We're building a simple function that converts any string into lowercase alphanumeric characters and hyphens, e.g. "My Exciting 1st Example!" becomes "my-exciting-1st-example". This is specifically for creating URL parts.
I've previously called it "safe URL", but it's not technically a Unique Resource Location, and this spec certainly doesn't encompass the full set of safe URL characters. Given its common usage, is there a commonly used name for this state or process? Much like "alphanumeric" is a thing?