Data & privacy

URL fragment

Example: A margin calculator on a restaurant-tools site packs the chef's cost inputs into the part of the link after the # symbol, so the owner can bookmark the scenario and the server never receives any of those private numbers.

the part of a URL after the #

The portion of a URL that comes after the # symbol (sometimes called the "hash"). Per HTTP specification, browsers never transmit fragments to servers — they're read and used only on the client side.

Why it matters

A clean pattern for client-side tools that need a "save this scenario" URL: encode the inputs into the fragment, hand the reader a bookmarkable link, and keep the server entirely out of the loop. The permalink works; the server never sees what's in it. When Margin Math's share URLs ship, this is the design.

Frequently asked

What is URL fragment?

URL fragment is the portion of a URL that comes after the # symbol (sometimes called the "hash"). Per HTTP specification, browsers never transmit fragments to servers — they're read and used only on the client side.

Why does URL fragment matter for a restaurant?

A clean pattern for client-side tools that need a "save this scenario" URL: encode the inputs into the fragment, hand the reader a bookmarkable link, and keep the server entirely out of the loop. The permalink works; the server never sees what's in it. When Margin Math's share URLs ship, this is the design.

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