To identify the components of a good horror story, first pay attention to the mood. A really good horror story will have a mood that makes you feel uneasy from the start. Next, look at the antagonist. Is it something truly terrifying? And the plot should have some sort of escalation of horror. For instance, it shouldn't be all - out scary from the beginning but build up to a really terrifying climax.
You can start by looking at the setting. If it gives you chills just thinking about it, it's likely a good component. Then check the characters. Are they in real danger? If so, that's a sign. Also, see if there's a sense of mystery that makes you keep reading.
One can identify the components of a good horror story in several ways. Look at the overall atmosphere. Is it filled with a sense of dread? If it is, that's a great start. Examine the characters and their relationships. In a horror story, these can be used to heighten the tension. For example, if there are secrets between characters that are gradually revealed in a spooky way. Also, consider the source of the horror. Is it a physical threat, like a beast, or a more psychological one, like a curse? Understanding these aspects will help you identify the components of a good horror story.