Every post here is counted from the same 189 sites and 2,429 screenshots the MCP server answers with. No estimates, no invented benchmarks.
Last updated September 10, 2026
6 posts · every finding is counted from the live registry
A link is a pointer.
A screenshot is evidence.
A link is not a reference. An agent that cannot open a URL builds from its priors regardless of what you sent it. The requirement is pixels in the vision context at the moment the component is written.
Agents and design · September 10, 2026 · 5 min
189 sites.
124 share a tag.
124 of the 189 sites in the swaggin registry carry the same style tag. That tag is the layer every agent already knows. Everything that makes a page distinct lives in the second tag, and almost nobody asks for it.
Agents and design · September 10, 2026 · 5 min
189 landing pages.
25 dark modes.
Dark mode on a marketing page is not a general convention. It is a developer-tools convention. 23 of the 25 sites that ship one sell to engineers, and outside that audience the rate is 2%.
Registry data · September 10, 2026 · 4 min
28 patterns.
4 at zero.
Settings, empty states, notifications and error states have zero screenshots across 189 sites. They are not rare. They are behind a login, which is why no reference library can show them and why agents design them from priors alone.
Registry data · September 10, 2026 · 4 min
80 logo walls.
38 testimonials.
The logo wall is the single most common annotation in the swaggin registry, appearing on 80 of 189 sites. Testimonials appear on 38. Only 25 sites use both, which means most pages are proving one thing and skipping the other.
Patterns · September 10, 2026 · 4 min
22 use cards.
5 use a ribbon.
Tiered cards are near-universal at 22 of 27 sites. A billing toggle appears on 11. The 'most popular' ribbon that every agent adds by default appears on only 5.
Patterns · September 10, 2026 · 5 min