- Class
- C4 Informational
- Weight
- 0
- Severity on fail
- info
- Applies to
- Any engine
Scope and evidence
Evaluated on page (P). The book marks this requirement house convention. As a house convention it is off by default, carries no weight, and appears only when a team opts in.
Info when image file names look like camera or CMS defaults (for example IMG_1234.jpg, DSC0001.JPG, a bare hash). The pattern list is a house convention.
Observations
Each condition has a stable code and a reason template. The evaluator fills the placeholders from observed values only; no sentence in a report is generated.
default_filename{n} images on {url} have file names that look like camera or CMS defaults, for example {src}. Google's example: "For example, my-new-black-kitten.jpg is better than IMG00023.JPG." The pattern list is a house convention.
Sources, quoted
These are the passages the rule rests on, stored once in the knowledge base and emitted exactly as written. A citation marked for specific conditions appears only on findings with those codes.
“For example, my-new-black-kitten.jpg is better than IMG00023.JPG.”
[G-IMAGES] Google image SEO best practices · Use descriptive filenames, titles, and alt text · last updated 2026-03-02
https://developers.google.com/search/docs/appearance/google-images