Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
A mosquito's sense of smell is about 10,000 times better than yours and they are able to locate humans because they detect the carbon dioxide given off by us. Mosquito Barrier masks the carbon dioxide odor. If they can't find you, they can't bite you and they seek nourishment elsewhere.