Launch day produces a traffic spike and, for most people, no usable information. A few hours of setup beforehand turns it into the most informative day your product will have for months.
Before you post anything
Build and store every tagged link. All of them, at once, in one note. Building links ad hoc while posting is where inconsistent casing gets in, and inconsistent casing cannot be fixed retroactively.
Free toolUTM BuilderBuild tagged campaign URLs with consistent utm_source, utm_medium and utm_campaign values so your launch traffic is actually attributable.Define one conversion event. Signup, or trial start, or whatever the real goal is. One event. Traffic without a conversion denominator tells you nothing about quality.
Check your analytics actually fires. Load your own site in a private window and confirm the event arrives. The number of launches that produce no data because a script was blocked by a consent banner is not small.
Set a baseline. Note yesterday's sessions and signups. Without it you cannot tell what the launch added.
Check the page you are sending people to. Load it on a phone, on mobile data. Launch traffic is heavily mobile, and a hero image that takes six seconds costs you most of it.
What to actually measure
Three numbers, in this order:
1. Sessions by source. Which post sent people. Straightforward, and the only one most people look at.
2. Conversion rate by source. Sessions to your one event, split by source. This is the number that matters, and it is almost always inverted from volume.
3. Sessions still attributed to direct. If this is large, you missed tags, or something stripped them. Some mobile apps strip query strings on outbound links, so a chunk of direct is normal - but half your traffic in direct means a tagging failure.
Ignore bounce rate, time on page, and pages per session on launch day. A spike of curious visitors distorts all three and they tell you nothing actionable.
The finding you should expect
The channel that sends the most traffic almost always converts the worst.
A big aggregator sends a thousand curious visitors who convert at half a percent. A newsletter with four hundred subscribers sends eighty people who convert at fifteen percent. The second one is worth more, and you would never know from a traffic chart.
This matters because it tells you where to spend the next six months. Launch day is not a growth channel - it is one day. Its real value is telling you which audience actually wants the product.
Offline and QR
If you are launching at an event or with print, generate a QR code pointing at a tagged URL. It is the only way that traffic gets attributed at all.
Free toolQR Code GeneratorGenerate a QR code for any URL or text with adjustable error correction, and download it as a high-resolution PNG. No signup, no tracking, no expiry.Use utm_medium=qr and a source naming the specific placement, so two posters in different rooms are distinguishable.
The week after
Launch traffic decays fast - typically 80% of it in the first 48 hours. What you want from the week after:
Which source sent people who came back. Returning visitors from a source are worth far more than first sessions.
What people searched for on your site. If you have site search, the queries from launch week are the clearest product feedback you will get all quarter.
Where they dropped off. If a thousand people hit the signup page and forty finished, the problem is the form, not the traffic.
Which pages they read besides the landing page. Tells you what they needed to know before deciding.
Write down what you expect before launch day: which source will send the most, and which will convert best. Being wrong about the second one is the most useful thing you will learn.
Launch it where the numbers are checked
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