Experimental project · Data source: CZ.NIC · Non-commercial

cz.w8.cz

Exploring data behind the .cz domain ecosystem

regZone.cz

Registrar profile focusing on retention (domain_renew), acquisition/onboarding (contact_create), and migration (transfers). All calculations are anchored to the selected date range.

Registrar ID: REG-ZONER Range: 2024-12-152025-12-15 Window: 365 days Ranking
30d 90d 182d 365d
Domains (start → end)
64 164 → 64 629
ΔDomains: +465 · Market share (end): 4,258%
Retention (window)
54 370
Renewals / 1k avg domains: 843,91 (avg base: 64 427)
Retention vs last-year base
63 726
Avg domains (t−1y window) · Renewals / 1k prev-year avg: 853,18
Acquisition & interest
3 331
contact_create · domain_create: 5 282 · contact/domain_create: 63,1%
Migration & organic growth
+204
Net transfers (gain−loss) · Organic growth ≈ ΔDomains − net transfers: +261 · contact/organic_growth: 1 276,2%

Interpretation notes

domain_renew is treated as the strongest observable proxy for retention (customers paying to keep domains). domain_create is interpreted as attempts/interest rather than confirmed purchases. Transfer flows are used to decompose domain base changes: ΔDomains ≈ organic_growth + net_transfers, where organic_growth ≈ ΔDomains − net_transfers.

Domains over time

Absolute daily domain count attributed to the registrar (stock variable from daily_stats). Step changes often indicate portfolio migration or acquisition.

Market share over time

Daily market share (%) = registrar domains / total .cz domains. Normalizes out overall market growth.

Retention signal: domain_renew (daily)

Daily renewal operations (flow). Aggregates to window totals and supports renewal-intensity comparisons.

Acquisition vs interest (daily): contact_create vs domain_create

contact_create approximates onboarding/new customer objects; domain_create captures attempts/interest. Ratios may exceed 100% due to decoupling (pre-created contacts, reuse, API workflows).

Transfers: gain / loss / net

Migration signal based on registrar-to-registrar moves. Loss is negative; net = gain − loss.

Daily change (first difference): ΔDomains(t)

ΔDomains(t) = Domains(t) − Domains(t−1). Highlights shocks, step changes, and high-volatility periods.

Monthly renewal share vs last-year domain base (100% stacked)

For each month, we compare domain_renew to the registrar’s average domain base in the same calendar month one year earlier. The stacked view estimates “renewed” vs “not renewed” share relative to that last-year base (capped at base for visualization). Important: this does not account for multi-year renewals (renewing for multiple years reduces observable renewal operations later), therefore this is a comparative proxy, not a true renewal rate.

Monthly: Renewals / last-year base (%)

Renewal intensity expressed as percent of last-year monthly base: 100 × domain_renew_month / avg(domains_month_(t−1y)). Can exceed 100% due to operational effects (including multi-year renewals and data decoupling).

Transfer counterparties (competitor matrix)

Competitor Incoming Outgoing Net
Forpsi 165 475 -310
REG-THOSTING 251 0 +251
Webglobe 303 100 +203
Active 24 175 92 +83
VEDOS 247 307 -60
REG-1API 51 12 +39
REG-INTERNETX 52 18 +34
REG-KEYSYSTEMS 9 41 -32
REG-ASPONE 28 1 +27
REG-ASCIO 4 23 -19
REG-UN-DOMAINS 1 15 -14
REG-SEZNAM 16 4 +12
REG-WEB4U 18 6 +12
Subreg 112 120 -8
REG-GANDI 1 9 -8
REG-IPMIRROR 15 7 +8
REG-THINLINE 33 26 +7
REG-OPENPROVIDER 2 8 -6
REG-WEBSUPPORT 12 17 -5
Media4web 48 53 -5
REG-LEXSYNERGY 0 5 -5
REG-ONE 5 1 +4
Gigaserver 7 11 -4
REG-KRAXNET 3 0 +3
REG-INWX 0 3 -3
REG-NAMESHIELD 0 2 -2
REG-NETIM 10 8 +2
REG-MARKMONITOR 0 2 -2
REG-WINSOFT 2 3 -1
REG-CZNIC 0 1 -1
REG-QUANTCOM 1 0 +1
REG-PIPNI 1 0 +1
REG-BANAN 2 3 -1
REG-NEXUM 1 0 +1
REG-NOMIQ 1 0 +1
REG-CORE 0 1 -1
REG-AERO-TRIP 3 2 +1
REG-TELE3 4 3 +1
REG-CT 1 1 +0
REG-OVH 9 9 +0

Aggregated registrar-to-registrar transfer flows within the selected window. Positive net indicates dominance of inflow from that competitor; negative indicates outflow.