Turning your own test page into structured data
By Oliver Schmalzl · Written: · Archive discovery date:
14 June 2026 · Archive date
A web page usually contains more than the text needed for a particular question. Navigation, recurring notices and the actual content sit side by side. For automatic processing, it has to be clear which part is relevant.
A self-made test page with three invented paper models makes this easy to follow. Each model has a title, a description and a stated paper size. Next to them are general navigation links.
First define the structure you want
The goal could be a list with exactly three fields per model: title, size and source. This lets you check whether the processing really selects the right places. A long block of text would be less helpful for this task.
Crawl4AI documents tools for processing web pages. What is interesting here is the link between visible content and a structured output. The actual extraction method, however, has to suit the page in question.
For the exercise, titles and sizes are compared with the result by hand. Empty values should stay empty. If a description does not mention a size, the tool must not simply take the value from the previous entry.
Origin is part of the data
A value you take over comes with the page it originates from. With later changes, it also becomes relevant when the processing was carried out. A stored structure without its origin is hard to check.
Your own attempt stays limited to content you provide yourself. It needs neither access barriers nor a large collection of other people's texts. The result already shows what matters: the structure should answer a specific question without losing the connection to the source content.
Original finds
These links were the starting point for this post. The assessment in the text is my own; the linked posts are not my own tests.
About the date: This post was written on 11 October 2026. The archive date corresponds to the earliest related find in the collection, not to a publication at that time. Technical assessments and sources added later refer to the time of writing.