URL: http://ccg.vital-it.ch/tagger/tagscan.html
Current status:

Has been up since 16/5/12.
Embrace tests: not tested.
Description: TagScan allows searching for exact or near-exact matches between oligonucleotide queries of up to 60 bases and sequence databases comprising entire genomes or mRNA reference sequences. The smallest query allowed is 10 nucleotides long.