Cookieless delivery of personalized content

A computer-implemented system comprising:

• a memory configured to store computer-executable instructions;
• and
• a processor configured to retrieve the stored computer-executable instructions and execute the computer-executable instructions on the processor, the computer-executable instructions configured to:
• generate a query index from a data corpus, the query index including a plurality of market segment-based queries, wherein each market segment-based query of the plurality of queries is configured to provide targeted content on a browser user interface of a user determined to be within a corresponding market segment;
• construct a browser-executable library comprising the query index, the browser-executable library configured to execute within a local machine browser of a user;
• and
• transmit the browser-executable library to the local machine browser of the user,
• wherein the browser-executable library is configured to determine a query of the plurality of market segment-based queries matching user-specific data only stored in the local machine browser of the user,
• wherein the query matching the user-specific data stored in the local machine browser of the user causes the local machine browser to request and receive content corresponding to the user-specific data of the user.