[teej]

How old is "old", and what do you need it for? I've written code to parse the utmz cookie and separate code to recreate the whole organic/referral/utm attribution model in GA using first party log data. The only major drawback AFAIK is that adwords utm parameters are obfuscated and Google doesn't provide a way to resolve glclids to their campaign's utm params.

[jgalt212]

it's dated, but still the best public resource on de-obfuscating gclid's.

https://deedpolloffice.com/blog/articles/decoding-gclid-para...