Why this dimension exists
A slow or non-mobile-readable page is dropped before any content analysis happens.
Why it carries 2%
Lowest. The checks here are coarse on purpose; full Core Web Vitals need a real browser, which this scanner deliberately does not run.
The rules it is scored by
Each rule is a single question the scanner asks about a page. Passing one adds its share of this dimension; failing it takes that share away. Every rule links to what it looks for and what evidence passes it.
What this dimension cannot tell you
A single-URL scan reads one page. It cannot see the rest of the site, it cannot see how a model behaves over time, and it cannot see whether the page is actually cited for the queries that matter. Those are the parts of the picture a score of this kind is blind to, and they are listed in full on the methodology page rather than implied here.
Questions about Delivery & Mobile
What does the Delivery & Mobile dimension measure?
A slow or non-mobile-readable page is dropped before any content analysis happens.
Why is Delivery & Mobile worth 2% of the score?
Lowest. The checks here are coarse on purpose; full Core Web Vitals need a real browser, which this scanner deliberately does not run.
What does failing Delivery & Mobile look like?
The rules above describe it precisely. Each states the condition it tests, and a scan reports which of them a page does not meet.
How do I improve Delivery & Mobile?
Start with the rules worth the most, because that is where the points are. Every rule links to a page explaining what it checks and what evidence satisfies it, and a scan reports which ones a specific page currently fails.
Evidence and sources
Adding source citations produced the largest measured visibility gain for low-ranking sites, at +115%, ahead of the addition of expert quotations at +41% and statistics at +30-40%, across the strategies tested on generative engines. — Generative Engine Optimization, KDD 2024
The weighting behind this dimension follows that measurement. A failure here is reported as a rule rather than a score, so it can be checked against the page instead of taken on trust.
Primary sources