Normalizing uniform resource locators

A computing system, comprising:

• one or more processors;
• and
• one or more computer-readable devices including instructions that, when executed by the one or more processors, cause the computing system to perform operations that include:
• receiving, by the computing system, a request to normalize an input Uniform Resource Locator (URL);
• identifying, by the computing system, a user account to which the request to normalize the input URL relates;
• determining, by the computing system, a selected set of URL normalization rules that are identified as being activated for the user account from among a larger collection of URL normalization rules;
• normalizing, by the computing system, the input URL using the selected set of URL normalization rules to generate a normalized URL;
• hashing, by the computing system, the normalized URL to identify a hashed value that represents the normalized URL;
• storing, by the computing system, information that results from an analysis of the input URL in association with the hashed value;
• receiving, by the computing system, a request for information that results from a URL analysis, the request for information that results from the URL analysis including the hashed value;
• and
• accessing, by the computing system using the hashed value responsive to receiving the hashed value in the request for information that results from the URL analysis:
• (i) the information that results from the analysis of the input URL, and
• (ii) second information that results from an analysis of a second input URL that is different from the input URL, without the accessing using the input URL and without the accessing using the second input URL, wherein the normalized URL represents a normalized version of the second input URL when the second input URL is normalized according to the selected set of normalization rules.