Super Bowl XLII advertiser websites with the largest increases in market share of visits on Super Bowl Sunday 2008 were Hyundai, up 1450%, Paramount’s Ironman Movie, up 800% and GoDaddy.com, which increased 616%. Budlight.com and Budweiser.com increased 100% and 25 percent on Sunday from the previous day, respectively. Both the Budweiser and Bud Light brands were advertised multiple times during the game without the inclusion of a URL. Traffic to beverage websites such as Pepsi.com and Coca-Cola.com increased 76% and 33%, respectively.
| Advertiser | Domain | Sunday % Change | Monday % Change |
| Hyundai | www.hyundaigenesis.com | 1450% | -55% |
| Paramount | www.ironmanmovie.com | 800% | -33% |
| GoDaddy | www.godaddy.com | 616% | -30% |
| Audi | www.truthinengineering.com | 433% | NA |
| SalesGenie | www.salesgenie.com | 333% | 15% |
| Office of National Drug Control Policy | www.theantidrug.com | 200% | 0% |
| New Line Cinema | www.semipromovie.com | 200% | 133% |
| Gatorade | www.gatorade.com | 200% | -33% |
| Under Armour | www.underarmour.com | 156% | -22% |
| Bud Light | www.budlight.com | 100% | 0% |
| Tide | www.mytalkingstain.com | 57% | NA |
| GMC | www.gmc.com | 39% | -25% |
| Coke | www.coca-cola.com | 33% | 25% |
| CareerBuilder | www.careerbuilder.com | 27% | 39% |
| Budweiser | www.budweiser.com | 25% | 20% |
| Planters | www.planters.com | 15% | 0% |
| Dell | www.dell.com | 8% | 9% |
| Cars.com | www.cars.com | 2% | 5% |
| Garmin | www.garmin.com | 0% | 22% |
| T-Mobile | www.t-mobile.com | -1% | -7% |
| Victoria’s Secret | www.victoriassecret.com | -2% | 19% |
| Toyota | www.toyota.com | -10% | -3% |
| Toshiba | www.toshibadirect.com | -15% | 32% |
| Disney | www.disney.com | -17% | -34% |
| Taco Bell | www.tacobell.com | -20% | -25% |
| eTrade | www.etrade.com | -27% | 175% |
| Sunsilk | www.lifecantwait.com | -29% | 100% |
| FedEx | www.fedex.com | -31% | 136% |
| 20th Century Fox | www.jumperthemovie.com | -50% | -50% |
| Claritin | www.claritin.com | NA | 100% |
| Vitamin Water | www.vitaminwater.com | NA | -50% |
| AMP | www.ampenergy.com | NA | 200% |
| Source: Hitwise | |||