Walmart's product URLs carry some of the most aggressive tracking tails on the web. A link copied from a product carousel might look like this:

https://www.walmart.com/ip/Sparkle-Paper-Towels/656274757?athAsset=eyJhdG...&athena=true&athbdg=L1300

Or, from a filtered search:

.../ip/Honey-Maid-Graham-Crackers/10292699?fulfillmentIntent=In-store&filters=...&classType=REGULAR&athbdg=L1300

What each parameter is doing

• athAsset, athena, athbdg, athcpid, athstid, athancid, athrk — Walmart's internal "Athena" recommendation and attribution system. They tell Walmart where in the site the click happened (which carousel, which badge, which test variant).
• fulfillmentIntent — whether you were browsing "In-store", "Shipping", or "Pickup" when you clicked.
• filters — a URL-encoded JSON blob of the filters that were active on the previous page.
• classType — internal product classification tag.

None of these change the product you land on. Strip them and you get a clean product URL that still resolves correctly:

https://www.walmart.com/ip/Honey-Maid-Honey-Graham-Crackers-14-4-oz/10292699

Why so much tracking?

Walmart runs constant A/B tests on ranking, badges ("Best Seller", "Rollback"), and homepage modules. The ath* parameters let their analytics team measure which modules and badges actually convert. That's useful to Walmart — but it's noise for you.

Same trick works on Walmart.ca

Walmart.ca uses the same parameter names. SlinkyLinky's cleaning rules are domain-agnostic, so a link like walmart.ca/en/ip/.../656274757?athAsset=...&athbdg=L1300 is cleaned exactly the same way.