Domain Arrivals
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Featured in Domain Arrivals · 2026-08-13

Ladr — One ladder. Both books.

ladr.trade ↗ · Useful Tools · score 82.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A prediction-markets terminal that combines Kalshi and Polymarket quotes on one fee-adjusted ladder, with each rung labelled by its source.

Why it surfaced

Ladr does more than merge prices: it preserves per-quote provenance, flags gaps and untrusted books, uses integer cents throughout, and refuses an order when the data is not reliable enough. The terminal is still in development and uses sample data on its public page, but its unusually specific design decisions make the product easy to understand—and worth checking back on.

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Thirty Patents for the Grave

August 13’s newborn domains include 30 safety-coffin patents, lost notices for false teeth and a box of hair, short films playing in 100 Tokyo taxis, and a Queensland river view arranged gauge by gauge downstream.

This is one of 1,000 discoveries in the 2026-08-13 Domain Arrivals issue.

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