Platform Check Your Core Web Vitals compared with websites on AEM, Edge Delivery Services and Magnolia in the DACH region
The platform check puts your field data in context. You enter the 75th percentile values from PageSpeed Insights or your monitoring, select your platform and the device, and see for each metric which rating band your value falls into, how many websites on the same platform are in that band too, and where the platform median lies. It is based on the Core Web Vitals Benchmark, data as of August 2026.
Result: rating per metric
| Metric | Your value | Rating | Websites in the same band | Group median |
|---|
All entries stay in your browser. Nothing is stored and nothing is transmitted.
Data basis of the platform check: benchmark with field data from the Chrome UX Report
The comparison values come from the AEM Core Web Vitals Benchmark and the Magnolia CMS Core Web Vitals Benchmark. For each group, the share of websites in the bands good, needs improvement and poor and the median of the 75th percentile values are stored.
- Adobe Experience Manager: 4,222 websites in the DACH region on smartphones, 3,335 on desktop.
- Edge Delivery Services: 87 websites on smartphones, 72 on desktop. The group is small; individual websites shift the shares noticeably.
- Magnolia CMS: 148 websites on smartphones, 147 on desktop, from our own survey, because public technology detection does not recognize Magnolia.
- All websites in the DACH region: 812,368 origins on smartphones as a reference.
The rating bands follow Google's thresholds: Largest Contentful Paint good up to 2.5 seconds, poor above 4 seconds; Interaction to Next Paint good up to 200, poor above 500 milliseconds; Cumulative Layout Shift good up to 0.1, poor above 0.25. For Time to First Byte, the reference values 800 and 1,800 milliseconds apply. The metrics are explained under Core Web Vitals.
Limits of the platform check: origin values instead of page types
The check compares one value with a group. It does not say which page type drives the value and which cause lies behind it. An origin with a good overall value can have individual page types that fail, such as product listings with many images or forms with many scripts. That breakdown requires field data per page type, as described under Measuring Core Web Vitals and Real User Monitoring.
Book a free performance analysis
30 minutes via video call. You receive the values of your most important page types and a comparison with two competitors from your industry.
Frequently asked questions about the platform check
Where do I get the values for the platform check?
From PageSpeed Insights, at the top in the section with real-user data: it shows the 75th percentile values for the page or the whole origin, separately for mobile and desktop. The Chrome User Experience Report and your own real user monitoring provide the same values. Lab data from Lighthouse is not suitable, because the comparison is based on field data.
Are my entries stored or transmitted?
No. The comparison values are already included when the page loads, and your browser does the calculation. Nothing is stored and nothing is sent to a server.
Why is the value for all websites better than the one for AEM?
The reference includes all websites in the DACH region with enough traffic, among them many small and lean sites. Enterprise platforms carry more tags, personalization, markets and approval steps. The more meaningful comparison is therefore the one with your own platform.
How current are the comparison values?
They come from the Core Web Vitals Benchmark, data as of August 2026. The benchmark is renewed quarterly, and the values on this page change with each edition.