The studies show how frequently technical SEO signals occur in the current Seitenreport database. Each evaluation combines a measurable benchmark with a practical classification for audits, relaunches and prioritization.
The central data study summarizes domains, countries, CMS and selected technical signals. It is the best start if you first want to understand the entire database.
View data studyEvaluations by overall basis, country and CMS make the values more comparable.
Each study explains which checks in the audit turn it into concrete fields of action.
Sample and boundaries are called visible so that small bases are not overinterpreted.
Canonicals are a quiet but important indexing signal: they help search engines merge variants of a page cleanly.
All websites
Meta descriptions are not a direct ranking lever, but they do influence how convincing a page is in the search result.
All websites
Structured data makes content more explicit: organization, website, breadcrumbs, articles, products or local company data become easier to read for machines.
All websites
HSTS is not a classic content signal, but a clear sign of technical maturity: browsers should only retrieve the website encrypted.
All websites
A content security policy limits which resources a browser is allowed to load. This reduces risks, but is more demanding in complex frontends than simple headers.
All websites
A clear H1 is not a magic ranking factor, but a good structure and template signal: users and crawlers recognize faster what a URL is about.
All websites
ALT texts combine SEO, accessibility and editorial quality. This indicator does not describe empty alternative texts; their content quality and the function of decorative images must be assessed separately.
All websites
Noindex is a risk signal when it appears on important landing pages. The share alone does not distinguish between intentional and unintended exclusions.
All websites
Many SEO errors seem bigger or smaller than they are in isolation. A benchmark helps identify patterns: Is a missing header normal, a CMS effect, or a real competitive disadvantage?
The data does not replace a strategy or a manual quality check. They show technical frequencies, not guaranteed rankings. This is precisely why the sample, segment and methodology are visible.
The benchmark base now uses URL samples and can later be expanded to include industry clusters, accessibility, performance and monitoring history. This will make the studies more resilient step by step.
