Complex sentence: Website owners were also presented with the opportunity to claim their site, which gave them the opportunity to communicate with their website's users, and could request a review of their site's reputation score or add a custom description of their site to the scorecard.
Split into simpler sentences: Website owners were also presented with the opportunity to claim their site, which gave them the opportunity to communicate with their website's users. Site owners could request a review of their site's reputation score or add a custom description of their site to the scorecard.