The problem primarily affected the site's main start page, Excite.com. Other parts of the site, including its email, search and news services, were accessible if people went directly to the Web addresses where they are hosted.
Since midmorning Pacific time, the site has been accessible intermittently. Personalization features on Excite members' personal home pages, such as stock quotes, weather and bookmarks, were also temporarily down.
"A load balancer that failed prevented proper communication between various servers," said an Excite@Home representative.
One reader wrote in an email that the site has been down since at least 3 a.m. PT.
Excite.com is the Web portal site for high-speed cable Internet service provider Excite@Home.