AdWords Weighted Ad Tester

1. Run an AdWords Ad report with the following columns in order: Time Period, Campaign, Ad Group, Headline, Description Line 1, Description Line 2, Display URL, Ad ID, Ad Status, Destination URL, Number of trials, Number of successes.
   In the default AdWords Ad Report the columns will appear in the correct order when they are enabled.
   To optimise the CTR the number of trials is the number of impressions and the number of successes is the number of clicks. To optimise the conversion rate, the number of trials is the number of clicks and the number of successes is the number of conversions.
2. Export the report as a .tsv file or open it in Excel
3. Copy and paste the whole report into the form below
4. Adjust the strength of the test if you want to. The default value of 0.95 means that if there is a 95% chance of ad A being better than ad B then ad B will be paused.
5. Enter a value for the "half-life" of a trial. After this many time periods (day, week, month etc. depends on type of report run) the influence of the trials and sucesses will have halved

Ad Data:

Strength:

Half-life:

For information about how this tool works see the ad tester maths page.
For caveats and problems see weaknesses of my ad testing tools.