Tech zoo for your memory

Get the response before you even ask

Original creatures for the HTTP status codes you meet every day in the browser, logs and console. A card, practice, traps with look-alike codes. Six languages.

A tiny round critter peeks over the rim of a cracked egg; the shell is painted like a loading spinner and spins.
102
A beaver in a yellow hard hat stands proudly by a sparkling brand-new log cabin, next to a signpost that says “NEW”.
201
A green chameleon on a branch holds up an instant photo of itself in the same pose, with an equals sign between them.
304
A round hippo shaped like a porcelain teapot lets off steam; next to it a coffee cup and coffee beans stand by a “no coffee” sign.
418
A parrot on a cable between two servers squawks a garbled speech bubble; the server behind it smokes under a red warning light.
502

Zoo map

How it works

  1. Meet it

    The creature’s card: what the code means, where you meet it and what to test.

  2. Practise

    From picture to code and back. Two right answers in a row and the code gets a ✓.

  3. Don’t mix them up

    Traps with look-alike codes: one rule and a few situations to sort.

Why train your memory when there is AI?

It answers questions. But you can only ask about what you know exists. If a 429 flashes by in the logs and you know why exactly this status appears, you save a few questions and tokens 😉

Mnemozoo trains exactly that: recognition. This site was made with AI, but AI won’t do the thinking for you.

About the project

An independent QA project by Maryna Bortnyk.