utm_source is the specific platform or website sending traffic — for example "google" or "facebook" or "newsletter". utm_medium is the category of marketing channel — for example "cpc" for paid search, "email" for email campaigns, or "organic-social" for unpaid social posts.

Yes. This tool generates fully GA4-compatible UTM URLs. In GA4, go to Reports → Acquisition → Traffic Acquisition. You can see results broken down by Source/Medium, Campaign, and Content. UTM tracking works the same way in GA4 as in Universal Analytics, but the report location is different.

UTM parameters do not directly affect your Google search rankings. However, use canonical tags on pages that might be indexed with UTM parameters to avoid duplicate content issues. For paid campaigns sending traffic to landing pages, this is rarely a concern since landing pages are usually not indexed.

For Google Ads, the standard convention is utm_source=google, utm_medium=cpc, utm_campaign=[your campaign name]. For keyword-level tracking, add utm_term={keyword} (Google automatically replaces this with the actual search term). For ad-level A/B testing, add utm_content=[ad-name]. This tool's Google Ads preset sets these automatically.