How can increase my domain value?

[sinelogix]

My website 2 year old and i am working full seo every month's. Last day's, I found my domain name value loss. How can i my domain value maintain. Please help me.....

[HanksJ]

what you meant by "domain name value" ?
if you meant pagerank you need to get links from high pr and tr websites/pages.
if you meant you lost positions on search resaults its somthing else...