An enrichment snapshot of the Ukrainian `.ua` (ccTLD) web.

UA Web Census 2026 is a structured, per-domain snapshot of the Ukrainian .ua namespace, captured on 27–28 March 2026. Starting from a seed list of ~500,000 registered .ua domains, each was probed and enriched with HTTP, TLS, DNS and content-level signals. The release contains 354,947 probed domains. Of these, 175,182 (49.4%) resolved and returned an HTTP response and carry full enrichment; the remaining ~50.6% did not respond (parked, dead, firewalled or geo-blocked) and appear with null enrichment columns. Keeping both halves makes the dataset a census of probed domains — the live/dead ratio is itself analyzable — rather than a curated list of live sites. Unlike global internet-scan corpora (Censys, Rapid7 Sonar, Common Crawl) or bare zone-file listings, this dataset combines single-ccTLD breadth with rich per-domain enrichment for one national web — a combination that, to the author's knowledge, has not been published openly. Why it might be useful National-scale email security posture — SPF / DMARC adoption across the zone. (Headline finding: ~84.6% of live .ua hosts publish no DMARC.) TLS hygiene — versions, cipher suites, certificate issuers, key algorithms, wildcard/self-signed/mismatch rates. Web ecosystem snapshot — HTTP status and version distribution, content metadata, mobile-friendliness. Longitudinal baseline — a 2026 reference point for the Ukrainian web.