See whether a page change you’ve already made worked, using your own Google Search Console data.
You rewrote a title tag, refreshed the content or added internal links a few weeks ago. Did it make a difference? The back test compares the page’s Google Search Console performance before the change with its performance after, so you can answer with data instead of a hunch.


The free back test runs the same before-and-after analysis as a paid SEOTesting time-based SEO test.
The back test only asks Google for read-only access, so it can’t change anything in your Search Console account.
An SEO back test measures a change you have already made. You give the tool a page URL and the date the page changed, and it compares the page’s Google Search Console performance for the weeks before that date with the same number of weeks after it. It is the same before-and-after method as a time-based SEO test, run on a change from the past.
Yes. The back test is free and you don’t need an SEOTesting account or a credit card. All you need is a Google account with access to the site’s Search Console property. Connect it, enter the page and the change date, and the results appear on the page.
You can run one as soon as Search Console has data for the days after the change, which is usually about three days later. If the after period hasn’t fully happened yet, the tool shortens it and tells you. For a fair comparison, wait until the full 2, 4, 6 or 8 weeks have passed, then run it again.
Search Console keeps around 16 months of data, so the before period has to start within that window. A change made a year ago with 8 weeks either side works. A change from two years ago does not, because Google no longer has the before data to compare against.
The tool runs a Welch’s t-test on the page’s daily clicks in the two periods and reports the p-value. A low p-value means the difference is unlikely to be random variation. The test needs at least 7 days with Search Console data in both periods. If there isn’t enough data, the tool explains why instead of showing a number.
The tool asks for read-only access. Your Google token is held in an encrypted cookie in your browser and is never written to our database. No test is saved. The results are calculated when you run the test and shown in your browser tab. You can click Disconnect Google at any time to clear the cookie.
The free back test looks backwards at one page at a time and doesn’t keep the results. With SEOTesting, you log a change the day you ship it, and it measures the change from then on, saves the result and emails you when the test finishes. It also adds group tests, SEO split tests and a monthly report written to forward. Plans start at $50 a month for one site, with a 14-day free trial and no card needed.

The free test answers you. SEOTesting answers whoever asks you whether SEO is working: a monthly report in plain English, written to forward.
Log a change the day you ship it, and SEOTesting measures it from then on and emails you when the test finishes. Group tests, split tests and annotations are included.
$50 a month for one site, as many people as you like
Free for 14 days, no card needed
Try free for 14 days
“The automation gained from SEOTesting didn’t just save time – it transformed our approach to SEO entirely. It turned weeks of manual work into hours of actionable insights driving measurable, bottom-line results for our clients.”
Josh Willett, Digital Marketing Consultant

“The most significant impact of using SEOTesting has been stakeholder buy-in. We can now use data from tests to demonstrate the impact of SEO changes, enabling us to deliver SEO projects at scale.”
Thomas Chetwyn, BT Group

“Clients are impressed that we are able to quantify and forecast SEO results prior to full-scale implementation. We were immediately able to action recommendations found from the tests with a much greater degree of certainty around results!”
Jack Chambers-Ward, Candour

“Using SEOTesting, we now have ready-made graphs and statistical data that can be used to tell compelling stories about the work we do. Budget buy-in from management is now easier. Setting up a test takes a couple of minutes and saves hours of reporting later on.”
Ivan Stamenković, Better Collective
Read all our customer case studies, and check out our G2 and Capterra reviews.