Excluded Fields

Some fields are absolutely required by a page to function correctly. However, these fields may also contain tracking elements. In such cases, we only have the choice between preventing tracking and a functioning service. Below we list all the fields not included in the official rules because they have caused problems in the past.

Site / Service Field Description
Google hl Required for the correct display of Google in different languages
Google gbv Required for Google, when visiting without JavaScript
Google client Required for asynchronous requests to the API (is filtered on Google Search)
Google stick Required for "People also search for" on Google search
Amazon s Required for sort search results by "Featured", "Price: Low to High", "Price: High to Low", "Avg. Customer Review" and "Newest Arrivals" (is only not filtered on Amazons search page)
Amazon psc Required to link to an article, which is available in different versions (e.g., color or size)
Amazon SubscriptionId Required for subscriptions
Amazon Search keywords Amazon search can loop without this field. See #55
Cloudflare __cf_chl_jschl_tk__ Require by Cloudflare to verify, that an user successfully passes a IUAM/JS Challenge or Captcha
Cloudflare __cf_chl_captcha_tk__ Require by Cloudflare to verify, that an user successfully passes a IUAM/JS Challenge or Captcha
backcountry.com skid Required to link to an article, which is available in different versions (e.g., color or size)
backcountry.com fskid Required to link to an article, which is available in different versions (e.g., color or size)
Adobe cid Used by Adobe for tracking, but also required by many websites for correct functioning. This rule has been temporarily removed until a whitelist feature is available
TikTok language Is no tracking and is required for the website, e.g., the profile view
Facebook comment_id Required for comments
Facebook fbid Required by many different functions. Used mainly as internal ID and not for external tracking
aliexpress pvid Required for filtering search results
taobao.com user_number_id Required for store frontpage (unique ID for specified store)
Twitter t Is required for URLs inside of Twitter mails (!21)

Last update: February 11, 2022
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