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Featured in Domain Arrivals · 2026-08-10

コーセイ大臣 ゆうこさん: an AI proofreader for Japanese print work

koseidaijin.com ↗ · Useful Tools · score 78.0
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 Japanese proofreading service that checks PDFs, images, Word files, and text for errors, inconsistencies, and possible advertising-law violations.

Why it surfaced

Its unusual promise is to read the page as a page: it reconnects text broken across PDF layouts, catches price and date discrepancies between pages, and cites relevant laws for concerns involving Japan's 景品表示法 and 薬機法. The homepage also makes the useful human-in-the-loop case that AI handles the first pass, while people make the final call.

Ham Is Specifically Discouraged

August 10’s newborn domains include a mock cryptid council that specifically discourages ham, a vintage phone collecting messages for Twyla’s 70th, a 4.5-meter dish measuring Galactic hydrogen at 1420 MHz, and an open index that found 530 sites permitting GPTBot in robots.txt while refusing it at the server.

This is one of 1,000 discoveries in the 2026-08-10 Domain Arrivals issue.