Majestic metrics change everyday as Majestic crawls websites. However, we only refresh the Majestic metrics once a week (after the first time that the domains are added to the system). Due to this some Majestic metrics might be off. However, metrics of good domains should not change very often - so if you find a domain that shows different metrics then its likely that the metrics for the domain are volatile (sudden loss of influx of links) and should be avoided.