A3 iFrame builds your website from the document you upload, so the quality of that document shapes the quality of your site. The AI can only work with the content you give it, which means a focused, well-organized document leads to a stronger result. Here's how to prepare one.
No document yet? You don't have to create one just for this. On the document step you can choose Describe your site with AI and the AI will write the content from a few sentences — see generating your content with AI. The rest of this guide is for when you'd rather upload your own document.
What to include
A great source document covers the essentials a visitor would want to know. Make sure yours includes:
- A name or business name. This becomes the identity of your site, so state it clearly near the top.
- An About or summary. A short paragraph or two explaining who you are or what your business does, and why it matters.
- Your services or offerings. List what you provide, with a sentence or two about each so the AI can build out sections.
- Contact details. Include how people should reach you, such as an email address or location, so the AI can add a contact section.
If you have extras like testimonials, a short history, or key achievements, include those too. They give the AI more material to design around.
How long it should be
Aim for roughly 200 to 4,000 words. That's enough to give the AI real substance to work with, without burying the important parts. A very short document may produce a thin site, while an extremely long one can dilute the focus. If your content is long, trim it down to the parts that matter most for a website.
Write real content, not instructions
This is the most common mistake, so it's worth stating plainly. Don't write instructions for the website itself, such as "make a blue homepage with a big hero image and three columns." The document should contain your actual content, the words you'd want a visitor to read. If you want to influence the look and feel, use the design preferences and the short design instruction instead, described in choosing your design preferences.
Think of your document as the script for your site, not the stage directions. Real About text, real service descriptions, real contact details.
Formatting tips
You don't need fancy formatting, but a little structure helps:
- Use clear headings or short paragraphs to separate topics.
- Keep one idea per paragraph so sections map cleanly.
- Spell-check before uploading, since the AI works from your words.
File format and size
You can upload .docx, .pdf, .txt, or image files, up to 10 MB. Word, PDF, and text files are read for free, while images use AI vision. For the full details, see supported file types and size limits.
Once your document is ready, create a site and upload it to start generating. If your first result misses something, it's usually a gap in the document, so improve the content and regenerate. Need a second opinion on your document? Open a ticket from support.
