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

cz.w8.cz

Exploring data behind the .cz domain ecosystem

Subreg

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-GRANSY Range: 2024-12-152025-12-15 Window: 365 days Ranking
30d 90d 182d 365d
Domains (start → end)
137 267 → 139 520
ΔDomains: +2 253 · Market share (end): 9,192%
Retention (window)
102 716
Renewals / 1k avg domains: 760,07 (avg base: 135 140)
Retention vs last-year base
140 695
Avg domains (t−1y window) · Renewals / 1k prev-year avg: 730,06
Acquisition & interest
8 299
contact_create · domain_create: 15 145 · contact/domain_create: 54,8%
Migration & organic growth
+4 805
Net transfers (gain−loss) · Organic growth ≈ ΔDomains − net transfers: -2 552

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
Webglobe 9 589 190 +9 399
VEDOS 5 194 12 308 -7 114
REG-KRAXNET 2 454 1 +2 453
Forpsi 763 1 150 -387
Active 24 409 257 +152
REG-THOSTING 122 0 +122
REG-WEBSUPPORT 134 45 +89
REG-DOMAINPROFI 89 0 +89
REG-WINSOFT 59 4 +55
REG-THINLINE 90 142 -52
REG-OPENPROVIDER 23 71 -48
REG-WEB4U 99 65 +34
REG-GANDI 10 43 -33
Gigaserver 84 57 +27
Media4web 139 113 +26
REG-NETIM 14 32 -18
REG-IPMIRROR 0 17 -17
REG-BANAN 15 1 +14
REG-SEZNAM 26 12 +14
REG-TELE3 79 66 +13
REG-KEYSYSTEMS 16 26 -10
regZone.cz 120 112 +8
REG-1API 11 19 -8
REG-PIPNI 8 0 +8
REG-OVH 2 8 -6
REG-ASCIO 1 6 -5
REG-MIRAMO 3 0 +3
REG-ONE 5 2 +3
REG-NEXUM 2 0 +2
REG-AERO-TRIP 4 2 +2
REG-NOMIQ 0 2 -2
REG-INWX 0 2 -2
REG-MARKMONITOR 1 3 -2
REG-LEXSYNERGY 0 1 -1
REG-INTERNETX 0 1 -1
REG-ASPONE 3 4 -1
REG-DYNADOT 1 0 +1
REG-UN-DOMAINS 0 1 -1
REG-NAMESHIELD 0 1 -1
REG-CZNIC 1 1 +0
REG-SAFENAMES 1 1 +0

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