What do (direct) and (none) mean?
A source tells you where a visit came from. A medium describes the type of traffic, such as email or unpaid search. In the source / medium column, you may see (direct) / (none). Here, (none) means there isn't an identified traffic medium. It doesn't mean nobody visited.
GA4 also groups sources into broader categories called channels. Direct is one of those channels. Treat it as a reporting category, rather than a list of people who deliberately typed your address.
Sources: Google Analytics: understanding (direct) / (none) · Google Analytics: traffic-source dimensions · Google Analytics: default channel definitions
Where can you find Direct traffic?
Open Reports > Acquisition > Traffic acquisition. Choose a complete date range, then select Session default channel group in the table's first-column menu. Find Direct and read the Sessions column. A session groups recorded activity into a visit. If the report is missing, an Editor or Administrator can add it to the navigation.
To see the underlying labels, change that menu to Session source / medium and find (direct) / (none). Write down the dates, column name, and session count so you can repeat the same check later.
Use the Session columns for this question. First user source describes how GA4 first acquired a user, which answers a different question. Also, source assignment can use earlier known campaign information, so every visit made by typing an address won't necessarily appear in the Direct row.
Sources: Google Analytics: Traffic acquisition report · Google Analytics: session and first-user sources
Why might a campaign visit appear as Direct?
A link in an email or a downloadable PDF may reach your site without usable source information. A redirect, which automatically sends someone from one address to another, can also drop campaign details. These are possible causes to check, not explanations you can prove from the Direct row.
Start with a link you control. Open the actual email or document and follow its link. Check the final address after any redirects. If you added campaign details, are they still there? Give your developer both the original link and the final address if something disappears.
Sources: Google Analytics: missing traffic information and document links
Label your next email link
UTM parameters are labels added to a link's address to describe a campaign. For a newsletter link to your service page, you could use https://example.com/services/?utm_source=newsletter&utm_medium=email&utm_campaign=autumn_services. This is a made-up address; replace it with your own page.
In that example, utm_source names the newsletter, utm_medium identifies email, and utm_campaign names the promotion. Keep a short list of agreed names and reuse them. Values are case-sensitive, so Newsletter and newsletter can create separate rows.
You can enter the values in Google's Campaign URL Builder instead of assembling the address yourself. Test the finished link before sending it. Later, check Traffic acquisition using Session source / medium for newsletter / email and Session campaign for autumn_services. UTM labels help identify recorded visits; they don't guarantee every email click becomes a recorded session.
Sources: Google Analytics: campaign URL labels and URL Builder
Check counts as well as percentages
Suppose one week has 1,000 recorded sessions, including 200 Direct sessions. Direct accounts for 20%. The following week has 500 sessions, with the same 200 Direct sessions. Its share is now 40%, even though the Direct count hasn't grown. These numbers are hypothetical.
Before celebrating or worrying about a bigger Direct share, compare its session count and the counts for other channels. A fall elsewhere can explain the percentage change. Use matching full weeks, keep the same filters, and note any campaign or website changes.
Avoid judging a change from today's figures. GA4 processing can take 24–48 hours, and report values can change while data is processed.
What should you do if Direct rises suddenly?
Note when the increase began. Compare that date with email sends, newly shared documents, and changes to redirects. Test one likely link first. If it lost its campaign labels, fix the link and check later visits before changing anything else.
Keep a simple record: the dates you compared, Direct sessions, total sessions, the link you tested, and what you changed. If you find no cause, leave the explanation open. A more accurate note is 'Direct sessions rose; source unknown' than 'More people remembered our brand.'
You can still check whether those recorded visits led to completed inquiries or sales, provided those actions are tracked correctly. Keep that business question separate from the question of where the visitors came from. You can follow up on an inquiry even when you don't know how the person found you.