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KOAlil.comJapan travel, in EnglishBy an editor born in JapanAutumn 2026
How I check

How I check

Where the facts on KOAlil come from, how I date them, and what I do when I cannot confirm something.

Last updated 17 October 2026

KOAlil is written by one person, and the only thing it has to offer is that the facts are right. This is how I try to keep them that way.

Official sources first

I take prices, rules and dates from the organisation that sets them, on its own page: the ministry, the city office, the railway company, the operator. Blogs and forums can point me to a question; they are never where a number comes from.

Read twice, linked in place

I read each figure against its source twice, and I link the source in the sentence that uses it, so you can check it yourself without scrolling to a list at the bottom.

Dated

Every article ends with the date I last checked it. On the section pages, that date appears as “Checked” next to each story.

Not confirmed yet

When an official page does not answer a question, I say so in a box labelled “Not confirmed yet” instead of guessing. Those boxes are a list of what to check before you rely on that part.

When things change

Dates that affect a trip go on the What’s changed page, with a countdown for the ones still ahead. When a rule or price changes, I update the article and say what changed at the top.

What I have not tried

If I have not done something myself, the article says so. My guide to regional rail passes, for example, says plainly that I have never used them.

Corrections

If something here is wrong or out of date, please tell me through the contact page. I fix confirmed errors and note the update in the article.

— ko, writing from Niigata