[FEATURE] Add utm_source=claude-code to all urls
Preflight Checklist
- [x] I have searched existing requests and this feature hasn't been requested yet
- [x] This is a single feature request (not multiple features)
Problem Statement
Website owners don't know how much traffic they are getting from Anthropics' applications. As more people are using AI for answering questions there is less search traffic and use of the browser and more coming from links within AI applications such as Claude Code. Adding a utm_source param would help publishers and website owners to understand where their traffic is coming from. For Anthropic this would also help those websites understand the value that Anthropic products are providing.
Proposed Solution
Add a utm_source param to all urls that claude code is providing to the user.
Some suggested params to send:
- utm_source=claude-code
- utm_source=claude-cowork
- utm_source=claude-mobile
Alternative Solutions
utm_source is a better choice than the http referral information because referral is often blocked by browsers and it is not available when going from an application into a browser.
The other utm_* params may also be useful, but start to run into privacy issues: https://en.wikipedia.org/wiki/UTM_parameters
Priority
Medium - Would be very helpful
Feature Category
Other
Use Case Example
- A user asking claude to help me research and buy a new car
- A number of links are given to the user to look at the company webpages on cars
- The user clicks those links and explores the webpages
- The car company examines their analytics and can then attribute some portion of car sales to users going through Claude.
Additional Context
I work on https://www.parse.ly/ and https://jetpack.com/stats/ which run on millions of websites.