That usually means sales on DNA tests.
Ancestry.com recently announced it is honoring DNA Day with a 20 percent off sale on its AncestryDNA test until April 27, 2015. That means the test will cost $79 instead of $99. The price does not include shipping which costs about $10 per test.
You can find the sale at a special DNA sale page. Remember to make sure you see the sale price on the webpage before you purchase. (The sale price is not always reflected on the normal Ancestry.com store and DNA pages.) You may need to refresh your browser.