Freshness controls
Choose broad discovery or a date-aware mode based on the question you are investigating.
Reverse-IP intelligence · Refreshed daily
Map domains observed
behind an IP.
Research shared hosting, map observed infrastructure, and stream large result sets across five focused search modes.
Protected public preview · No account required
Public lookup previewRelationship map
Protected203.0.113.42
alpha.example
relay.example
portal.example
Example hostnameLast observedScope
alpha.example2026-07-27recent
relay.example2026-07-26recent
portal.example2026-07-24recent
Reserved example data—not a factual lookup result.
DailyData refresh cycle
5Search modes
StreamedLarge results
ResumableBulk research
Built for meaningful evaluation
Speed is useful. Scope and honesty make it valuable.
A reverse-IP product should explain what its results represent, let customers test their own examples, and remain responsive when an address has an unusually large relationship set.
Read our coverage principlesLarge-set delivery
Progressive retrieval avoids forcing every result into one oversized response before work can begin.
Responsible interpretation
Infrastructure association is presented as evidence to verify, never automatic proof of ownership.
Five ways to search
Use a result window that matches the investigation.
Every paid plan includes the complete search-mode set. Choose Standard for controlled result volume or Unlimited for exceptionally dense IPs.
All Domains
Return the broadest available domain set associated with an address.
Fresh Domains
Prioritize recently observed relationships for current investigations.
Single Year
Focus analysis on observations associated with one selected year.
Multi-Year
Compare infrastructure relationships across a chosen year range.
Custom Since-Date
Filter results from a specific starting date for targeted research.
A clear research workflow
From one address to a result set you can verify.
The interface stays focused on scope, progress, export, and recovery.
01
Start with one clue
Enter a public IPv4 address or prepare a larger domain and IP list.
02
Choose the scope
Search all observations, prioritize fresh data, or apply a date window.
03
Stream relationships
Begin receiving cleaned domains while larger result sets continue.
04
Verify important findings
Use current DNS and independent evidence before drawing conclusions.
Built around real questions
Different investigations need different context.
Use ReverseIP Data as a relationship-discovery layer inside a lawful, evidence-based workflow.
Defensive research
Security investigation
Add public infrastructure context to an authorized scope without treating association as ownership.
Open use case InfrastructureHosting analysis
Understand high-density shared hosting, compare recency, and organize large relationship sets.
Open use case DiscoveryDomain investigation
Pivot from a known address, narrow relevant names, and corroborate each material connection.
Open use caseStart small, then match your workload
Test the complete workflow without a large first commitment.
Start with seven days for $7, then choose $15 Standard or $25 Unlimited monthly access. Annual terms reduce both effective prices.
Seven-day performance test
Proof Pass
$7/ 7 days
Test the licensed workflow with your own representative addresses before choosing a monthly or annual plan.
- All five search modes
- Up to 10,000 domains per IP query
- 1 licensed user · 1 active device
- 1 running bulk job at a time
- Standard support
Practical regular access
Standard Monthly
$15/ month
A controlled monthly plan for regular research without exposing the service to unbounded result loads.
- All five search modes
- Up to 100,000 domains per IP query
- 1 licensed user · 1 active device
- 1 running bulk job at a time
- Streaming, resume, and export
For exceptional result sets
Unlimited Monthly
$25/ month
For researchers who regularly reach very dense shared-hosting IPs and need the full available result set.
- All five search modes
- No plan-imposed per-IP result cap*
- 1 licensed user · 1 active device
- 1 running bulk job at a time
- Priority support
Before you decide
Clear answers, without impossible promises.
Test representative addresses and compare scope—not only a provider’s largest headline number.
Why not simply choose the provider with the biggest number?
A number without scope can mix current, historical, duplicated, or low-quality relationships. Evaluate representative results, freshness controls, delivery reliability, and interpretation—not only the headline count.
Can I test before paying for a year?
Yes. Start with the safe public preview, then use the seven-day Proof Pass if you need to test the complete client workflow with your own list.
Do both monthly plans include all five modes?
Yes. Standard and Unlimited both include the five core modes. They differ in per-IP result allowance and support, while annual billing lowers the effective monthly price.
Is ReverseIP Data a dedicated reverse-IP service?
Yes. ReverseIP Data provides a dedicated customer experience for reverse-IP research, access, documentation, and support.
Start with your own evidence
Run a protected lookup before you pay.
Try a representative public IPv4, inspect the live sample, and review how the data is built.