placedog.net

• Get a dog photoGet a placeholder photograph of a dog, at a size you choose and with an optional effect, as an address to drop into a mock-up or as a file to keep. Leave 'Save as a file' off and the step costs no request at all. No API key required.
• Get a specific dog photoGet one particular photograph by its id, at any size and with any effect. This is the only way to get the same dog twice: the id pins the photograph while width, height and effect stay free, so a mock-up can show the same animal at three sizes and a re-run produces the picture it produced last time. No API key required.
• Get several dog photosGet several placeholder addresses at once, for a gallery or a mock-up grid. Addresses only, so this costs no requests. Each one carries the service's 'random' parameter, which is what stops the browser showing the same cached dog in every tile. No API key required.
• List the effectsList the effects placedog.net offers, with the short forms it accepts and an example address for each. No request is made: these are fixed by the service. Worth knowing because an effect the service does not recognise is ignored rather than refused, so a misspelling quietly returns an unfiltered photograph. No API key required.
• Check service statusCheck whether placedog.net is answering, and how quickly, without failing the step when it is not. Asks for the smallest image there is, so it costs almost nothing. Branch on 'ok' before building a page of placeholders that will not load. No API key required.

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