AEO check rules and version history

Rules 2026-10-29.1In effect since 2026-10-29Check set v3In effect: A1·A2·A3·B1·B2·B3·B4·B6

This page shows which rule version AEO checks with today, how the score is calculated, how the two stamps are judged, and what changed in each version. The version and the rules in effect are read straight from the checking code, so they are the same data the checks use.

1. What the score measures

It measures whether AI can correctly read and introduce your website. Every criterion looks only at your own website and never compares you with other businesses.

2. Weights

Score = completed weight / assessed weight × 100, rounded; total weight 90. Items that cannot be confirmed or do not apply are left out of the denominator, so nothing is deducted because we could not read it.

How each item is judged: checks and criteria →

3. How the two stamps are judged

Business introduction stamp

Your website needs one paragraph that says who you are, what you do and where you are. Category names, download prompts, copyright notices, questions and negative statements are not introductions. If we could not read the whole page this time, the result is "unconfirmed" and nothing is deducted.

Registry check stamp

We compare your website with the official business registry of Taiwan or Japan. The stamp is given when the registration number matches with no conflicting name or address, or when both name and address match; a registry entry the business has confirmed in AEO+ also counts. Where several businesses share the name, the registration number is used; showing it on your website completes the match. Other countries have no registry available yet: the item does not apply and nothing is deducted. The basis of the match is shown on your passport.

4. Rules currently in effect

These are the detailed rules actually used for checks here right now. They are the same data recorded with every check as its rule version.

• A1 Introduction stamp: "what you do" is recognised in a wider range of wording, not only service-business phrases; negative wording is only checked in the parts that describe your business and location.
• A2 Introduction stamp: "where" may be in any sentence of the same paragraph, or in a full address in your structured data; a short name without the company-type suffix counts as your name; questions are not introductions.
• A3 Introduction stamp: when the layout splits your introduction into a few adjacent blocks, they are read together; starting with the first part of your name followed by what you do also counts as saying who you are.
• B1 Registry stamp: once the registration number matches, differences in how a Taiwan address is written (numerals, floor notation, postcode) are not treated as a mismatch.
• B2 Registry stamp: data named the same as the page title is not treated as a second business identity.
• B3 Registry stamp: without business structured data, a slogan-style main heading is not taken as your business name.
• B4 Registry stamp: a registration number written only in the page text is also looked up, and used only if the registered name matches your business name.
• B6 Registry stamp: without a registration number, your name is looked up again without the page-title slogan and company-type suffix; exactly one registry match with no conflicting address earns the stamp.

5. What we do not publish

The word lists, the order of the checks and the exclusion conditions are not published. If they were, copying a template sentence would earn the stamp and the stamp would mean nothing. Your own report tells you what is missing.

6. Version history

• 2026-10-29.1 Current · In effect since 2026-10-29
  Each check now records the rule version it used. The introduction and registry stamps were revised (see "Rules currently in effect"); existing shops get the new rules at their next check.

Checks made before rule versions were recorded are labelled "rules before 2026-10-29" in the report.

7. FAQ

← Checks and criteria