Choosing your Registry Service Provider (RSP) is one of the biggest calls you’ll make for the 2026 round. A Registry Service Provider (RSP) is the back-end operator that runs the technical infrastructure of your gTLD and keeps it compliant with ICANN. Your RSP is the engine room: they keep your TLD live, fast, secure, and compliant. Pick well and you set yourself up for growth. Pick poorly and… well, you’ll feel it everywhere.
This guide explains what an RSP does-and then gets you straight to the useful bit: our RSP Selector, a quick way to shortlist providers that actually fit your TLD and priorities.
They run the technical backbone of your TLD so everything “just works”:
DNS & Anycast: global reach and reliability
EPP: registrars can connect and transact
Zone file publication: domains go live correctly
RDAP/WHOIS: compliant data access
Data escrow: your data’s backed up with an approved third party
DNSSEC: cryptographic signing for trust
Reporting & compliance: you meet ICANN obligations
24/7 monitoring: incidents spotted and fixed, fast
They run the technical backbone of your TLD so everything “just works”:
Bottom line: a good Registry Service Provider (RSP) keeps your TLD online, secure, and trusted – without you sweating the plumbing.
Different TLDs want different things – so do different RSPs.
.brand
Low volume, high control, bespoke workflows, strong security posture.
Look for: policy flexibility, single-registrar support, tight integration.
Open/generic
Volume through registrar channels, launch spikes, analytics, price tiers.
Look for: registrar reach, autoscaling, onboarding support, transparent pricing.
Geo & Community
Policy nuance, multi-lingual support, regional distribution.
Look for: experience with community rules, localization options.
Turn a long vendor list into a focused shortlist in minutes, then drill deeper only when it’s worth your time.
Access the tool: RSP Selector
(Detailed comparative data and notes are available to clients.)
Tell us what you’re launching.
Pick a few essentials.
Get a clean names-only shortlist.
Click a name to see more (for clients: full details, scorecards, notes).
ICANN’s evaluation is now table stakes: applicants must name an RSP that has been or will be evaluated. In practice, this means you’ll want to engage with providers who are already in the process or have published status. Our Selector lets you filter by Pre-approved / In review / All, so you’re never shortlisting in the dark.
(We keep the deep compliance and technical details for the drill-down view, available to clients.)
Use these to turn “maybe” into “yes/no”:
Experience & fit
Have you supported TLDs like ours (.brand vs open)?
How many TLDs are you running today? Any recent launches?
Growth & reach
How many registrars are live today?
Typical time to onboard new registrars?
Flexibility
Can you support our policy quirks (eligibility checks, premium tiers, etc.)?
Do you provide white-label portals or extra APIs if we need them?
Reliability & security
Uptime SLAs and incident response targets?
Registry Lock and recent pen-testing cadence?
Clarity on cost
Pricing model (flat / per-domain / hybrid / tiered)?
What’s included vs add-ons (escrow, reporting, migration, etc.)?
Neutrality
Do you also operate registrars or TLDs? How do you manage conflicts?
The Selector gets you from universe → shortlist. From there, we can:
Align your TLD business model with each RSP based on real-world experience
Run side-by-side comparisons with your priorities weighted properly
Pressure-test performance, registrar reach, and price-to-value
Advise on contract structure (SLAs, exit/continuity terms, change requests)
Align the back-end with your launch plan and long-term growth model
You stay focused on the what (brand, growth, community impact).
We optimize the how (partners, performance, and path to market).
Grab access to the RSP Selector. If you want the full comparison pack – deep dive data, notes, and nuanced trade-offs – our client edition has you covered.
Call to action:
Get the RSP Selector – free access
Talk to TLDz – book a 20-minute fit check
Whether you’re launching a .brand, a generic gTLD, or a community-driven TLD, we’ll help you put the right foundation in place.
TLDz is here to guide you, from technical planning to long-term success.
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