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Third Party Cookies Blocked - What does this effect?

Visitor ✭ ✭ ✭
# 1
Visitor ✭ ✭ ✭

I'm just looking for some absolute clarification on this topic. 

 

Apple and Firefox block third party cookies by default, how does this effect AdWords tracking?

 

I understand that if you are tracking goals in Analytics and importing them into AdWords this is fine; but what about if you are deploying AdWords conversion tracking directly on key pages of the website?

 

Is there anything else aside from conversion tracking which can be affected?

1 Expert replyverified_user

Re: Third Party Cookies Blocked - What does this effect?

Top Contributor
# 2
Top Contributor
Hi Karl R,

The AdWords conversion tracking code works with a 3rd party cookie. If the browser is set to block 3rd party cookies, it won't work.

Analytics all works with regular cookies for the domain, so it will be fine.

Best of Luck!

Pete
petebardo -- Deadhead doing AdWords

Re: Third Party Cookies Blocked - What does this effect?

Visitor ✭ ✭ ✭
# 3
Visitor ✭ ✭ ✭
Wow, so people using Apple products and Firefox wont be tracked for AdWords conversions. This will cause huge discrepancies, especially for mobile traffic. I wonder if everyone is fully aware of this. Are there any others who block third party cookies by default?

Re: Third Party Cookies Blocked - What does this effect?

Follower ✭ ✭ ☆
# 4
Follower ✭ ✭ ☆
EU law blocks 90% of them. starting a thread on this.

Re: Third Party Cookies Blocked - What does this effect?

Follower ✭ ☆ ☆
# 5
Follower ✭ ☆ ☆

Can anyone find anything authoritative on this topic? Anything from Google?

 

Searching Google AdWords help for "Safari" or "3rd party cookie" only brings up these community threads. 

 

If it's true that AdWords conversions will not be measured with 3rd party cookies disabled, I'm surprised that:

 

A) It's not mentioned anywhere on the AdWords help site

B) "Use of first party cookie" isn't listed as a benefit of Google Analytics conversion tracking on this help page https://support.google.com/adwords/answer/2375435