, service businesses, and anyone who relies on accurate attribution to make informed decisions.

Fully Customizable Parameter Support
While UTMs are the most common use case, this plugin is not limited to them. You can choose which query parameters should persist, include custom parameters beyond standard UTMs, and adapt the plugin to your existing analytics, CRM, or form setup. This flexibility supports advanced marketing stacks, custom tracking needs, and non-standard attribution models.

Simple Setup — Expert Help Available
The plugin is designed to work out of the box with minimal configuration. For more advanced setups—such as passing parameters into specific form fields, CRMs, or analytics platforms—expert help is available to ensure everything is configured correctly.

GET SUPPORT
https://mediuminteractive.com/contact

Installation

  1. Upload the plugin folder to /wp-content/plugins/
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. The plugin works automatically – no configuration needed

FAQ

What parameters are tracked by default?

The plugin tracks: campaign, network, keyword, device, placement, utm_source, utm_medium, and utm_campaign.

Can I customize which parameters to track?

Yes, developers can customize the tracked parameters by modifying the MDIPQS_PERSIST_PARAMETERS constant in the plugin file.

Does this plugin collect personal data?

No, the plugin only stores marketing parameters in cookies. It does not collect or store any personal information.

Will this affect my site performance?

No, the plugin is extremely lightweight and only runs on the frontend for non-admin users.

Reviews

There are no reviews for this plugin.

Contributors & Developers

“MDI Persist Query String” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

1.0.0

  • Initial release
  • HTTP referrer tracking support
  • Cookie-based persistence
  • UTM parameter support
  • Custom campaign parameter support