A campaign detail click ID.
aclid: undefined | string;
Used for keyword analysis to identify a specific product promotion or strategic campaign.
Used for A/B testing and content-targeted ads to differentiate ads or links that point to the same URL.
content: undefined | string;
cp1: undefined | string;
Used to identify a medium such as email or cost-per-click (cpc).
Used to identify a search engine, newsletter, or other source.
Used with paid search to supply the keywords for ads.
term: undefined | string;