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48 Laws of Web Design

48 blunt landing-page rules for startups, with thresholds you can actually check

Aboutx.com

A numbered checklist of startup web-design rules written by a working designer, stated as constraints rather than principles: headline under 15 words, one CTA per viewport, social proof above the fold, at most two fonts per page, 5-6 nav items maximum, one question answered per section, exactly three steps in the how-it-works block, logo around 40px. It is opinionated about tradeoffs too — pricing must be visible, mobile is the primary view for roughly 62% of traffic, load time can outweigh visual polish, product screenshots outrank illustrations, testimonials with faces outrank text-only, and mixed outlined-and-filled icon styles read as amateur. Useful as a pre-launch pass over a marketing site.

For an agent

Run this as a review pass after you generate a marketing page, not as a generator — most of its rules are countable (word count, CTA count, font count, nav items, steps) so you can self-check a page against them mechanically before handing it back. Treat the aesthetic claims (dark backgrounds read premium, gradients are back) as dated-on-arrival taste, and ignore its silence on accessibility: several rules, notably the contrast-at-all-costs CTA advice, need a real contrast check on top. Do not cite the 62% mobile figure as sourced.

Why it is here. Landing-page advice usually arrives as vibes; this one arrives as thresholds, which is the form an agent can actually enforce.

Install command, framework, licence and component list.
Helps you build4
Notable for
  • countable, checkable rules
  • one CTA per viewport
  • three-step how-it-works
  • 5-6 nav items maximum
  • screenshots over illustrations
Provenance

Verified 2026-08-15. not fetched by policy — x.com content supplied pre-enriched; classification derived from the supplied full article text

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