Our latest scan of crossref.org detected 20 technologies across 8 categories. The strongest signals include Act-On, Algolia, Amazon CloudFront.
Current snapshot
Grouped by category ยท confidence is detection certainty
Publisher intelligence
Declared direct and reseller relationships from ads.txt and app-ads.txt. These are publisher declarations, not runtime detections.
Declaration files
0/2
ads.txt and app-ads.txt
Direct relationships
0
Reseller relationships
0
Declared systems
0
Counted per declaration file
Infrastructure
DNS, hosting, TLS and email-security evidence observed during the latest scan. Incomplete lookups remain explicitly unknown.
Site signals
Structured data, languages, social platforms and page capabilities observed across the scanned pages.
Observed changes between stored scans, not vendor-confirmed installation dates.