Unique to MarketInvoice. Neither FundBiz nor PeptideClear has a stripped conversion-only layout, a real gap for any future paid-traffic campaign on those sites.
Frames render the real page at that width, scaled to fit the column.
Zero nav, zero footer sitemap, zero outbound links. Form-first on mobile via a CSS order swap. "Every nav item is a bought exit," per the page's own code comment.