Prove which SEO changes actually move the needle
Stop shipping title tag rewrites and hoping. Run a real before/after test on real GSC data — with an optional control group so you're not fooled by seasonality or a Google update.
Homepage Hero Rewrite
4-week testControl Group
Unrelated pages, same period
Why this matters
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No more "I think that helped"
Get an actual baseline-vs-test comparison on clicks, impressions, CTR, and position — scoped to exactly the queries or pages you changed.
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Rule out the noise
An optional control group of untouched pages tells you whether a lift is your change — or just a Google update lifting everyone.
Target Keywords
How it works
Set it up in minutes. Let real search data settle the argument.
Define the scope
Name your test, pick a start date and duration, then scope it to specific queries, pages, countries, or devices.
Add a control group
Optionally flag a set of similar pages you're not changing, so you have a baseline for "what would've happened anyway."
Read the results
Once the test period ends, compare baseline vs. test on clicks, impressions, CTR, and position — side by side.
The method serious SEO tools actually use
Google Search Console has no concept of "show version A to half your visitors." So real SEO testing tools — the kind agencies pay thousands a month for — use time-based causal impact testing instead: compare a baseline period to a test period, and use a control group to net out everything unrelated to your change.
Keep Omni gives you the same methodology on your own GSC data, at no cost to try.
Once you've proven a change works, check Change Monitoring to make sure nobody quietly reverts it later.
Frequently Asked Questions
Is this a real A/B test with split traffic?
It's a time-based test: you pick a baseline period (before your change) and a test period (after), scoped to specific queries, pages, countries, or devices. Google Search Console doesn't support serving two page versions to split traffic, so this is the standard method serious SEO testing tools use instead.
How do you rule out seasonality or algorithm updates?
Turn on the optional control group: a set of similar pages you didn't change. If your test pages move but your control group doesn't, that's a much stronger signal the change itself worked — not a Google update or a seasonal swing.
How long should a test run?
You choose: 2 weeks for a quick read, 4 weeks (recommended) for most title/meta changes, or 6-8 weeks for content or structural changes that take longer to fully reflect in rankings.
Stop guessing. Start testing.
Run your first baseline-vs-test comparison on real Search Console data, free.
Run Your First Test