Landing Page Data Lookup?

[SanfordWhiteman]

Also, since the values (store names) are presumably public, you could obfuscate the object keys (IDs) by using a hash of the ID for the lookup, if that matters.

So someone would see that {seemingly_random_id_1} goes to the Toledo store and {seemingly_random_id_2} goes to the LA store, but they couldn't figure out the original query param.

[SanfordWhiteman]

There is also a 3rd way, possibly the easiest of all if your lookup table is small (the definition of "small" depends on your taste for using the Marketo LP UI, though it must be <= 100).

Create a segmentation called storeid.  Create an HTML widget.  Segment the widget it by ID and set the contents accordingly.  Then when someone passes ?storeid=200 the corresponding segment will be displayed.

[Andy_Varshneya1]

Similarly, and this would be a little overkill but may be justified if you see this part of the process growing, but you could also do this with a custom object.