Ways to display content alongside an image

Is there a way to verify if an application is running on another server by displaying an image it provides? The challenge is that altering the content of the image is not an option. If the image is not provided, can I show an alt attribute indicating that the app is down?

I am seeking a solution using CSS/HTML, or possibly JS or PHP if necessary.

One idea is to hide the image and display a message saying "the app is up" instead. However, traditional methods of image replacement do not seem to work in this case. Any suggestions on how to achieve this?

htmlcssimage

Answer №1

If you want to personalize the message shown when an image fails to load, you can achieve it with just HTML and CSS. However, if you're looking to customize the loaded image message, that might be a bit tricky. One workaround is to utilize a JavaScript Ajax request to verify the status header of the requested resource without actually loading the image.

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