Disclosed herein are techniques for testing a page. In some implementations, an intermediate representation of a page is created. The page may be defined by a page description implemented in a markup language. The page description may refer to data accessible via a data model. The intermediate representation may include at least a portion of the data accessible via the data model. The intermediate representation may be capable of being rendered to create a rendered page. The rendered page may be capable of being displayed on a display device. A determination may be made as to whether a test value for a portion of the intermediate representation matches an expected value for the portion of the intermediate representation. When the test value does not match the expected value, an indication of an error may be stored.