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

cz.w8.cz

Exploring data behind the .cz domain ecosystem

Forpsi

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-INTERNET-CZ Range: 2025-12-142026-06-14 Window: 181 days Ranking
30d 90d 182d 365d
Domains (start → end)
331 765 → 331 832
ΔDomains: +67 · Market share (end): 21,198%
Retention (window)
0
Renewals / 1k avg domains: 0,00 (avg base: 329 249)
Retention vs last-year base
323 903
Avg domains (t−1y window) · Renewals / 1k prev-year avg: 0,00
Acquisition & interest
0
contact_create · domain_create: 0
Migration & organic growth
-6 029
Net transfers (gain−loss) · Organic growth ≈ ΔDomains − net transfers: +6 096 · contact/organic_growth: 0,0%

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 595 7 200 -6 605
regZone.cz 855 88 +767
VEDOS 476 1 150 -674
Gigaserver 409 20 +389
Active 24 605 230 +375
REG-KEYSYSTEMS 4 201 -197
REG-THINLINE 98 160 -62
Subreg 344 394 -50
REG-WINSOFT 37 1 +36
REG-WEB4U 55 32 +23
Media4web 10 855 10 878 -23
REG-WEBSUPPORT 23 35 -12
REG-KRAXNET 11 0 +11
REG-BANAN 12 1 +11
REG-ASPONE 6 17 -11
REG-DYNADOT 0 10 -10
REG-INTERNETX 0 7 -7
REG-PIPNI 8 2 +6
REG-OPENPROVIDER 6 12 -6
REG-1API 5 0 +5
REG-SEZNAM 21 16 +5
REG-ONE 7 3 +4
REG-NEXUM 3 0 +3
REG-NETIM 0 3 -3
REG-GANDI 2 5 -3
REG-AERO-TRIP 4 1 +3
REG-MIRAMO 3 0 +3
REG-OVH 0 2 -2
REG-QUANTCOM 2 0 +2
REG-TELE3 19 17 +2
REG-UN-DOMAINS 0 2 -2
REG-CORE 0 2 -2
REG-DOMENESHOP 0 2 -2
REG-ASCIO 2 4 -2
REG-THOSTING 1 0 +1
REG-IPMIRROR 1 2 -1
REG-BARBERO 0 1 -1
REG-NAMESHIELD 0 1 -1
REG-INSTRA 1 0 +1

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