Checks and export
Check
More > Check (or zest check page.html) runs deterministic checks only. Each finding names the lines, says why it matters, and offers a fix where one is safe without judgment. Ask my agent turns any finding into a note.
| Finding | Level | Fix |
|---|---|---|
| A file the page asks for does not exist | 🛑 | Pick a new image, or fix the path |
| Images load from another site | 🟠 | Localize images: copies each into assets/ and points the page at the copy |
| Images have no alt text | 🟠 | Click each in edit mode, then Alt text |
Images written into the page as text (data: images over 20 KB) | 🟠 | Move into assets: Localize saves each as a file in assets/. Your agent reads the page faster and cheaper |
| Images over 1 MB | 🟠 | Shrink images: re-saves at 2000 px wide, originals kept in .zest/originals/ |
No <title> | 🟠 | Page panel |
| No viewport tag (the page will not fit a phone) | 🟠 | Add viewport tag |
Links that go nowhere (href="#" or empty) | 🟠 | Click each link in edit mode |
| Placeholder text (Lorem ipsum, TODO, TBD, [Company], [Your name], XX%) | 🟠 | Edit, or ask your agent |
| Images whose licence requires a credit, with no credit on the page | 🟠 | Copy the credit into a caption or credits section |
| Scripts or styles from another site | ℹ️ | Fine on the web; a Claude Artifact allows only some CDNs |
| The page does not say its language | ℹ️ | Set lang="en" |
| No share card | ℹ️ | Page panel: title, description, share image |
zest check exits non-zero when it finds a 🛑, so you can use it in a script.
Look at it on a phone
Check > Phone view and Tablet view show the page at 390 and 820 pixels wide in a frame, without the editor. Your agent can do the same: zest shoot page.html --full --width 390.
One file out
Check > Make a single file (or zest bundle page.html) writes page.single.html beside the page, with every local image, stylesheet, script and font inlined. Email it, attach it, or publish it as a Claude Artifact. It reports anything still loaded from the web and warns above 16 MB, the Artifact limit. Your page itself is not changed.
Print or PDF
Check > Print or PDF opens the browser's print dialog with the editor hidden. Choose Save as PDF.