Can anyone post some links where you can punch in the serial number from a signed item to see if it's in the database?

I'm looking at a piece that only seems to have the sticker on the item. No mention of who authenticated the auto.

I punched the number into the PSA/DNA Cert Verification box, but no luck.

http://www.psadna.com/verify.chtml

I took a quick glance at Steiner and UDA, but couldn't spot any place where I could check the number. Do they have the same deal online where you can check? Not the most efficient way of checking, but it's all I have to go on.

Thanks.