Mk 321

---
name: mk-321
description: "Page Image Alt Text Check. Use when work requires missing information about image content and alternative text; process the specified inputs using this method and verify the deliverable"
---

# MK-321 | Page Image Alt Text Check

For ordinary chat, upload `packs/mk-321.md`, which includes the shared rules, this method, and required references

## Purpose

This skill delivers: **Missing information about image content and alternative text**

Permission in robots or the presence of a sitemap does not guarantee indexing; do not combine technical website status and content quality into one conclusion

## Required inputs

Provide: website pages, HTML, existing content, audience, and search needs

## Method steps

1. Check whether important images have img alt text that explains their meaning
2. Alt text helps machines understand images; describe the actual image and its role on the page
3. Do not use alt text for keyword stuffing or describe information absent from the image

## Calculation and interpretation

Actually crawl and read the content and website structure; check current rules and markup, without guaranteeing rankings or citations

## Required output fields

| Order | Field | How to fill it in |
|---:|---|---|
| 1 | Subject / location | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |
| 2 | Conditions for use | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |
| 3 | Actual evidence | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |
| 4 | Check status | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |
| 5 | Differences / possible causes | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |
| 6 | Next task | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |
| 7 | Limitations | Original evidence, intermediate method results, or an explicit unknown; do not fabricate |

## Validation cases

**MK-321-C05｜Data meets the existing conditions**

Expected: Report that it is usable or should be maintained; do not invent a need for changes

**MK-321-C06｜Tool returns an error**

Expected: Report that the data was not obtained; do not classify it as a business anomaly

## Method sources

Original file: SEO 101-從 HTML 認識開始佈局 SEO/AEO

Source locator: alt

Source basis: extracted from course materials

Original URL: https://docs.google.com/presentation/d/19mQ0h1CsbGBNmfDQs2hIqpCF5K8p2o74_hTYAnhJGvY/edit

English translation of source excerpt retained in the master sheet:

> img alt helps make the meaning of an image easier to understand