The supermarket has used its database to target 150,000 professional couples aged 30 to 35 who don't have children.
The company believes that they are the most likely to use the because of their busy lifestyles.
The campaign, created by EHS Brann, comprises a mailpack designed to raise awareness of the website and get consumers to trial or continue to use the home delivery service.
The pack features a picture of a young couple relaxing at home, with one of them trying to persuade the other to go to the supermarket. The strapline "Let us go" suggests letting Tesco do the shopping instead.
The pack contains a step-by-step guide on using the site and includes details of Tesco's personal shopper service and delivery information. The mailing also contains a voucher offering customers £10 off their shopping when they spend £50 or more on groceries.
Last month, Tesco.com tied up with Lastminute.com to launch a travel .
The partnership means consumers can search for the best deals on flights, holidays, hotels and car hire through the site, while earning Clubcard points on all of their travel purchases.
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